taxonID	type	description	language	source
7209B242D80ED61FE044FF3D0F16FAD2.taxon	type_taxon	Type Species. Eremisopus beei n. sp.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D80ED61FE044FF3D0F16FAD2.taxon	etymology	Etymology. Eremisopus is derived from the Greek (gender masculine) for “ lonely isopod ”, because this taxon has been found only in a single isolated stream near PAGO Mission, north of Kalumburu in the NW Kimberley.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D80ED61FE044FF3D0F16FAD2.taxon	diagnosis	Diagnosis. Pleonite 5 with dorsal median ridge. Pleotelson with dorsal median ridge and posterolateral ridges confluent with posterior margin; median lobe broad, with concave dorsal surface; postanal ridge triangular in ventral view, with robust setae at posterior apex; lateral lobes forming large vertical plates; dorsal uropod ridge curving strongly and extending posteriorly from uropods on pleotelson margin. Antennal flagellum proximal articles with dense cuticular hairs in male (fewer in females). Pereopod I dactylus distinctly shorter than propodal palm, propodal palm of male with approximately 30 robust setae. Pereopod V – VII basis with dorsal ridge plates as wide as basis shaft. Pereopod VII ischium dorsal ridge forming flange less than shaft width. Pleopods I – III protopods only with coupling hooks; pleopod II with lobe-like lateral epipod, appendix masculina shorter than endopod length, setose along entire margin. Uropod protopod dorsomedial plate higher than depth of protopodal shaft, with row of robust setae; rami distal tips pointed.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D80ED61FE044FF3D0F16FAD2.taxon	discussion	Remarks. Eremisopus n. gen. shares several character states with Eophreatoicus species including a plate-like ridge on the ischium of the posterior pereopods, a uropodal ridge on the pleotelson that curves smoothly toward the posterior margin, and a first pereopod with numerous conical stout setae and a dactylus shorter than the palm. Some, but not all, Eophreatoicus species also have a dorsal midline ridge on the pleotelson, similar to Eremisopus. A large postanal ridge of the pleotelson with stout setae is also present in both taxa, although more strongly developed in Eophreatoicus. The two genera differ in the size of the dorsal plate on the ischium of pereopod VII, being smaller in Eremisopus, as well as the presence of pleotelson lateral ridges in Eremisopus.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D80ED617E03CFAC90ECEFE76.taxon	description	Figs. 1 – 7 “ New Genus 3 ”: Wilson & Johnson, 1999: 265, fig. 1. “ New Genus X 3 ”: Wilson & Keable, 2001, table 1.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D80ED617E03CFAC90ECEFE76.taxon	materials_examined	Type material. HOLOTYPE Ƌ, WAM C 25049, bl 29.7 mm (formalin preserved), water temperature 24 ° C, depth 20 cm, slow flowing, 20 May 1997, C. Bee, D. Wilson & B. Hanson, 17 May, 1997. PARATYPES: formalin fixed — AM P 60527, 6 ƋƋ (including 2 with exuvia, male “ B ” dissected to examine gut), 2 ♀♀ (including female “ A ” 22.6 mm, with exuvia, dissected for description), 2 mancas (offspring of female “ A ”) — all collected originally as for holotype then kept in aquaria for various lengths of time; AM P 61456, Ƌ “ D ” bl 32.1 mm (dissected for description and illustration including; mouthparts, pereopods and pleopods), collection details as for AM P 60527; AM P 60528, 47 ƋƋ, 2 ♀♀ (in amplexus with males), collection details as for holotype except — 14 ° 10.55 ' S 126 ° 41.39 ' E (GPS), 26.0 ° C, pH 6.0, under rocks with gravel in flowing water, W. Ponder & G. Wilson, 18 June 1999, sample number WA 576; AM P 60529, 37 ♀♀, 5 indeterminate specimens, collection details as for AM P 60528; WAM C 25050, Ƌ bl 26.4 mm, 2 ♀♀ bl 17.3 mm, collection details as for AM P 60528; AM P 60530, female “ D ” bl 20.9 mm (dissected for pleopod description and illustrations), collection details as for AM P 60528; AM P 61453, Ƌ bl 29.2 mm (dissected for SEM of mandibles), collection details as for AM P 60528; AM P 61454, Ƌ bl 31.3 mm (dissected for SEM), collection details as for AM P 60528; AM P 61455, ♀ bl 18.6 mm (dissected for SEM) collection details as for AM P 60528; ethanol preserved — AM P 60531, 28 ƋƋ, 11 ♀♀, 3 indeterminate specimens, collection details as for AM P 60528. Type locality. “ South Creek ”, stream crossing road between Honeymoon Bay and PAGO Mission ruins, near Kalumburu Township, 15 km northeast of Honeymoon Beach, Western Australia, 14 ° 10.529 ' S 126 ° 41.408 ' E (GPS), fine sand, under rocks.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D80ED617E03CFAC90ECEFE76.taxon	etymology	Etymology. We are grateful to Mr Cameron Bee who brought this species to our attention, hence the species name beei in his honour.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D80ED617E03CFAC90ECEFE76.taxon	diagnosis	Diagnosis. See generic diagnosis.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D80ED617E03CFAC90ECEFE76.taxon	description	Description based on male. Colouration in 70 % ethanol cream-yellow with dense covering of grey chromatophores, chromatophores less dense on pereopods and pleonites than on pereonites. Live colour similar, but whiter under dark chromatophores. Head (Figs. 1 A, B, 2 A) length shorter than width in dorsal view; width 0.82 pereonite 1 width; lateral profile of dorsal surface smoothly curved; surface rough; setae absent. Eyes bulging dorsolaterally; maximum diameter 0.25 – 0.33 head depth; dorsal margin convex, ventral margin straight; orientation of longest axis between horizontal and vertical; ocelli distinguishable as individual units (etched on surface, pigment not clearly segmented), pigmentation dark. Cervical groove sigmoidal, extending nearly to dorsal margin of head. Mandibular groove smoothly indented. Mandibular notch present. Clypeal notch present. Antennal notch shallow, without posterior extension. Pereon (Fig. 1 A) broad, width exceeding head width (1.23 times); dorsal surface with transverse ridges, with scattered roughness, and smooth (roughness tending to be on posterior and lateral surfaces); setae on dorsal surface scattered, fine. Pereonites 2 – 7 in dorsal view wider than long. Coxal articulation of pereonites 2 – 4 fused (but with partial lateral suture more strongly developed in female than male), 5 – 7 free. Sternal processes absent. Typhlosole minimal, ventral invagination forming inverted U- shape in cross section (weak invagination); hindgut caecae absent. Pleonites (Fig. 1 A) in dorsal view 2 – 4 respective lengths more than half the length of pleonite 5, 1 – 4 relative lengths subequal, 1 – 4 width 0.87 composite length in dorsal view. Pleonite 5 with dorsal median ridge. Pleotelson (Figs. 1 A, C, 2 E – G) lateral length 0.15 body length, 0.73 depth; dorsal length 1.35 width; depth 1.3 pereonite 7 depth. Posterior margin entire, reflexed dorsally, without irregular denticulations; median lobe width 0.5 pleotelson width, produced, greatest length 0.35 pleotelson total length; lateral lobes narrower than median lobe, distinct from median lobe, not extending posteriorly to median lobe, medial length 0.35 pleotelson total length; median lobe with 4 robust sensillate setae (on margin, ventral postanal ridge with a row of 10); lateral lobes with 2 robust sensillate setae. Dorsal uropodal ridge without setae. Ventral margin anterior to uropods with robust setae, setae denticulate and smooth, 17 altogether (approximately), posterior seta larger than anterior adjacent setae. Antennula (Fig. 2 A, B) length 0.1 body length, with 15 articles. Tiny aesthetascs on article 7 to terminal article. Terminal article distally oblique, with 2 or more groups of aesthetascs. Penultimate article length approximately subequal to length of other articles. Distal articles oval. Antenna (Figs. 1 A, 2 C, D) length 0.42 body length. Flagellum length 0.62 total antenna length, with 27 articles. Propodal article 1 absent. Article 5 longer than article 4, article 6 shorter than articles 4 and 5 combined. Mouthfield clypeus consisting of broad asymmetrical bar, rounded at mandibular fossae and with concave lateral margins, width 0.43 head width. Labrum weakly angular ventrally, appearing shield shaped to semicircular in anterior view. Paragnaths (Fig. 4 A) with distolaterally rounded lobes, slightly produced distomedially, having medial and lateral setal rows and thickened medial base covered with dense long, fine setae. Mandible (Fig. 3) palp length 0.83 mandible length. Left spine row with 12 spines, 6 of which are bifurcate. Right spine row with 11 spines, 5 of which are bifurcate. Molar process length subequal to width; with 1 tooth, fine simple setae forming posterior row (implicit character state: dense along posterolateral margin). Maxillula (Fig. 4 B) medial lobe length 0.82 lateral lobe length; width 0.63 lateral lobe width; with 4 pappose setae; with 1 “ accessory ” seta, on distolateral margin, “ accessory ” setae simple; with 1 short weakly setulate seta on distal tip (weakly serrate). Lateral lobe distal margin with 8 denticulate robust setae, with 5 smooth robust setae; ventral face with 3 plumose setae (although only 1 of these appears to have setules on both margins). Maxilla (Fig. 4 C) medial lobe width 1.52 outer lateral lobe width; proximal portion smoothly continuous with distal portion; proximal and distal setal rows continuous. Outer lateral lobe longer than inner lateral lobe, width subequal to inner lateral lobe. Maxilliped (Fig. 4 D – F) epipod distal tip rounded. Endite medial margin with 3 coupling hooks on left side, 4 on right side; dorsal ridge with 24 large distally denticulate plumose setae (approximately, 8 are only distally denticulate, with one row of fine setules). Pereopod I (Fig. 5 A – D) dactylus ventrodistal margin smooth, with one distal accessory claw (heavy setae), distal accessory spines absent. Propodus dorsal margin proximal region protruding beyond distodorsal margin of carpus. Propodal palm convex to straight, spine-like projections absent; cuticular fringe weakly developed; stout denticulate setae absent; stout robust simple setae conical; elongate broad based setae absent. Merus dorsal margin projection shelf-like and U-shaped, with 1 or 2 robust simple setae. Basis ventrodistal margin elongate setae absent. Pereopods II – III (Fig. 6 A, B) dactylus without spines on ventral margin; with 1 distal accessory claw. Propodus articular plate present. Basis dorsal ridge in cross section angular and produced but not forming distinct plate. Pereopod IV (Fig. 6 C – E) subchelate with major hinges on dactylus-propodus. Dactylus length subequal to propodal palm (shorter in female). Propodus with 8 – 10 broad based setae on ventral margin, 2 distinctly larger than others; subequal in length to dactylar claw. Basis dorsal ridge in cross section angular and produced but not forming distinct plate. Pereopods V – VII (Fig. 6 F – J) dactylus with 1 distal accessory claw; spines absent. Propodus articular plate on posterior side of limb present. Basis dorsal ridge distinctly separated from basis shaft, in cross section produced and forming distinct plate. Pereopod VII basis dorsal ridge distal margin rounded. Penes (Fig. 6 I) curved posteriorly; length 0.18 body width at pereonite 7, extending to midline; smooth, lacking setae, distally tubular; distal tip rounded. Pleopod (Figs. 5 H, 7) exopods lateral proximal lobes on II – V, medial proximal lobes on II – V. Endopods I – V with setae on margins (sparse, on lateral proximal margin only), setae simple on all (mixed with minutely serrate setae). Protopods II – V with medial epipods; protopod II lateral epipods lobe-like. Pleopod I exopod broadest proximally, distal margin rounded, lateral margin rounded, dorsal surface lacking setae. Pleopod II endopod appendix masculina shaft proximal half ventral shape in cross section concave, not forming tube; basal musculature not pronounced (present but comparatively weak); distal tip broadly rounded; with 99 setae on margin (approximately), occurring laterally and medially; length 0.32 pleopod length, distal tip extending near to distal margin of endopod. Uropod (Figs. 1 A, 2 E – G) total length 1.14 pleotelson length. Protopod length 0.42 uropod total length; dorsomedial ridge produced, plate-like, margin smooth, margin setae robust and simple; with 2 robust spinose setae on distoventral margin, without robust simple setae on distoventral margin. Rami cross-sectional shape flattened on dorsal surface only. Endopod longer than protopod, straight-curving dorsally; dorsal margin robust setae placed midlength, 3 – 6 robust setae (3 laterally, 6 medially). Exopod length 0.84 endopod length; with 4 robust setae. Sexual dimorphism, differences of female from male. Antennula with 12 articles. Antenna flagellum length 0.68 total antenna length, with 26 articles; proximal articles lacking dense cuticular hairs. Pereopod I dactylus ventrodistal margin with row of thin scale-like spines, along 0.56 total length; propodus dorsal margin proximal region not protruding beyond distodorsal margin of carpus. Pereopod IV propodus with 5 broad based setae on ventral margin. Uropod total length 0.96 pleotelson length; endopod with 2 – 7 robust setae (2 laterally, 7 medially); exopod length 0.86 endopod length, 3 robust setae.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D80ED617E03CFAC90ECEFE76.taxon	discussion	Remarks. Some specimens of Eremisopus beei n. gen., n. sp. were reddish, owing to red pigments (possibly iron oxides) from the substrate adhering to their cuticle. Mr Cameron Bee brought numerous specimens back from a May 1997 field trip to the Kimberley. He kept his specimens in an aquarium for over a year with various native fishes. We also kept several specimens in a small unheated tank in our laboratory from late May 1997 until January 1998. During this time, a brooding female released several young and moulted to a preparatory condition. Despite their limited distribution in the wild, these animals appear to tolerate a broad range of environmental conditions in the laboratory. In the aquaria, these animals were active and, when disturbed, swam using strong strokes of the pleopods and running motions of the anterior pereopods. General distribution and habitat. “ South Creek ”, near Kalumburu, Western Australia; fine sand and gravel, under rocks.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D617E06CFDB20A94FEE7.taxon	description	“ New Genus X 2 ”: Wilson & Keable, 2001, table 1.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D617E06CFDB20A94FEE7.taxon	type_taxon	Type species. Peludo paraliotus n. sp.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D617E06CFDB20A94FEE7.taxon	etymology	Etymology. Peludo is a Spanish word meaning “ hairy ”, suggested by the resemblance of this taxon to the furry donkey in Juan Ramón Jiménez’s prose poem “ Platero y Yo ”. The gender is interpreted to be masculine.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D617E06CFDB20A94FEE7.taxon	diagnosis	Diagnosis. External body surfaces covered with fine cuticular hairs, forming dense “ fur ”, except for tuberculate dorsal midline. Head antennal notch deep, extending completely under eye; head length shorter than width in dorsal view, with several tubercles. Pleotelson strongly curled under body, pleopodal cavity facing anteriorly; posterior margin medial lobe reflexed against dorsal surface, triangular in posterior view; lateral lobes plate-like, shallower than basal width of uropod protopods; postanal ridge forming thin curved ring at edge of anal margin, lacking setae; dorsal uropod ridge elongate. Mandible palp length 0.4 mandible body length; article 1 forming thin ring, barely visible. Pereopodal dactyls proximally constricted, distally thin and sharp. Pleopod epipods without coupling hooks; exopods I – II strongly concave laterally. Uropod protopod dorsomedial plate broader than shaft, covering anus, lacking marginal setae.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D617E06CFDB20A94FEE7.taxon	discussion	Remarks. Peludo n. gen. is one of the more unusual taxa in the Amphisopodidae. Its reduced mandibular palp occurs nowhere else among the Phreatoicidea. The cuticular hairs, which cover the body, are usually seen only at high magnification and on scattered parts of the body in other phreatoicideans, examples include the basal part of the antennal flagellum in Eremisopus n. gen., and on the pleotelson (and elsewhere) in species of a new genus from the Grampians, Victoria (Wilson & Keable, in press). In Peludo, however, these hairs are macroscopic and dense. The deep antennal notch of Peludo extends well under the eye, giving it an almost pedunculate appearance (e. g., Fig. 8 E); the eye of other phreatoicideans is more clearly fused to the head. The pleotelson of Peludo is so strongly curled under the body that it cannot be fully straightened, at least in preserved specimens, whereas most other phreatoicideans are capable of fully extending the pleon (pleonites and pleotelson). Figure 8 B shows a live animal with the maximum extent of pleon extension. The pleotelson and uropods appear to close off the pleopodal and anal chambers (see Fig. 9 A – C; the uropods in Fig. 9 E, G, H were artificially spread to allow a ventral view of the pleotelson tip). The pleotelson distal tip of Peludo, flattened against the posterior surface of the pleotelson, superficially approximates the condition in Platypyga n. gen., although these two taxa have decidedly different forms of this structure. The pereopod I merus of Peludo overhangs from the carpus to the propodus, appearing longer than in other taxa such as Crenisopus, Phreatoicus Chilton, 1883 and Crenoicus.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D60FE2C2FE040C5BFBDC.taxon	description	Figs. 8 – 14	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D60FE2C2FE040C5BFBDC.taxon	materials_examined	Type material. HOLOTYPE Ƌ, WAM C 25051, bl (body length) 34.1 mm (formalin preserved). PARATYPES: formalin preserved — WAM C 25052, Ƌ bl 24.3 mm, ♀ bl 19.3 mm, ♀ bl 16.6 mm; AM P 60532, 11 ƋƋ, 3 ♀♀, 12 indeterminate specimens; AM P 61461, Ƌ bl 26.1 mm (dissected for SEM); AM P 61556, ♀ bl 19.6 mm (dissected for SEM); AM P 61557, Ƌ bl 28.9 mm (dissected for description and also illustration of pleopods); AM P 61558, ♀ bl 22.3 mm (dissected for description and also illustration of pleopods); ethanol preserved — AM P 60533, 26 ƋƋ, 3 ♀♀, 14 indeterminate specimens — all from type locality, hand and hand sieves, pH 6.57, 11.8 ° C, G. Wilson, R. Wetzer & S. Keable, 6 September 1999, WA- 597. Type locality. Stream flowing from swamp at road crossing to le Grand Beach, Cape le Grand National Park, Western Australia, 33 ° 58.75 ' S 122 ° 07.23 ' E (GPS), under rocks and log, among base of reeds. Other material. WAM C 21976 (WAM 28 – 95), Ƌ bl 35.5 mm, Cape le Grand National Park, Western Australia, B. Knott, 20 May 1977; series from Cape le Grand National Park, Western Australia, G. Wilson, R. Wetzer & S. Keable, preserved in 95 % ethanol — AM P 60534, 19 ƋƋ, 3 ♀♀, 65 indeterminate specimens, freshwater creek flowing into Hellfire Bay, 34 ° 00.18 ' S 122 ° 09.63 ' E (GPS), reed roots and rocks on edge of gully, sandy substrate (no mud), along steep side of gully 50 – 75 m from beach, hand sieves, pH 6.7, 17 ° C, 5 September 1999, WA- 591; AM P 60535, 1 Ƌ, 2 ♀♀, 1 indeterminate specimen, Juncus swamp / peat land behind Hellfire Bay, 33 ° 59.99 ' S 122 ° 09.72 ' E (GPS), silty wet substrate among roots of Juncus, hand sieves, 5 September 1999, WA- 593; AM P 60536, 2 ƋƋ, 3 ♀♀, 7 indeterminate specimens, perennial Juncus swamp east of Hellfire Bay, 34 ° 00.06 ' S 122 ° 10.02 ' E (GPS), hand sieves, 6 September 1999, WA- 596.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D60FE2C2FE040C5BFBDC.taxon	etymology	Etymology. The Greek species name paraliotus means “ an inhabitant of the seacoast ”.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D60FE2C2FE040C5BFBDC.taxon	diagnosis	Diagnosis. See generic diagnosis.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D60FE2C2FE040C5BFBDC.taxon	description	Description based on male. Colouration in life, dark reddish brown, same colour as substrate. In 95 % ethanol, dorsal surfaces of head, pereon and pleon grey mottled with pink, lateral surfaces of head, pereon and pleon, and dorsal surface of pleotelson, with dense “ fur ” of cuticular hairs trapping brown sediment, some pink cuticle exposed on pereopods. When cleaned, lateral surfaces and appendages mostly pink, mottled with grey. Head (Fig. 8 A, C – E) length shorter than width in dorsal view; width 0.78 pereonite 1 width; lateral profile of dorsal surface smoothly curved; setae absent. Eyes bulging dorsolaterally; maximum diameter 0.24 head depth; dorsal margin convex, ventral margin concave; orientation of longest axis horizontal; ocelli distinguishable as individual units, pigmentation dark. Cervical groove smoothly curved, extending nearly to dorsal margin of head. Mandibular groove present. Mandibular notch present. Clypeal notch present. Pereon (Fig. 8 A) broad, width exceeding head width; dorsal surface with scattered tubercles and with transverse ridges; setae on dorsal surface absent. Pereonites 2 – 7 in dorsal view wider than long. Coxal articulation of pereonites 2 – 4 nearly fused, 5 – 7 free (although coxa 5 partially fused). Sternal process occurring on sternite 7 (more pronounced in female). Typhlosole absent, gut round in cross section; hindgut caecae absent. Pleonites (Fig. 9 A – C) in dorsal view 2 – 4 respective lengths more than half the length of pleonite 5, 1 – 4 relative lengths unequal, pleonite 4 length greater than pleonites 1 – 3, 1 – 4 width 0.78 composite length in dorsal view. Pleotelson (Figs. 8 A, 9) lateral length 0.12 body length, 0.66 depth; dorsal length 1.18 width; depth 1.23 pereonite 7 depth. Posterior margin entire, reflexed dorsally, without irregular denticulations; median lobe width 0.5 pleotelson width, produced, greatest length 0.05 pleotelson total length; lateral lobes forming vertical plates, narrower than median lobe, distinct from median lobe, extending beyond median lobe, medial length 0.1 pleotelson total length; median lobe robust sensillate setae absent; lateral lobes robust sensillate setae absent. Dorsal uropodal ridge without setae. Ventral margin anterior to uropods with robust setae, setae denticulate, 7 altogether, posterior seta subequal to anterior adjacent setae. Antennula (Fig. 8 G) length 0.09 body length, with 12 articles. Tiny aesthetascs on article 7 to terminal article. Terminal article distally oblique, with 2 or more groups of aesthetascs (tiny). Penultimate article length approximately subequal to length of other articles. Distal articles circular. Antenna (Fig. 8 F) length 0.26 body length. Flagellum length 0.59 total antenna length, with 20 articles. Propodal article 1 absent. Article 5 shorter than article 4, article 6 shorter than articles 4 and 5 combined. Mouthfield (Fig. 8 C, D) clypeus consisting of broad bar rounded at mandibular fossae, width 0.56 head width. Labrum ventrally semicircular in anterior view, asymmetrical, broadest on right side. Paragnaths (Fig. 11 A) with distolaterally rounded lobes, having medial and lateral setal rows and thickened medial base covered with cuticular spinules. Mandible (Fig. 10) left spine row with 16 spines (approximately), 6 of which are bifurcate. Right spine row with 14 spines (approximately), 5 of which are bifurcate. Molar process with 1 tooth, complex setulate setae forming posterior row (plumose). Maxillula (Fig. 11 B, C) medial lobe length 0.85 lateral lobe length; width 0.7 lateral lobe width; with 4 pappose setae; with 2 “ accessory ” setae, one on distolateral margin and one between central pappose setae, “ accessory ” setae simple; short weakly setulate seta on distal tip absent. Lateral lobe distal margin with 7 denticulate robust setae, with 6 smooth robust setae; ventral face with 2 plumose setae. Maxilla (Fig. 11 D, E) medial lobe width 0.78 outer lateral lobe width; proximal portion smoothly continuous with distal portion; proximal and distal setal rows continuous. Outer lateral lobe length subequal to inner lateral lobe, wider than inner lateral lobe. Maxilliped (Fig. 11 F, G) epipod distal tip pointed. Endite medial margin with 4 coupling hooks on left side, 4 on right side; dorsal ridge with 26 large distally denticulate plumose setae (but only distal setae denticulate). Pereopod I (Fig. 12 A – D) dactylus length subequal to palm; ventrodistal margin smooth; with 2 distal accessory claws; distal accessory spines absent. Propodus dorsal margin proximal region not protruding. Propodal palm concave, spine-like projections absent; cuticular fringe weakly developed; stout denticulate setae absent; stout robust simple setae conical, 19 altogether; with 20 elongate broad based setae. Merus dorsal margin projection shelf-like and U-shaped (but approaching a spinelike condition), with numerous elongate simple setae. Pereopods II – III (Fig. 13 A) dactylus without spines on ventral margin; with 1 distal accessory claw. Propodus articular plate present. Basis dorsal ridge in cross section produced and forming distinct plate. Pereopod IV (Fig. 13 B, C) simple, not prehensile. Dactylus length subequal to propodal palm. Propodus with 12 broad based setae on ventral margin, 1 distinctly larger than others; shorter than dactylar claw. Basis dorsal ridge in cross section angular and produced but not forming distinct plate. Pereopods V – VII (Fig. 13 D) dactylus with 1 distal accessory claw; spines absent. Propodus articular plate on posterior side of limb present. Basis dorsal ridge distinctly separated from basis shaft, in cross section produced and forming distinct plate. Pereopod VII ischium dorsal ridge forming flange less than shaft width. Penes (Fig. 13 D) curved posteriorly; length 0.23 body width at pereonite 7, extending past midline and onto pleonite 1; with cuticular hairs on shaft, distally tapering and broadening (broadest medially); distal tip flattened and truncate. Pleopod (Figs. 9 C, F, 12 E, 14) exopods with lateral proximal lobes on I – V (extending laterally but not extending proximally along protopod on pleopod I), medial proximal lobes on I – V (just extending on to protopod on pleopod I). Endopod I only with setae on margins, setae plumose. Protopods II – V with medial epipods; protopod I lateral epipods linear. Pleopod I exopod broadest proximally, distal margin rounded, dorsal surface lacking setae. Pleopod II endopod appendix masculina shaft proximal half ventral shape in cross section concave, not forming tube; basal musculature pronounced; distal tip broadly rounded; with 51 setae on margin, occurring laterally and medially; length 0.68 pleopod length, distal tip extending near to distal margin of endopod. Uropod (Fig. 9) total length 0.97 pleotelson length. Protopod length 0.53 uropod total length; dorsomedial ridge produced, plate-like, margin smooth; dorsolateral margin setae absent; distoventral margin robust setae absent; ventral ridge without rows of long laterally projecting setae (implicit character state: abundant long “ cuticular hairs ” present). Rami distal tips pointed; cross-sectional shape round. Endopod longer than protopod, straight-curving dorsally; dorsal margin robust setae absent. Exopod length 0.87 endopod length; exopod dorsal margin robust setae absent. Sexual dimorphism, female differences from male. Antennula with 11 articles. Antenna length 0.31 body length. Pereopod I dactylus ventrodistal margin with row of thin scalelike spines, along 0.44 total length; propodal palm with 23 elongate broad based setae. Pereopod IV propodus with 9 broad based setae on ventral margin. Uropod total length 1.1 pleotelson length, protopod length 0.55 uropod total length.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D806D60FE2C2FE040C5BFBDC.taxon	discussion	Remarks. The Hellfire Bay specimens (samples WA 591 – 593) are not obviously different from those from the type locality. The largest specimens, however, are significantly smaller than those collected near Cape le Grand Beach. Nevertheless, all of our collections of this species from Cape le Grand National Park appear to be conspecific. General distribution and habitat. Cape le Grand National Park, Western Australia; silty coastal wetlands including Juncus swamps and outflowing streams.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED60FE05DFB2C0B32FCAF.taxon	description	“ New Genus X 4 ” Wilson & Keable, 2001, table 1.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED60FE05DFB2C0B32FCAF.taxon	type_taxon	Type species. Platypyga subpetrae n. sp.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED60FE05DFB2C0B32FCAF.taxon	etymology	Etymology. Platypyga is derived from the Greek words meaning “ flat rump ”, which refers to the flattened posterior margin of the pleotelson.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED60FE05DFB2C0B32FCAF.taxon	diagnosis	Diagnosis. Body dorsal surfaces pitted especially on head, lacking elongate setae. Head lacking cervical groove. Pleotelson posterior margin with broad reflexed medial region, compressed toward anterior and dorsal margins, medially cleft, forming curved ridge between widelyseparated dorsal projections, each with large robust setae; postanal ridge narrow, with fine setae. Pereopods V – VII with dorsal ridge plates narrower than basis shaft. Pleopod I protopod with coupling hooks. Uropod protopod ventral ridge with rows of laterally projecting long simple setae; dorsomedial plate absent; distoventral robust setae lacking denticles. Uropod rami distally rounded, with apical elongate robust setae.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED60FE05DFB2C0B32FCAF.taxon	discussion	Remarks. We homologise the unusual pleotelson posterior margin of Platypyga n. gen. with the cleft medial lobe found in Synamphisopus and Phreatomerus. Although we are uncertain, assuming that the two widely spread lobes are homologous to the medial lobe of the other taxa appears to be the simplest explanation. Thus, the small setose bumps on lateral margin just above the uropodal insertions may be homologous with the lateral lobes of other taxa. The posterior margin in Platypyga, however, lacks any definite demarcation between the larger, more dorsal lobes and this group of setae. Other taxa have groups of setae above the uropods, complicating this interpretation. Because of this uncertainty, we have not scored Platypyga as having lateral lobes. If, however, the dorsolateral pleotelson lobes of Platypyga are homologous with lateral lobes, phylogenetic analysis (research in progress) might place this taxon among the Phreatoicidae, despite its lacking phreatoicid mandibular (pedunculate spine row, absent right lacinia mobilis) and appendix masculina (generally rod-like) synapomorphies. This placement occurs because, unlike many amphisopodids, Platypyga also lacks a large dorsomedial plate on the uropodal protopod. The generalised appendix masculina of Platypyga (concave in proximal cross section, acutely rounded distally with a fringe of setae) is similar to other amphisopodids such as Eremisopus and Peludo, and may represent a plesiomorphic condition for the suborder. Consequently, Platypyga appears to have has a unique mixture of plesiomorphic and apomorphic features.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED605E2B0FC220BFBF981.taxon	description	Figs. 15 – 22	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED605E2B0FC220BFBF981.taxon	materials_examined	Type material. HOLOTYPE Ƌ, WAM C 25053, bl 15.7 mm (ethanol preserved) hand sieve, G. D. F. Wilson, 8 October 1998, WA- 564. PARATYPES: formalin preserved — AM P 60537, 53 ƋƋ, 1 indeterminate specimen, as for holotype except, 34 ° 23.4 ' S 118 ° 03.1 ' E, spring fed stream at base of scree slope, in silty gravel in pool on stream, hand sieves, pH 6.96, 11.0 ° C, G. Wilson, R. Wetzer & S. Keable, 9 September 1999, WA- 603; AM P 61460, Ƌ 15.8 mm (dissected for SEM), collection details as for AM P 60537; WAM C 25054, Ƌ bl 18.2 mm, Ƌ bl 14.3 mm, Ƌ bl 13.9 mm, collection details as for AM P 60537; ethanol preserved — AM P 60538, 49 ƋƋ, 5 ♀♀, same collection details as holotype; AM P 61457, Ƌ (dissected for SEM), same collection details as holotype; AM P 61458, ♀ 7.4 mm (dissected for description, SEM and illustration of pleopods), same collection details as holotype; AM P 61459, Ƌ 13.7 mm (dissected for description and also illustration of pleopods), same collection details as holotype; AM P 61559, 1 specimen (whole mounted for SEM), same collection details as holotype; AM P 60539, 49 ƋƋ, collection details as for AM P 60537. Type locality. Spring below Toolbrunup Peak, Western Australia, Australia, 34 ° 23.41 ' S 118 ° 02.98 ' E (GPS), 700 m altitude, under rocks in sandy gravel, spring emerging at bottom of large scree slope. Other material. WAM C 23271, Ƌ bl 20 mm, Toolbrunup Peak, Stirling Range, Western Australia, 34 ° 23.17 ' S 118 ° 02.51 ' E, 1030 m altitude (original data indicating Toolbrunup summit), from a southeast facing gully, S. Barrett, Department of Conservation and Land Management (CALM), 1996; AM P 60540, 9 ƋƋ, 5 ♀♀, 1 indeterminate specimen, spring in saddle on west side at head of stream running on south side of track, Bluff Knoll, Stirling Range, Western Australia, 34 ° 22 ' S 118 ° 15 ' E (map estimate), W. F. Ponder, January 1988.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED605E2B0FC220BFBF981.taxon	etymology	Etymology. The species name subpetrae is a Latin genitive singular noun meaning “ under a crag or pile of rocks ”, referring to the type locality at the base of a scree slope. and pleotelson; B, head, dorsal view; C, D, pleotelson, dorsal and posterior views. Scale bar 1 mm.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED605E2B0FC220BFBF981.taxon	diagnosis	Diagnosis. See generic diagnosis.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED605E2B0FC220BFBF981.taxon	description	Description based on male. Colouration colourless in life, colour variable in specimens preserved in 95 % ethanol — from slate grey-brown mottled with white to almost pure white with only slight brown-yellow tinges, gut a translucent turquoise visible through cuticle and particularly through sternites. Head (Figs. 15 A, B, 16 A – C, E) length shorter than width in dorsal view; width 0.89 – 0.92 pereonite 1 width; lateral profile of dorsal surface smoothly curved; surface smooth and shiny; setae sparse, fine. Eyes bulging dorsolaterally (slight, the eye appears somewhat raised because of the strongly developed mandibular groove underneath it); maximum diameter 0.12 – 0.2 head depth; oval; orientation of longest axis vertical; ocelli not distinguishable as individual units, pigmentation dark and light (white background with variable black spots). Mandibular groove with acute indentation. Mandibular notch present. Clypeal notch present (weak). Antennal notch shallow, without posterior extension. Pereon (Figs. 15 A, 16 A) narrow, width near head width; dorsal surface with scattered roughness and smooth; setae on dorsal surface scattered, fine. Pereonites 2 – 7 in dorsal view wider than long. Coxal articulation of pereonites 2 – 4 nearly fused (lateral suture weak but complete), 5 – 7 free. Sternal processes absent. Typhlosole absent, gut round in cross section; hindgut caecae absent. Pleonites (Figs. 15 A, 16 A) in dorsal view 2 – 4 respective lengths more than half the length of pleonite 5, 1 – 4 relative lengths subequal, 1 – 4 width 0.85 composite length in dorsal view. Pleotelson (Figs. 15 A, C, D, 21 A – C) lateral length 0.11 body length, 0.94 depth; dorsal length 1.2 width; depth 1.48 pereonite 7 depth. Posterior margin without irregular denticulations; median lobe width 0.69 pleotelson width, greatest length 0.05 pleotelson total length; lateral lobes absent; median lobe with 2 robust sensillate setae on one of the cleft pair. Dorsal uropodal ridge terminating at pleotelson margin above uropods (implicit character state: short, weak); without setae. Ventral margin anterior to uropods with robust setae, setae smooth, 3 altogether, posterior seta smaller than anterior adjacent setae (thicker but shorter). Antennula (Fig. 16 C, D) length 0.11 body length, with 12 articles. Tiny aesthetascs on articles 9, 11, 12. Terminal article distally oblique, with 2 or more groups of aesthetascs, length subequal to penultimate article length. Penultimate article length approximately subequal to length of other articles. Distal articles circular. Antenna (Figs. 15 A, 16 A, E – G) length 0.37 body length. Flagellum length 0.62 total antenna length, with 18 articles. Propodal article 1 absent. Article 5 longer than article 4, article 6 shorter than articles 4 and 5 combined. Mouthfield (Figs. 15 A, 16 B) clypeus consisting of broad bar rounded at mandibular fossae, somewhat asymmetrical, broader on left side and with concave lateral margin, width 0.53 head width. Labrum ventrally semicircular in anterior view, somewhat asymmetrical. Paragnaths (Fig. 18 A) with distolaterally rounded lobes, having medial and lateral setal rows and thickened medial base covered with cuticular spinules. Mandible (Fig. 17) palp length 0.64 mandible length. Left spine row with 12 spines, 9 of which are bifurcate. Right spine row with 14 spines, 9 of which are bifurcate. Molar process length subequal to width; with 1 tooth. Maxillula (Fig. 18 B, C) medial lobe length 0.82 lateral lobe length; width 0.68 lateral lobe width; with 4 pappose setae; with 2 “ accessory ” setae, one on distolateral margin and one between central pappose setae, “ accessory ” setae simple; short weakly setulate seta on distal tip absent. Lateral lobe distal margin with 9 denticulate robust setae, with 5 smooth robust setae; ventral face with 2 plumose setae. Maxilla (Fig. 18 D, E) medial lobe width 1.4 outer lateral lobe width; proximal portion distinctly angled to distal portion; proximal and distal setal rows continuous. Outer lateral lobe length subequal to inner lateral lobe, wider than inner lateral lobe. Maxilliped (Fig. 18 F, G) epipod distal tip truncate. Endite medial margin with 5 coupling hooks on left side, 4 on right side; dorsal ridge with 17 large distally denticulate plumose setae (approximately, very weakly denticulate distally). Pereopod I (Fig. 19 A – D) dactylus length subequal to palm; ventrodistal margin with row of thin scale-like spines, along 0.46 total length; with 1 distal accessory claw; distal accessory spines absent. Propodus dorsal margin proximal region protruding beyond distodorsal margin of carpus. Propodal palm convex to straight, spine-like projections absent; cuticular fringe weakly developed; stout denticulate setae absent; stout robust simple setae basally inflated, 8 altogether (SEM); with 6 elongate broad based setae. Merus dorsal margin projection shelf-like and U-shaped, with numerous elongate simple setae and with 1 or 2 robust simple setae. Pereopods II – III (Fig. 20 A, B) dactylus without spines on ventral margin; with 1 distal accessory claw. Propodus articular plate present. Basis dorsal ridge in cross section angular and produced but not forming distinct plate. Pereopod IV (Fig. 19 E, F) subchelate with major hinges on dactylus-propodus (weakly). Dactylus shorter than propodal palm, or longer than propodal palm (shorter when measured on specimen, longer in SEM). Propodus with 1 broad based seta on ventral margin, shorter than dactylar claw (shorter when measured on specimen, subequal in SEM). Basis dorsal ridge in cross section angular and produced but not forming distinct plate. Pereopods V – VII (Fig. 20 C – F) dactylus with 1 distal accessory claw; spines absent. Propodus articular plate on posterior side of limb present. Basis dorsal ridge not distinctly separated from basis shaft, in cross section angular on pereopod V, produced and forming distinct plate on pereopods VI – VII. Pereopod VII ischium dorsal ridge flange absent. Penes (Fig. 20 E) curved posteriorly; length 0.19 body width at pereonite 7, extending past midline and onto pleonite 1; smooth, lacking setae, distally tapering (broadest medially); distal tip rounded. Pleopod (Figs. 21 E, F, 22) exopods lateral proximal lobes on II – V, medial proximal lobes on II – V. Endopods I – V without setae on margins. Protopods II – V with small medial projections, III – V with lateral epipods; 3 – 4 coupling hooks on I; lateral margin I with simple and lightly plumose setae, lateral margin II without setae, lateral epipods III – V with simple and lightly plumose setae; medial margin I without slender setae, medial margin / epipods II – V with simple setae. Pleopod I exopod broadest proximally, distal margin rounded, lateral margin rounded, dorsal surface lacking setae. Pleopod II endopod appendix masculina shaft proximal half ventral shape in cross section concave, not forming tube; basal musculature pronounced; distal tip acutely rounded; with 31 setae on margin, occurring laterally and medially; length 0.5 pleopod length, distal tip extending near to distal margin of endopod. Uropod (Fig. 21 B – D) total length 1.21 pleotelson length. Protopod length 0.51 uropod total length; dorsomedial ridge not produced, margin setae robust and simple; with 1 robust simple seta on distoventral margin. Rami cross-sectional shape flattened on dorsal surface only. Endopod subequal to protopod length, straight-curving dorsally; dorsal margin robust setae placed midlength, 6 robust setae (3 medially, 3 laterally). Exopod length 0.88 endopod length; exopod dorsal margin with 1 robust seta. Sexual dimorphism, female differences from male. Antennula length 0.1 body length, with 10 articles. Antenna length 0.35 body length; flagellum length 0.65 total antenna length, with 16 articles. Pereopod I dactylus ventrodistal margin with row of sharp spines, along 0.53 total length; propodus dorsal margin proximal region not protruding beyond distodorsal margin of carpus, propodal palm with stout serrate setae, 8 altogether; stout robust simple setae absent; with 2 elongate broad based setae. Pereopod IV propodus with 2 broad based setae on ventral margin. Uropod total length 1.16 pleotelson length; endopod with 7 robust setae (4 medially, 3 laterally); exopod length 0.72 endopod length.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
7209B242D81ED605E2B0FC220BFBF981.taxon	discussion	Remarks. Females of Platypyga subpetrae n. gen., n. sp. in our two samples (WA- 564, WA- 603) are rare and smaller than males. These specimens are smaller than the males from WAM C 23271 or AM P 60540 (Bluff Knoll specimens, W. Ponder collection). The latter collection has larger individuals (greater than 20 mm), with an increased number of robust setae on the terminal lobes of the pleotelson, than the WAM C 23271 specimen. These larger specimens also differ from the type material in having the uropodal endopod longer than protopod. This feature, however, is not readily discernible without careful measurements. Until further evidence is available, we assume that all material examined is conspecific. General distribution and habitat. Stirling Range National Park, Western Australia; rocky spring-fed streams flowing from south-facing slopes of the highest peaks of the Range.	en	Wilson, George D. F., Keable, Stephen J. (2002): New Genera of Phreatoicidea (Crustacea: Isopoda) from Western Australia. Records of the Australian Museum 54 (1): 41-70, DOI: 10.3853/j.0067-1975.54.2002.1359, URL: https://journals.australian.museum/wilson-and-keable-2002-rec-aust-mus-541-4170/
