三种新的 Levinsenia Mesnil, 1897（环节动物：Paraonidae）物种，来自西南大西洋的浅水区和深水区。

Three new species of Levinsenia Mesnil, 1897 (Annelida: Paraonidae) from shallow and deep waters of Southwestern Atlantic Ocean.

机构信息

Laboratório de Poliquetologia, Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil.

Laboratório de Annelida, Instituto de Biologia, Universidade Federal da Bahia, Salvador, BA, Brazil.

出版信息

PLoS One. 2020 Dec 31;15(12):e0244741. doi: 10.1371/journal.pone.0244741. eCollection 2020.

DOI:10.1371/journal.pone.0244741

PMID:33382806

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7775102/

Abstract

Three new species of Levinsenia were collected during a benthic survey, from 10-3,000 m deep, in Espírito Santo Basin, off the southeastern Brazilian coast. These species are L. paivai sp. nov., L. blakei sp. nov. and L. lesliae sp. nov. Members of L. paivai sp. nov. are recognized by the presence of nine pairs of well-developed and heavily ciliated branchiae, those of L. blakei sp. nov. are characterized by the presence of three pairs of small branchiae, and those of L. lesliae sp. nov., by the absence of branchiae and presence of notopodial transitional chaetae. These new species are described herein and compared to the most similar congeners. These are the first new species of Levinsenia described from off the Brazilian coast.

摘要

在对东南巴西海岸埃斯皮里图桑托盆地的深海（水深 10-3000 米）进行的底栖生物调查中，采集到了三个 Levinsenia 的新种。这些物种是 Levinsenia paivai sp. nov.，Levinsenia blakei sp. nov. 和 Levinsenia lesliae sp. nov. Levinsenia paivai sp. nov. 的成员通过存在九对发育良好且多纤毛的鳃来识别，Levinsenia blakei sp. nov. 的特征是存在三对小鳃，而 Levinsenia lesliae sp. nov. 的特征是没有鳃和存在前刚毛过渡刺。本文对这些新物种进行了描述，并与最相似的近缘种进行了比较。这些是首次从巴西海岸描述的 Levinsenia 新种。