Atlantiphoxus wajapi n.gen.，n.sp.（甲壳纲：两栖纲：Phoxocephalidae），一种来自西南大西洋的新型深海两栖动物

IF 0.8 4区生物学 Q4 MARINE & FRESHWATER BIOLOGY

Scientia Marina Pub Date : 2020-05-28 DOI:10.3989/scimar.05001.16a

L. F. Andrade, A. Senna

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引用次数: 3

摘要

本文描述了在巴西东南海岸巴西里约热内卢州和圣保罗州224米和500米深度的小型生物拖网项目中收集到的一个新属和新种Phoxocephalidae科。Atlantiphoxus wajapi n. gen.， n. sp.可归入Phoxocephalinae亚科，在形态上与Fuegiphoxus Barnard and Barnard(1980)和Parharpinia Stebbing(1899)接近。但是，在磷头类中，可以通过以下特征很容易地加以区分:具有小髋部的深层peronite;讲坛unconstricted;眼睛缺席;人可食的臼齿不滋养，但作为一小驼峰具3具多穗状粗刚毛;准足目动物3-4具粗趾;准足目5基，上部逐渐变细;准足类7基前远端角具一排长羽状刚毛;扬抑抑格拉长。外板3后腹缘结实。

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Atlantiphoxus wajapi n. gen., n. sp. (Crustacea: Amphipoda: Phoxocephalidae), a new deep-sea amphipod from the southwestern Atlantic

A new genus and species of the family Phoxocephalidae is here described with material collected during the Mini Biological Trawl Project at 224 and 500 m depth off Brazil’s southeastern coast in the states of Rio de Janeiro and Sao Paulo. Atlantiphoxus wajapi n. gen., n. sp. can be grouped in the subfamily Phoxocephalinae and seems to be morphologically close to Fuegiphoxus Barnard and Barnard, 1980 and Parharpinia Stebbing, 1899. However it can be easily distinguished within the phoxocephalids by the following characters: deep pereonites with small coxae; rostrum unconstricted; eyes absent; mandible molar not triturative, but as a small hump with 3 multicuspidate stout setae; pereopods 3-4 with stout dactylus; pereopod 5 basis strongly tapering distally; pereopod 7 basis anterodistal corner with a row of long plumose setae; dactylus elongate. Epimeral plate 3 posteroventral margin strongly produced.

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来源期刊

Scientia Marina 生物-海洋与淡水生物学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Scientia Marina is the successor to Investigación Pesquera, a journal of marine sciences published since 1955 by the Institut de Ciències del Mar de Barcelona (CSIC). Scientia Marina is included in the Science Citation Index since 1998 and publishes original papers, reviews and comments concerning research in the following fields: Marine Biology and Ecology, Fisheries and Fisheries Ecology, Systematics, Faunistics and Marine Biogeography, Physical Oceanography, Chemical Oceanography, and Marine Geology. Emphasis is placed on articles of an interdisciplinary nature and of general interest.