来自巴西的两种新的地下哈氏钩虾属物种（1874年，史密斯命名；甲壳纲：端足目：哈氏钩虾科）

Two new subterranean species of Hyalella Smith, 1874 (Crustacea: Amphipoda: Hyalellidae) from Brazil.

作者信息

Cardoso Giovanna Monticelli, Araujo Paula Beatriz, De Pádua Bueno Alessandra Angélica, Ferreira Rodrigo Lopes

机构信息

Laboratório de Carcinologia, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul; Programa de Pós-Graduação em Biologia Animal, Av. Bento Gonçalves, Nº 9500 prédio 43435, 91501-970, Porto Alegre, Rio Grande do Sul, Brazil; Email:

出版信息

Zootaxa. 2014 Jun 10(3814):353-68. doi: 10.11646/zootaxa.3814.3.3.

DOI:10.11646/zootaxa.3814.3.3

PMID:24943433

Abstract

Two new species of Hyalella from Brazil are described. Hyalella veredae sp. n. shows the following characters: eyes reduced or absent in some specimens; antenna 1 and antenna 2 of similar size, and a curved seta on the inner ramus of male uropod 1. Hyalella formosa sp. n. is characterized by the absence of eyes, antenna 1 longer than antenna 2 and a curved seta on the inner ramus of male uropod 1. The species were found on caves located in two private properties, both under the impact of agricultural activities, which demonstrates a potential threat to these subterranean environments.

摘要

描述了来自巴西的两种新的溪蟹属物种。韦氏溪蟹新种具有以下特征：部分标本眼睛缩小或缺失；第一触角和第二触角大小相似，雄性第一尾足内肢有一根弯曲刚毛。美丽溪蟹新种的特征是无眼，第一触角比第二触角长，雄性第一尾足内肢有一根弯曲刚毛。这些物种发现于两处私人地产的洞穴中，两处均受到农业活动的影响，这表明对这些地下环境存在潜在威胁。