来自巴西东南部的一种新的皮氏裂虫属物种（艾亚尔和阿利昆希，1943年）（环节动物门：裂虫科）

A new species of Pisionidens (Aiyar & Alikunhi, 1943) (Annelida: Sigalionidae) from Southeastern Brazil.

作者信息

Miranda Vinícius Da Rocha, Brasil Ana Claudia Dos Santos, Santos Cinthya Simone Gomes

机构信息

Programa de Pós-Graduação em Biologia Marinha e Ambientes Costeiros, Universidade Federal Fluminense; CEP: 24020-141, Outeiro de São João Batista, Niterói, Rio de Janeiro, Brazil.; Email:

Departamento de Biologia Animal, Universidade Federal Rural do Rio de Janeiro; Caixa Postal 74524; CEP 23851-970, Seropédica, Rio de Janeiro, Brazil.; Email:

出版信息

Zootaxa. 2016 Oct 4;4173(2):114-124. doi: 10.11646/zootaxa.4173.2.2.

DOI:10.11646/zootaxa.4173.2.2

PMID:27701190

Abstract

Herein we describe specimens found along the southeastern coast of Brazil which belong to a new species, P. caissara sp. nov. This species differs from the other species of the genus by the glabrous antennae and palps, proboscis extending up to the sixth segment, jaws with smooth cutting edge and a pair of lateral wing-like sheaths, two pairs of seriate male copulatory organs, first pair of testes on segment 19 and ovaries from segment 26 onward. Reproductive characters commonly used for characterizing species are also discussed.

摘要

在此，我们描述了在巴西东南沿海发现的标本，它们属于一个新物种，即卡伊萨拉扁虫新种（P. caissara sp. nov.）。该物种与该属的其他物种不同，其触角和触须无毛，吻延伸至第六节，颚的切割边缘光滑，有一对侧翼状鞘，有两对单列的雄性交配器官，第一对睾丸位于第19节，卵巢从第26节开始。还讨论了常用于物种特征描述的生殖特征。