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Paramblyops brevirostris O. S. Tattersall 1955

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Zenodo2024-06-24 更新2024-06-22 收录
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Paramblyops brevirostris O.S. Tattersall, 1955 Paramblyops brevirostris O.S. Tattersall, 1955: 112–113, fig. 25. Paramblyops brevirostris – Ledoyer 1990: 40, fig. 2b (morphology, Antarctic record with query). — Ariani et al. 1993: table 1 (mineral composition of statoliths). — Wittmann 1996: fig. 1f (Antarctic record). — Brandt et al. 1998: table i (biogeography, endemism). — Murano 2002a: table 1 (morphology, taxonomy). — San Vicente et al. 2006: table 2 (records in Southern Ocean). — San Vicente 2010: 60 (in key to Antarctic species). — Petryashov 2014a: 150, map 10 (biogeography, Antarctic distribution). — Wittmann & Ariani 2019: suppl. (statolith composition, biogeography). — Mees & Meland 2024: AphiaID 226324 (accepted). Material examined SOUTHERN OCEAN • 1 imm. (damaged, BL = 14.2 mm); eastern Weddell Abyssal Plain, S of Maud Rise and E of Sanae Canyon, ANDEEP-III station 059-5; 67°29.74ʹ S, 00°01.93ʹ W to 67°29.61ʹ S, 00°02.19ʹ W; depth 4655– 4655 m; 14 Feb. 2005; EBS supranet • 1 ♀ ad. (damaged, BL = 32.2 mm); eastern Weddell Slope, Kapp Norvegia, ANDEEP-III station 081-8; 70°32.02ʹ S, 14°35.05ʹ W to 70°32.19ʹ S, 14°35.13ʹ W; depth 4392– 4385 m; 24 Feb. 2005; EBS epinet • 1 ♂ ad. (damaged, BL = 33.8 mm); same collection data as for preceding except for occurrence in supranet • 1 juv. (BL = 6.6 mm); Weddell Slope, entrance to Powell Basin, ANDEEP-III station 121-10; 63°37.73ʹ S, 50°38.09ʹ W to 63°37.55ʹ S, 50°38.37ʹ W; depth 2663– 2659 m; 15 Mar. 2005; EBS supranet • 1 juv. (BL = 3.1 mm); Powell Basin, SW continental slope of South Orkney Islands, ANDEEP-III station 150-6; 61°48.70ʹ S, 47°28.04ʹ W to 61°48.57ʹ S, 47°28.19ʹ W; depth 1996– 1993 m; 20 Mar. 2005; EBS epinet. Morphological notes Short, broadly subtriangular to about rectangular, apically narrowly rounded rostrum. Disto-lateral edge of eye rudiments forming a short, tooth-like, non-sensory projection; no ocular papilla. Organ of Bellonci in basal position. Antennular trunk with five barbed setae on disto-median lobe, no tooth. Trunk with well-developed antennular bursa, no female antennular lobe, no callynophore. Type locality and distribution The type locality is Chollaert Channel, Palmer Archipelago. According to Article 76.1 of the ICZN (1999) the type locality encompasses both detailed localities of the syntypes specified by O.S. Tattersall (1955), namely Discovery stations no. 181 (64°20ʹ S, 63°01ʹ W, depth 160–335 m) and no. 182 (64°21ʹ S, 62°58ʹ W, depth 278–500 m) as long as no lectotype is defined; the coordinates are taken from the Discovery Committee (1929). Combined data by Petryashov (2006) and San Vicente (2010) give the distribution of this species as the South Shetland Islands, Antarctic Peninsula, Weddell Sea and Bellingshausen Sea, 65° S – 72° S, depth 160–529 m, not including the unsure record by Ledoyer (1990) in the Weddell Sea at 74° S at depths of 1996–2012 m. The present records from the Powell Basin and the Weddell Sea at 62° S – 71° S obtained on the sea floor at depths of 1991–4655 m mean a strong vertical range extension. Accordingly, the species appears to be circum-Antarctic with proven range of 62° S – 72° S, 160–4655 m.

短吻副钝眼钩虾(Paramblyops brevirostris)O.S. Tattersall, 1955 短吻副钝眼钩虾(Paramblyops brevirostris)O.S. Tattersall, 1955:112–113,图25。 ——Ledoyer 1990:40,图2b(形态学研究,附有存疑的南极分布记录)。 ——Ariani等1993:表1(平衡石矿质组成)。 ——Wittmann 1996:图1f(南极分布记录)。 ——Brandt等1998:表i(生物地理学与特有性研究)。 ——Murano 2002a:表1(形态学与分类学研究)。 ——San Vicente等2006:表2(南大洋分布记录)。 ——San Vicente 2010:60(收录于南极物种检索表)。 ——Petryashov 2014a:150,图10(生物地理学与南极分布格局)。 ——Wittmann与Ariani 2019:补充材料(平衡石组成与生物地理学研究)。 ——Mees与Meland 2024:AphiaID 226324(为该物种的有效学名)。 检视标本 南大洋 • 1头幼体(损伤,体长(body length,简称BL)=14.2 mm);威德尔海深海平原东部,莫德隆起以南、萨纳海峡谷以东,ANDEEP-III第059-5号站位;坐标:67°29.74′ S,00°01.93′ W 至 67°29.61′ S,00°02.19′ W;水深4655–4655 m;2005年2月14日;EBS超网 • 1头成年雌性(损伤,BL=32.2 mm);威德尔海斜坡东部,克普诺尔维吉亚湾,ANDEEP-III第081-8号站位;坐标:70°32.02′ S,14°35.05′ W 至 70°32.19′ S,14°35.13′ W;水深4392–4385 m;2005年2月24日;EBS上层底栖网 • 1头成年雄性(损伤,BL=33.8 mm);采集信息与前述雌性标本一致,仅采样网具为超网 • 1头幼体(BL=6.6 mm);威德尔海斜坡,鲍威尔盆地入口处,ANDEEP-III第121-10号站位;坐标:63°37.73′ S,50°38.09′ W 至 63°37.55′ S,50°38.37′ W;水深2663–2659 m;2005年3月15日;EBS超网 • 1头幼体(BL=3.1 mm);南奥克尼群岛西南大陆坡鲍威尔盆地,ANDEEP-III第150-6号站位;坐标:61°48.70′ S,47°28.04′ W 至 61°48.57′ S,47°28.19′ W;水深1996–1993 m;2005年3月20日;EBS上层底栖网 形态学注释 短而宽的亚三角形至近矩形额突,顶端窄圆。眼原基的远侧边缘具短齿状、非感觉性突起;无眼乳突。贝洛尼器(Organ of Bellonci)位于基部。第一触角柄节远中叶具5根具刺刚毛,无齿。躯干部具发达的触角囊,雌性无触角叶,亦无爪状突(callynophore)。 模式产地与分布范围 模式产地为乔勒尔特海峡,帕尔默群岛。根据国际动物命名法规(International Commission on Zoological Nomenclature,简称ICZN)1999年版第76.1条,在未选定选模标本的情况下,模式产地涵盖O.S. Tattersall(1955)指定的同模标本的两个详细采集地,即“发现号”考察站第181号(64°20′ S,63°01′ W,水深160–335 m)与第182号(64°21′ S,62°58′ W,水深278–500 m),上述坐标引自“发现委员会”(1929)的记录。结合Petryashov(2006)与San Vicente(2010)的综合数据,该物种的分布范围为南设得兰群岛、南极半岛、威德尔海与别林斯高晋海,纬度65° S –72° S,水深160–529 m,不包括Ledoyer(1990)存疑的威德尔海74° S、水深1996–2012 m的记录。本次在鲍威尔盆地与威德尔海获得的分布记录(纬度62° S –71° S,水深1991–4655 m)大幅拓展了该物种的垂直分布范围。据此推测,该物种为环南极分布,已知分布范围为62° S –72° S,水深160–4655 m。

提供机构:
Wittmann, Karl J.
创建时间:
2024-06-21
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