identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03A9585EFFCAFFD35F85D3A764C2FAC7.text	03A9585EFFCAFFD35F85D3A764C2FAC7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melinnidae Chamberlin 1919	<div><p>Family Melinnidae Chamberlin, 1919</p><p>Melinninae Chamberlin, 1919: 443 . Emended Day, 1964: 103–107.</p><p>Melinnidae Stiller et al., 2020: 6, figs 4, 5; Rouse et al., 2022: 238–241.</p><p>Diagnosis. Tubicolous. Hood like prostomium lying over the buccal region, with eye spots present or absent and nuchal organs present. Retractile buccal tentacles. Peristomium clearly demarcated from an achaetous segment. Typically, with 4 pairs of tapering conical branchiae (2–3 pairs in some species) on segments 2–5, although may appear to arise from segments 2 and 3. Neuropodia on segments 2–5 with acicular chaetae, from segment 6 neuropodia with pectinate uncini. Notopodia with capillary notochaetae from segment 4 or 5 and continuing with a variable number of thoracic segments (10–16). Variable number of abdominal segments (20–90) with only neuropodia. Often with a more or less distinct membrane across dorsum at level of segments 2–3. Postbranchial dorsal recurved hooks present or absent.</p><p>Remarks</p><p>The family Melinnidae was originally a subfamily within the family Ampharetidae Chamberlin, 1919 . Day (1964) emended the diagnosis of the subfamily and provided two tables listing the characters of genera and type species in the subfamily. As Day (1964) states, many new genera have been described since Chamberlin erected the subfamily. Day (1964) emended the diagnosis to include all members that have acicular neurochaetae on segments 2–5 (Day incorrectly numbers them as present on segments 3–6) and indicated that members of this subfamily may or may not have dorsal hooks and paleae are always absent. Later, as a result of a molecular and morphological study of the Terebelliformia, Stiller et al. (2020) elevated this subfamily to a full family, although they did not formally provide a diagnosis of the new family. Subsequently Rouse et al. (2022) provided a description of the family, including morphology, physiology, natural history and systematics, but no diagnosis.</p><p>The above family diagnosis is based on Stiller et al. (2020) and Rouse et al. (2022) although there are comments in Rouse et al. (2022) such as “some species show unusual neurochaetae on anterior segments”, thus it is unclear if these characters are restricted to particular genera or not. Furthermore, Rouse et al. (2022) clearly state that all Melinnidae have straight acicular spine­like neurochaetae on 2nd to 4th or 5th segments (chaetigers 1–4) which is contradictory to the previous statement. Similarly, Rouse et al. (2022) suggest that notopodia can begin on segment 4, although usually they begin on segments 5 or 6 and it is unclear if this is a generic character or not. Rouse et al. (2022) neither indicate the segments on which the dorsal hooks occur nor the genera in which they occur. According to Holthe (1986), these hooks are present on segments 3 and 4, but Rouse et al. (2022) do not agree with the segmental numbering system of Holthe (1986) who did not recognize the achaetous segment 1, thus all Holthe’s numbering is one number out. We suggest that all the genera in this newly erected family need to be rechecked to clarify the above characters, but this is beyond the scope of this paper.</p></div>	https://treatment.plazi.org/id/03A9585EFFCAFFD35F85D3A764C2FAC7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Gunton, Laetitia M.;Zhang, William;Kupriyanova, Elena K.;Hutchings, Pat A.	Gunton, Laetitia M., Zhang, William, Kupriyanova, Elena K., Hutchings, Pat A. (2023): New Species of Melinna (Melinnidae, Annelida) from the Australian Abyss with Comments on M. albicincta, M. cristata and M. elisabethae. Records of the Australian Museum (Rec. Aust. Mus.) 75 (3): 125-154, DOI: 10.3853/j.2201-4349.75.2023.1803, URL: https://www.mendeley.com/catalogue/e8272d60-8e4e-39f2-8628-298931690154/
03A9585EFFCDFFD35FA7D6B86285FA12.text	03A9585EFFCDFFD35FA7D6B86285FA12.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melinna Malmgren 1865	<div><p>Melinna Malmgren, 1865</p><p>Diagnosis (after Mackie &amp; Pleijel, 1995). Melinnidae with 4 pairs of apinnate branchiae on segments 2–5. Single pair of postbranchial dorsal hooks on segment 3. Segments 4 to 7 forming dorsal depression, posteriorly delimited by transverse membranous fold. Eighteen pairs of thoracic chaetigers, segments 2–5 with neuropodia with slender acicular chaetae, subsequent neuropodia with uncini. Notopodia from segment 4 or 5, with capillary notochaetae. Four pairs of nephridia on segments 4–7. Abdomen with variable number of neuropodia with uncini. Pygidium lobulate, anal cirri absent.</p><p>Type species Sabellides cristata Sars, 1851 by monotypy.</p><p>Remarks. The above diagnosis is based on Mackie &amp; Pleijel (1995), but is modified with regards to segment number, as Rouse et al. (2022) state that there is an achaetous segment (segment 1) before the first chaetiger (segment 2). While the branchiae arise from segments 2–4, they appear to arise from a dorsal ridge at the level of segments 2–3, and they exhibit varying levels of basal fusion. Nephridia are on segments 4–7. With regard to the segment on which the dorsal hooks appear we do not follow Holthe (1986), instead we follow Stiller et al. (2020) and Rouse et al. (2022) to indicate that they begin on segment 3.</p><p>Earlier descriptions of Melinna species can be quite confusing regarding the numbering of segments and chaetigers. Most authors of previous descriptions have failed to recognize or neglected the anterior achaetous segment behind the peristomium, while the anterior notopodia are small and ventrally displaced so may have been missed. While the definition of Mackie &amp; Pleijel (1995) indicates that notopodia begin from segment 4 or 5, we cannot find any records of species with notopodia from segment 5, and the confusion in the literature about anterior segment numbering does not help. Table 3 lists the numbering of anterior segments which will facilitate the interpretation of earlier descriptions of species of Melinna as many lack the presence of an anterior achaetous segment.</p><p>We have also followed more recent papers in referring to segments by numbers and not by Roman numerals. Given the confusion of some species from northern Europe, including the type species of the genus Melinna, M. cristata, we have provided expanded descriptions and figures to supplement those provided by Mackie &amp; Pleijel (1995).</p></div>	https://treatment.plazi.org/id/03A9585EFFCDFFD35FA7D6B86285FA12	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Gunton, Laetitia M.;Zhang, William;Kupriyanova, Elena K.;Hutchings, Pat A.	Gunton, Laetitia M., Zhang, William, Kupriyanova, Elena K., Hutchings, Pat A. (2023): New Species of Melinna (Melinnidae, Annelida) from the Australian Abyss with Comments on M. albicincta, M. cristata and M. elisabethae. Records of the Australian Museum (Rec. Aust. Mus.) 75 (3): 125-154, DOI: 10.3853/j.2201-4349.75.2023.1803, URL: https://www.mendeley.com/catalogue/e8272d60-8e4e-39f2-8628-298931690154/
03A9585EFFCEFFDC5D35D6B96735FBE8.text	03A9585EFFCEFFDC5D35D6B96735FBE8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melinna hamulus Gunton & Zhang & Kupriyanova & Hutchings 2023	<div><p>Melinna hamulus sp. nov.</p><p>urn:lsid:zoobank.org:act: 04B34BFC-0464-4B96-B935-EC26699040F8</p><p>Figs 1, 3–5; Tables 4, 5</p><p>Melinna cf. armandia Gunton et al., 2021: 63, fig. 4D,d. Non McIntosh, 1885.</p><p>Holotype. Australian Museum (AM) W.50352, IN2017_ V03, OPS 030, Australia, Bass Strait between Tasmania and Victoria, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=149.59805&amp;materialsCitation.latitude=-39.496113" title="Search Plazi for locations around (long 149.59805/lat -39.496113)">Beam Trawl</a> (start: 39°33'07"S 149°33'11"E, 4,197 m, end: 39°29'46"S 149°35'53"E, 4,133 m), 23 May 2017; specimen posteriorly complete, although body wall damaged in a few places, 45 mm in length, 4 mm max width in thorax, muddy tube present, formalin fixed. All paratypes collected from the same location as holotype. Paratypes. AM W.50366 (1 specimen), fixed in formalin, pale yellow lacking any pigmentation, damaged in 2 pieces, anterior end 20 mm in length, 4 mm maximum width, with 14 thoracic neuropodia, plus posterior fragment to pygidium . AM W.53257 (2 specimens) fixed in formalin, one specimen 15 mm in length, plus tube, anterior portion covered in fine mud, posterior part flimsy chitinous tube, another specimen mounted for SEM AM W.53257.001 posteriorly incomplete, 25 mm in length, 4 mm maximum width . AM W.50351 (2 specimens), fixed in formalin, anterior fragment 12 mm in length, thorax 3 mm in width, plus posterior fragment, anterior fragment 5 mm in length, plus tube fragments . AM W.50732 (1 specimen), fixed in 95% ethanol, 12 mm in length, thorax complete 4 mm max width, abdomen damaged from tissue collection for molecular analysis . AM W.53871 (1 specimen), fixed in 95 % ethanol, damaged posterior thorax, max width 4 mm and anterior abdomen with posterior abdomen intact with 40 + segments, with tube . AM W.53872 (1 specimen), fixed in 95 % ethanol, sequenced, anterior thorax, max width 4.5 mm, l35+ abdominal segments . AM W.50353 (1 specimen), thorax max width 4 mm plus separated abdomen, abdomen damaged from tissue collection for molecular analysis . AM W.50382 (1 specimen), fixed in 95% ethanol, posteriorly incomplete, abdomen damaged from tissue collection for molecular analysis, max width 3 mm . AM W.50354 (2 specimens), fixed in formalin, 1 specimen complete with regenerating posterior end, but mid body damaged, 30 mm in length, 3 mm max width, tube present with damaged posterior end, other incomplete, only thorax 7 mm in length, max width 3 mm . AM W.50383 (1 specimen), fixed in formalin, thorax only, 12 mm in length, 4 mm max width . AM W.53880 (1 specimen), fixed in formalin, in two pieces, anterior part 16 mm in length, max width 4 mm, plus posterior part 13 mm in length . AM W.53881 (1 specimen), fixed in formalin, posteriorly incomplete, 12 mm in length, max width of thorax 3 mm, plus tube .</p><p>Other material examined. Melinna albicincta (NMWZ 1989­ 125­22, NMWZ 1989­125­26); M. cristata (AM W.21791); M. elisabethae (AM.W.21793) for comparative purposes, details given for each under the expanded descriptions of each of these species.</p><p>Description</p><p>Description based on holotype with variation observed among paratypes indicated. Prostomium with well­defined anterior and posterior parts, separated by pair of transverse nuchal slits (Fig. 3F), anterior part distally trilobed, followed by achaetous segment forming a glandular collar dorsally with smooth margin (Fig. 3B,F). Buccal tentacles almost completely withdrawn with tips exposed (Figs 3F, 4A,B). Lateral wings of anterior body between prostomium and segment 5 highly arched (Fig. 3A,B,C). First four segments glandular, subsequent seven segments with discrete ventral glandular shields (Figs 3C, 4A,C). Four pairs of smooth branchiae on segments 2–5, although appearing to arise on a dorsal ridge on segments 2 and 3, arranged two in front and two behind. Completely separated from each other. All branchia similar in both width and length, tapering to fine tips distally and having slightly swollen bases with slightly crenulated surfaces (Fig. 4F,G,I). Branchia circular in cross section. Incomplete dorsal membranous fold on segment 4 (Fig. 3B,C). Postbranchial dorsal membrane with 13 (17) triangular lobes or projections, all similar in size, except for the slightly larger middle one, some bilobed, and middle larger one with small lateral lobes at base so appearing as tricorn (Figs 3A,B, 4F,G).Pair of short dorsal curved hooks, pale yellow with darker slightly curved pointed tip, base triangular (one missing on holotype), no canal inside tooth visible (Figs 3B,b, 4H,I). Segmentation visible dorsally in postbranchial area. No visible nephridial papillae.Capillary notochaetae present in 23 thoracic chaetigers starting from segment 4. First notopodia (segment 4) very small. Following notopodia inserted more laterally (Figs 3A, 4C), becoming progressively larger and reaching maximum size by segment 8 (Fig. 3B). Subsequent notopodia (from segment 8 onwards) continuing for 15 segments. Notopodia well­developed, each bearing paired notopodial lobes and long golden capillary notochaetae (Figs 4D,E, 5D). Notochaetae arranged in two tiers of capillary chaetae (Figs 4D,E, 5D). Abdominal notochaetae lacking. Small, rounded projections evident in notopodial positions, no cilia observed (Fig. 3D). Neurochaetae as an elongated row of simple acicular short spines on slightly raised glandular ridge and inserted progressively more dorsally from segment 2–5 (Fig. 3A,B). Neuropodia with pectinate uncini from segment 6, present in 21 pairs of thoracic uncinigers (to end of abdomen, segment 26). Numbers of pairs of abdominal neuropodia 45, based on AM W.53257. Abdominal neuropodia elongate and basally swollen, without any rudimentary notopodia (Fig. 5E,G). Thoracic uncini from segment 6 with 30 uncini within a row. Abdominal neuropodia with 31 uncini in torus. Dentition of uncini within a row varies slightly (Fig. 5F,H). Thoracic uncini avicular with two teeth in a vertical row over rostral tooth, sub­rostral process and basal prow (Figs 3G, 5A,B,C). Side of uncini with marked ornamentation (Fig. 5C). Abdominal uncini with conspicuous long tendons attaching them to body and visible through body wall. Uncini arranged on elevated neuropodia in curved row (Fig. 5E,G). Uncini with four to six teeth (Fig. 5F,H). Posterior segments compacted, none of the paratypes complete. Pygidium with two lateral lobes and 4–5 smaller lobes surrounding them (Fig. 3H). No anal cirri present.</p><p>Tube. Composed of fine­grained sediment and lined with a thin, stiff clear membrane. Length of tube at least 2 times specimen (Fig. 3E).</p><p>Methyl blue staining pattern. Use of methyl blue staining reveals strong staining of the prostomium and segments 1–4, branchiae lightly speckled at tips and transverse rings at bases. Stained band behind dorsal membrane from segments 5–6. Light staining elsewhere on thorax and on abdomen. Light staining on ventral shields, staining stronger laterally on shields.</p><p>Remarks</p><p>Melinna hamulus sp. nov. is characterized by the following characters: around 45 abdominal segments, dorsal membrane with 13–17 triangular projections, four pairs of branchiae completely free, one pair of curved dorsal hooks with pointed tips lacking a canal, and a pygidium with two large lateral lobes surrounded by four or five smaller lobes, which distinguishes it from all other described species where the data are available (Table 5). We compare the morphological characters along with type locality and depth of our new species with the other currently accepted 26 species of Melinna (Tables 4, 5).</p><p>Gunton et al. (2021) recorded this species as M. cf. armandi McIntosh, 1885, which was originally described from west of North Island, New Zealand in a depth of 2,012 m. However, while having a similar number of abdominal segments, M. armandi has the dorsal membrane with only eight large projections, far fewer than in the new species (13–17) and the dorsal hooks have a distinct canal which is absent in M. hamulus sp. nov. The only other Melinna species recorded in the region is M. arnaudi Parapar &amp; San Martín, 1997 from Livingston Island in Antarctica from 104–422 m, which has 72 abdominal chaetigers and so easily distinguished from M. hamulus sp. nov., which has 45 abdominal segments and occurs below 4,000 m depth.</p><p>Type locality and habitat. Bass Strait, SE Australia, 4,133– 4,197 m, no sediment data was collected due to gear failure.</p><p>Etymology. The new species is named hamulus meaning little hook in Latin, a reference to the small dorsal hooks of this new species.</p></div>	https://treatment.plazi.org/id/03A9585EFFCEFFDC5D35D6B96735FBE8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Gunton, Laetitia M.;Zhang, William;Kupriyanova, Elena K.;Hutchings, Pat A.	Gunton, Laetitia M., Zhang, William, Kupriyanova, Elena K., Hutchings, Pat A. (2023): New Species of Melinna (Melinnidae, Annelida) from the Australian Abyss with Comments on M. albicincta, M. cristata and M. elisabethae. Records of the Australian Museum (Rec. Aust. Mus.) 75 (3): 125-154, DOI: 10.3853/j.2201-4349.75.2023.1803, URL: https://www.mendeley.com/catalogue/e8272d60-8e4e-39f2-8628-298931690154/
03A9585EFFC2FFDA5FBDD5CB65D0F81F.text	03A9585EFFC2FFDA5FBDD5CB65D0F81F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melinna cristata (M. Sars 1851) ZMBN	<div><p>Melinna cristata (Sars, 1851)</p><p>Figs 9–12; Tables 4, 5</p><p>Sabellides cristata M. Sars, 1851: 205–206; 1856: 19–23, pl. 2, fig. 1–7.</p><p>Melinna albicincta Mackie &amp; Pleijel, 1995</p><p>Melinna cristata Malmgren, 1866: 371–372, pl. 20, fig. 50.</p><p>For complete synonymy see Mackie &amp; Pleijel, 1995.</p><p>Figs 6–8; Tables 4, 5</p><p>Material examined. AM W.21791, 3 specimens, including one prepared for SEM (AM W.21791.001), west of <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=11.0&amp;materialsCitation.latitude=59.0" title="Search Plazi for locations around (long 11.0/lat 59.0)">Salto</a>, Kosterfjord, Sweden (59°00'N 11°00'E), mud, 110 m, coll. A. S. Mackie &amp; F. Pleijel, 26 October 1989 .</p><p>Melinna albicincta Mackie &amp; Pleijel, 1995: 116–120, fig. 3, 5, table 1.</p><p>Material examined. Paratypes NMWZ1989­125 ­ 26, one mounted for SEM, NMWZ1989­125 ­ 22, type locality <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=11.1050005&amp;materialsCitation.latitude=58.875" title="Search Plazi for locations around (long 11.1050005/lat 58.875)">Southwest of Yttre Vattenholmen</a>, Kosterfjord, Sweden (58°52'30"N 11°06'18"E), sand/mud/gravel, dredged from 60–80 m, coll. A.S. Mackie &amp; F. Pleijel, 28 October 1989 . AM W.21794, 1 specimen, collected same locality, same date, same collectors, sandy mud/stones/gravel, 40–50 m, dredge. In Mackie &amp; Pleijel, 1995 this paratype is listed as AM W.21791, this is incorrect, the correct registration number for this specimen is AM W.21794.</p><p>Remarks</p><p>The redescription by Mackie &amp; Pleijel (1995) only provided line drawings, here we give additional information based on light and SEM photographs.</p><p>Prostomium with well­defined anterior and posterior parts followed by an achaetous segment 1 with anterior elevated margin (Fig. 9A,B). Segments 2–5 with short row of acicular neurochaetae progressively becoming more laterally inserted (Fig. 9B). From segment 6 onwards neuropodia with uncini on raised tori (Fig. 11D). Notopodia present from segment 4 (chaetiger 3), very small with few notochaetae, gradually increasing in size and becoming conspicuous and laterally arranged by segment 7 onwards (Figs 9D, 10G, 11D, 12A,B,C). Notopodia bearing two tiers of notochaetae with finely spinulose surface (Fig. 11A,B). Dorsal membrane with at least 8 equal triangular projections (Figs 10B, 11C). A single pair of slightly curved dorsal hooks with prominent internal canal (Fig. 10B,C,D,E). Four pairs of branchiae (Fig. 10A,E), annulated with distinct longitudinal bands of cilia (Fig. 10F) and fused basally for about 10% of their length (Figs 9C,D, 10A,E, 11D). Thoracic neuropodia (Fig. 11D,E) raised, glandular tori with over 40 uncini, uncini with a single row of 3–4 teeth and a sub­rostral ornamented process (Fig. 11F,G). Rudimental notopodia on the abdomen as small rounded projections (Fig. 9F). Abdominal segments with elevated neuropodia decreasing in size posteriorly (Fig. 9E). Abdominal uncini with rostral tooth surrounded by strongly denticulated head (Fig. 12D,E). Pygidium with terminal anus, bounded by glandular lobes (Figs 9E,e, 12F,G) with no anal cirri. Methyl blue staining shows extensive ventral and lateral thoracic glandular areas (Fig. 9A,E). No tube present.</p><p>Remarks</p><p>The original description only provided line drawings, here we give additional information based on light and SEM photographs.</p><p>Prostomium with two elongate transverse nuchal slits (Fig. 6A,B). The first segment achaetous, forming a ventral collar with an elevated crenulated anterior margin (Fig. 6D). Segments 2, 3, 4 and 5 with neurochaetae as short acicular spines with neuropodia becoming more lateral, on segment 6 elongated raised tori with neurochaetae as uncini (Figs 6D, 7B). First notopodia on segment 4, very small with short capillary chaetae, and gradually becoming more dorsal and better developed by segment 6 with two tiers of capillary chaetae (as seen in chaetiger 11, Fig. 7C). This numbering of anterior segments differs from that given by Mackie &amp; Pleijel (1995) as they did not recognize an achaetous segment 1 which forms a ventral glandular collar (Fig. 6D). Pair of short dorsal curved hooks (Fig. 6E, F). Four pairs of elongate branchiae ending in tapered pointed tips (Fig. 6A,D,E), with inner and anterior most pair basally fused (35–40%) (Figs 6E, 7E,F); two conspicuous white bands present on inner pairs (Fig. 6A,B) but absent on other branchiae. Segment 5 with dorsal membrane (Fig. 7E) bearing large number of small projections. Larger mid­dorsal papilla beneath dorsal membrane (Figs 6E, 7E,F), as also shown in Fig. 5A of Mackie &amp; Pleijel (1995). Ventrum with anterior margins of segments elevated and glandular (Fig. 7A). Notopodia with elevated lobes and notochaetae arranged in two tiers (Fig. 8A,D). Anterior neuropodia forming raised tori with uncini arranged in a curved row (Fig. 7B), with four teeth in longitudinal row on chaetiger 11 and 13 (Figs 7D, 8B respectively). Rudimental notopodia on the abdomen as small rounded projections (Fig. 6C). Mid­ and posterior neuropodia becoming increasingly elevated (Fig. 8A,F). Abdominal uncini with four teeth in a longitudinal row (Fig. 8B,C,E). Pygidium with terminal anus and surrounded by a pair of large lateral lobes and a number of smaller ones (Fig. 8F). Living in muddy tube with attached shell fragments (Fig. 6G).</p><p>This numbering of anterior segments differs from that given by Mackie &amp; Pleijel (1995) as they did not recognize an achaetous segment 1 forming a ventral glandular collar (Fig. 11D).</p></div>	https://treatment.plazi.org/id/03A9585EFFC2FFDA5FBDD5CB65D0F81F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Gunton, Laetitia M.;Zhang, William;Kupriyanova, Elena K.;Hutchings, Pat A.	Gunton, Laetitia M., Zhang, William, Kupriyanova, Elena K., Hutchings, Pat A. (2023): New Species of Melinna (Melinnidae, Annelida) from the Australian Abyss with Comments on M. albicincta, M. cristata and M. elisabethae. Records of the Australian Museum (Rec. Aust. Mus.) 75 (3): 125-154, DOI: 10.3853/j.2201-4349.75.2023.1803, URL: https://www.mendeley.com/catalogue/e8272d60-8e4e-39f2-8628-298931690154/
03A9585EFFDAFFC45CC6D6B96770F8DB.text	03A9585EFFDAFFC45CC6D6B96770F8DB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melinna elisabethae McIntosh 1885	<div><p>Melinna elisabethae McIntosh, 1885</p><p>Figs 13–15; Tables 4, 5</p><p>Melinna elisabethae McIntosh, 1885: 438; 1914 106–107 (in part).</p><p>For complete synonymy see Mackie &amp; Pleijel, 1995.</p><p>Material examined. AM W.21793, 4 specimens, including prepared for SEM, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-1.8&amp;materialsCitation.latitude=54.6" title="Search Plazi for locations around (long -1.8/lat 54.6)">Cleveland</a>, Tees Bay, England (54°36'N 1°48'W), gravelly mud/rock, 44 m, coll. Analytical &amp; Environmental Services, 7 September 1984 .</p><p>Remarks</p><p>The original description by Mackie &amp; Pleijel (1995) only provided line drawings, we give additional information based on light and SEM images.</p><p>Prostomium well­developed and divided into anterior and posterior parts, anterior part trilobed (Fig. 15B), posterior part raised triangular glandular with anterior margin bearing longitudinal slits (Fig. 15B). Buccal tentacles numerous and equal in length to the branchiae (Fig. 13B). Four pairs of branchiae annulated with distal surface exhibiting cilia patches (Fig. 14A,C). Branchiae circular in cross­section, anterior pair showing 40% of basal fusion and outer pair 20% fusion (Figs 13B,C, 14C). One pair of dorsal hooks strongly curved and with pointed tips (Figs 13B,D,E, 14B,C), solid without internal canal. Dorsal membrane with about 12 triangular projections on anterior margin (Figs 13E, 14A). First segment achaetous (Fig. 14A) with crenulated ventral margin (Fig. 15B). Segments 2–5 with acicular neurochaetae arranged in elongated tori, progressively inserted more laterally (Fig. 13B,C). From segment 6 neuropodia with uncini continuing to pygidium. Notopodia present from segment 4, initially very small with short notochaetae, then progressively becoming larger, more laterally inserted and well­developed by segment 7 (Figs 13D, 14A, 15C) and on all subsequent ones. Notochaetae arranged in two tiers (Fig. 14H) with tips of longer ones curved (Fig. 15A) and with blades finely ornamented (Figs 14F,H, 15A,E). Notopodia globular with posterior lobe longer than anterior one (Fig. 14D,E,F) and well separated from neuropodia (Figs 14E, 15C). Thoracic neuropodia raised glandular tori slightly curved, bearing about 26 uncini (Fig. 14E). Thoracic uncini with a single row of four teeth with ornamentation on lateral face and becoming marked and behind anterior tooth strongly ornamented with small teeth (Figs 14G, 15D,F). Abdominal rudimentary notopodia not observed as in Mackie &amp; Pleijel (1995), specimens very small and thin (Fig. 15G).Abdominal neuropodia well­developed but not elevated, anteriorly bearing four teeth arranged in a single row (Fig. 15H,I). Terminal anus bounded by pair of large lateral lobes and several smaller lateral ones (Fig. 13a) and lacking anal cirri. Methyl blue stain shows extensive ventral glandular areas (Fig. 13F). Tube with attached shell fragments on anterior end and rest of tube made of smaller sand grains and mud (Fig. 13G).</p></div>	https://treatment.plazi.org/id/03A9585EFFDAFFC45CC6D6B96770F8DB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Gunton, Laetitia M.;Zhang, William;Kupriyanova, Elena K.;Hutchings, Pat A.	Gunton, Laetitia M., Zhang, William, Kupriyanova, Elena K., Hutchings, Pat A. (2023): New Species of Melinna (Melinnidae, Annelida) from the Australian Abyss with Comments on M. albicincta, M. cristata and M. elisabethae. Records of the Australian Museum (Rec. Aust. Mus.) 75 (3): 125-154, DOI: 10.3853/j.2201-4349.75.2023.1803, URL: https://www.mendeley.com/catalogue/e8272d60-8e4e-39f2-8628-298931690154/
