taxonID	type	description	language	source
B93BAE9C318FAC4102EB289B422EF8ED.taxon	materials_examined	Material examined. Indonesia: Snellius Expedition 1929 - 1930. RMNH. CRUS. D. 56378, ca. 260 specimens, Sissie by Misool, beach, 06. Oct. 1929; RMNH. CRUS. D. 56379, ca. 140 specimens; RMNH. CRUS. D. 56380, ca. 60 specimens, Ambon, 11. - 17.09.1930; RMNH. CRUS. D. 56381, ca. 145 specimens; RMNH. CRUS. D. 56382, ca. 90 specimens. Aloonf, beach and reef, 08.02.1930; RMNH. CRUS. D. 56383, ca. 90 specimens, Tidore, strand, 24. - 29.09.1929; RMNH. CRUS. D. 56384, 9 males, 9 females (3 ov), Pelee (by Misool), beach, 04.10.1929; RMNH. CRUS. D. 56386, 1 male, Menado, 10.10.1930; RMNH. CRUS. D. 56390, 1 male, Morotai, 03. - 10.06.1930 RMNH. CRUS. D. 56396, 2 spec. Bopyridae, Alsang, beach and reef, 08.02.1930; RMNH. CRUS. D. 56397, 1 male, 1 female (ov), Los (by Misool), beach and reef, 03. - 06.10.1929; RMNH. CRUS. D. 56398, 4 males with Bopyridae, Tidore, beach, 24. - 29.09.1929; RMNH. CRUS. D. 56399, 1 male with Bopyridae, Paleleh, Celebes, beach, 21.0.1929; RMNH. CRUS. D. 56400, 1 male, Maenado, 01. Oct. 1930; RMNH. CRUS. D. 56401, 1 male, Ambon, 11. - 17.09.1930; RMNH. CRUS. D. 56402, 2 males with Bopyridae, Pelokan, Postiljon Island, beach and reef, 20.12.1929; RMNH. CRUS. D. 56403, 1 male, near Koepang, strand, 25.11.1929; RMNH. CRUS. D. 56404, 1 male, Tidore near Koepang, Tjabo, beach, 24. - 29.09.1929; RMNH. CRUS. D. 56405, 1 male, Paleleh Celebes, beach, 21.08.1929; MNH. CRUS. D. 56406, 1 male, Ake Salaka, Raoebaai Halmakeira, beach and reef, 28.05.1930; RMNH. CRUS. D. 56407, 1 male, Taliaboe, Pasik Lpah, Solea Island), beach, 19.03.1930. Papua New Guinea. MNHN-IU- 2013 - 9128, 1 male, Stn. PM 08, 05 ° 15 ' 17.82 " - 145 ° 46 ' 38.91 E' ', Yabob Village, Gum River, 0 - 1 m, 12.11.2012; MNHN-IU- 2013 - 960, 1 male; MNHN-IU- 2013 - 9539, 1 female (ov), Stn. PM 41, 05 ° 08.1 ' S - 145 ° 49.3 ' E, Wonad Island, sandy beach and intertidal rocks, 0 - 1 m, 27.11. - 09.12.2012; MNHN-IU- 2013 - 295, 1 male, Stn. PM 12 05 ° 00.2 ' S - 145 ° 47.6 ' E, Rempi Area, S Dumduman Island, limestone rocky intertidal, 0 - 1 m, 09.11.2012; MNHN-IU- 2013 - 9615, 1 male, Stn. PM 22, 05 ° 04.7 ' S - 145 ° 48.9 ' E Sek I, Night Tide, 14.11.2012. MNHN-IU- 2013 - 9615, 1 male, Stn. PM 22, 05 ° 04.7 ' S - 145 ° 48.9 ' E Sek I, Night Tide, 14.11.2012; MNHN-IU- 11212, 1 male; Stn. VM 46, 15 ° 34 ' S- 167 ° 12 ' E, Vanuatu, Aore Island, 03.10.2006.	en	Werding, Bernd, Hiller, Alexandra (2015): Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys 516: 95-108, DOI: http://dx.doi.org/10.3897/zookeys.516.9923, URL: http://dx.doi.org/10.3897/zookeys.516.9923
B93BAE9C318FAC4102EB289B422EF8ED.taxon	description	Description. Carapace as broad as long or slightly broader than long, evenly rounded on branchial regions, broadest at posterior branchial level; surface covered with flattened, fine granules and faint plications. Front strongly produced, sinuously triangular, rostrum with a median sulcus, supraocular angle scarcely produced, depressed by a shallow groove. Orbits shallow; outer orbital angle rounded, scarcely produced, forming a low lobe with continuing hepatic margin; epibranchial angle accentuated but without notch or spine, continuing in a ridge along mesobranchial margin; branchial margin unarmed. Protogastric ridge forming a distinct crest, cervical grooves and regions slightly defined. Lateral walls with short, feathered setae. Basal segment of antennular peduncle with faint transverse rugae; anterior margin rounded, with a distinct tooth at mesial corner and a rounded protuberance at lateral corner. First movable segment of antenna with foliate, subquadrate projection without prominent tooth; second segment with a longitudinal granular crest ending proximally in a rounded tooth; third rounded, unarmed. Chelipeds sub-equal. Merus with transverse, low granules on dorsal surface, anterior margin armed distally with a prominent, finger-shaped, rounded lobe; dorso-distal margin fringed with short setae. Carpus about 2.5 to 3 times longer than broad; dorsal surface covered with shallow, transverse rows of granules; anterior margin with 3 (rarely 4) wide-set, serrate-edged, hooked teeth, the proximal one normally the largest; posterior margin slightly curved outwards, granules along posterior margin enlarged, forming a crest terminating in a prominent, curved tooth; dorso-distal margin with short pubescence posteriorly. Chelae large, broad and flattened; outer margin evenly arcuate and unarmed; dorsal surface covered with shallow, rounded granules; fingers broad, spineless, meeting at their entire length or slightly gaping in the larger chela, entire gape covered with a short pubescence. Ischium of walking legs covered with feathered setae; merus spineless or with 1 - 3 irregularly-set spines and a fringe of feathered setae along the anterior margin; merus of L 1 and L 2 with a posterodistal spine. Carpus with a fringe of feathered setae on the anterior margin. Propodus and dactylus with scattered, feathered and long, simple setae; propodus ventrally with a distal triplet of movable spinules, and one additional spine at mid-distance; dactylus with 3 movable spines on posterior margin.	en	Werding, Bernd, Hiller, Alexandra (2015): Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys 516: 95-108, DOI: http://dx.doi.org/10.3897/zookeys.516.9923, URL: http://dx.doi.org/10.3897/zookeys.516.9923
B93BAE9C318FAC4102EB289B422EF8ED.taxon	distribution	Distribution. The species, as defined here, is restricted to the western Pacific, from Singapore, eastwards trough Indonesia and Papua New Guinea to Vanuatu. Northwards it occurs in Taiwan, and Ryukyu and Kikaijima, Japan.	en	Werding, Bernd, Hiller, Alexandra (2015): Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys 516: 95-108, DOI: http://dx.doi.org/10.3897/zookeys.516.9923, URL: http://dx.doi.org/10.3897/zookeys.516.9923
442783D7684D21228C5D38DD6DA22717.taxon	materials_examined	Other material examined. Indonesia. RMNH. CRUS. D. 2604, 1 male, Indonesia, Endeh, Flores Island, leg. H. ten Kate, 1891; Measurements: CL 8,5 mm x CW 9,0 mm; RMNH. CRUS. D. 1643, 5 males, 2 females (1 ov), Indonesia, Endeh, Flores Island, leg. H. ten Kate, 1891; RMNH. CRUS. D. 56410, 4 males, Indonesia, Sangihe Island, leg. D. J. Hoedt 1867. Indonesia: Snellius Expedition. RMNH. CRUS. D. 56411, 12 males, 3 females (ov), Ternate, beach, 24.09.1929; RMNH. CRUS. D. 56412, 1 male, Rambay by Timor, beach and reef, 26 - 28.11.1929; RMNH. CRUS. D. 56413, 1 male, 2 females (ov), Paleleh, Celebes (Sulawesi), beach, 22.08.1929; RMNH. CRUS. D. 56414, 1 male, 1 female, (with Bopyridae), Ende, (Flores), 06. - 08.11.1930; RMNH. CRUS. D. 56415, ca. 430 specimens, Ende, (Flores), 06. - 08.11.1930; RMNH. CRUS. D. 56416, 2 males, Ambon, beach and reef 0 - 2 m, 06.05.1930; RMNH. CRUS. D. 56417, ca. 80 specimens, Ambon, 11. - 17. 09. 1930. Indonesia: Indonesien-Dutch Snellius-II Expedition. RMNH. CRUS. D. 56418, 3 males, Sta. 4.001, Ambon Bay, near Tawiri, cobble beach to disturbed reef, dead corals, 0 - 5 m, snorkeling, scuba diving, 22. and 30.08.1984. RMNH. CRUS. D. 56419, 1 male, Sta. 18, Ambon, Hitu, E side of Laha, up to and including Tawiri, littoral, 08.11.1990; RMNH. CRUS. D. 56420, 12 males, 6 females (5 ov), Ambon, Hitu, W side of Laha, 06.12.1990; RMNH. CRUS. D. 56421, 2 males (1 without chelae), 1 female (ov), Ambon, Sta. 36, Paso, (Bugala), littoral collection, 05.12.1990; RMNH. CRUS. D. 56422, 1 male, Ambon, Station 1, in front of the house, littoral collection, leg. CHJM Fransen, 06.11.1990. Papua New Guinea. MNHN-IU- 2013 - 9125, 3 males, 1 female (ov), Stn. PM 08, 05 ° 15 ' 17.82 " - 145 ° 46 ' 38.91 ", Yabob Village, Gum River, 0 - 1 m, 12.11.2012.	en	Werding, Bernd, Hiller, Alexandra (2015): Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys 516: 95-108, DOI: http://dx.doi.org/10.3897/zookeys.516.9923, URL: http://dx.doi.org/10.3897/zookeys.516.9923
442783D7684D21228C5D38DD6DA22717.taxon	description	Description. Carapace as broad as long, or somewhat broader than long, evenly rounded at branchial regions, broadest at posterior branchial level; surface covered with faint plications, more accentuated laterally. Front produced, sinuously triangular, rostrum with a moderately deep median sulcus, supraocular angle scarcely produced, depressed by a shallow groove. Orbits shallow, outer orbital edge bluntly produced, forming a shallow lobe with hepatic margin. Epibranchial angle unarmed, marked by a ridge continuing along the mesobranchial margin. Protogastric ridge forming a distinct crest, cervical grooves and regions poorly defined. Lateral walls thickly matted with long, feathered setae, largely concealing the basal parts of the walking legs. Basal segment of antennular peduncles with faint transverse rugae, anterior margin rounded, with distinct tooth at mesial corner and rounded protuberance at lateral corner. First movable segment of antenna anteriorly with foliate, square-cut projection with a shallow, forwardly directed tooth; second with a longitudinal granular crest, extending proximally in a rounded tooth, third rounded, unarmed. Chelipeds sub-equal. Merus with transverse, shallow plications on dorsal surface, anterior margin armed distally with a finger-shaped, granular lobe, fringed with short setae. Carpus slender, highly variable, from about 3 to 4 times longer than broad, dorsal surface covered with low, scale-like granules; anterior margin with 2 shallow teeth, a third one faintly marked or lacking; the proximal tooth normally the largest and acute, the second one smaller and blunt. Posterior margin slightly curved outwards, granules along posterior margin enlarged, forming a crest along the postero-distal margin, extending into a spine-tipped, distal tooth. Chelae large, slender, transversely swollen; outer margin curved on entire length, unarmed; fingers spineless, frequently gaping in larger chela. Gape of fingers with large, dense pubescence, visible from above, sometimes only in one chela, seldom lacking. Ischium of walking legs covered with a pubescence of feathered setae; merus with a single dorsal spine close to the distal edge in L 1 and L 2, and a fringe of feathered setae on anterior margin; merus of L 1 and L 2 with a posterodistal spine, sometimes lacking in L 2 or in both. Carpus and propodus with a fringe of feathered setae on anterior margin, with scattered feathered and simple setae. Propodus ventrally with distal triplet of movable spinules and one additional spine at mid-distance; dactylus with 3 movable spines on posterior margin.	en	Werding, Bernd, Hiller, Alexandra (2015): Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys 516: 95-108, DOI: http://dx.doi.org/10.3897/zookeys.516.9923, URL: http://dx.doi.org/10.3897/zookeys.516.9923
442783D7684D21228C5D38DD6DA22717.taxon	distribution	Distribution. Eastern Indian Ocean, Nicobar Islands, Indonesia, Papua New Guinea, New Caledonia.	en	Werding, Bernd, Hiller, Alexandra (2015): Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys 516: 95-108, DOI: http://dx.doi.org/10.3897/zookeys.516.9923, URL: http://dx.doi.org/10.3897/zookeys.516.9923
AEC023561C81BEEF240C25B1D7E51F79.taxon	description	Description. Carapace as long as broad or slightly broader than long, invertedly heart-shaped, broadest at metabranchial level; dorsal surface granular, branchial regions with low striae on outer margin. Front strongly produced, sinuously trilobate; lateral lobes formed by the supra-ocular edge; rostrum dorsally with deep median sulcus extending beyond protogastric ridge; orbits shallow, nearly straight, outer orbital angle rounded, forming a shallow lobe extending to hepatic margin. Epibranchial angle distinct but without a notch or spine, continuing in a ridge along the branchial margin. Protogastric ridge, cervical grooves and regions well marked. Lateral walls with scattered, simple setae. Telson (Fig. 4 C) composed of 7 plates; lateral plates narrow; lateral margins of central plate emarginate. Basal segment of antennular peduncle (Fig. 4 B) with faint transverse rugae; anterior margin rounded, granular, with minute teeth at mesial and lateral corners. First movable segment of antenna with a lamellar, spine-tipped lobe, second with a longitudinal granular crest extending proximally into a rounded tooth, third rounded, unarmed. Chelipeds sub-equal, merus with transverse, low granules on dorsal surface; anterior margin armed distally with a prominent, spine-tipped lobe. Carpus straight, margins subparallel, about 4 - 5 times as long as broad; dorsal surface covered with small, verruciform granules; anterior margin armed with 3 - 5 irregularly-set, acute small teeth of similar size; posterior margin slightly curved outwards with larger granules forming a crest along the distal half of length extending in a prominent, curved, distal tooth. Chela large, slender, posterior margin weakly curved, unarmed; dorsal surface covered with low, spherical granules, with a low, median crest extending to the base of the dactylus; fingers unarmed, gape without or with very short pubescence. Walking legs extremely long and slender. Ischium devoid of setae or with few scattered, plumose setae. Merus devoid of setae or with few simple setae, unarmed or with a varying number (1 - 4) of irregularly-set, sharp spines along anterior margin with a prominent postero-distal spine in L 1, weakly developed or lacking in L 2, and postero-distally rounded in L 3. Carpus, propodus and dactylus with scattered, simple setae. Propodus with distal triplet of movable spinules, and one additional spine on median part of posterior margin. Dactylus with 3 movable spines on posterior margin.	en	Werding, Bernd, Hiller, Alexandra (2015): Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys 516: 95-108, DOI: http://dx.doi.org/10.3897/zookeys.516.9923, URL: http://dx.doi.org/10.3897/zookeys.516.9923
AEC023561C81BEEF240C25B1D7E51F79.taxon	distribution	Distribution. Only known from a restricted region in eastern Indonesia.	en	Werding, Bernd, Hiller, Alexandra (2015): Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys 516: 95-108, DOI: http://dx.doi.org/10.3897/zookeys.516.9923, URL: http://dx.doi.org/10.3897/zookeys.516.9923
AEC023561C81BEEF240C25B1D7E51F79.taxon	etymology	Etymology. The specific name is derived from the Latin elegans (tasteful, refined), referring to a more elegant and gracile general habitus compared with that of the related species, Petrolisthes hastatus and Petrolisthes inermis. The species name is an adjective in the nominative singular.	en	Werding, Bernd, Hiller, Alexandra (2015): Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys 516: 95-108, DOI: http://dx.doi.org/10.3897/zookeys.516.9923, URL: http://dx.doi.org/10.3897/zookeys.516.9923
