来自秘鲁的新哈马坎塔海绵属以及作为亚属的齐格佩海绵属的重新确立（寻常海绵纲，硬骨海绵目，哈马坎塔海绵科）

New Hamacantha from Peru and resurrection of Zygherpe as subgenus (Demospongiae, Poecilosclerida, Hamacanthidae).

作者信息

Hajdu Eduardo, Hooker Yuri, Willenz Philippe

机构信息

Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, s/n, 20940-040, Rio de Janeiro, RJ, Brazil.; Email:

Laboratório de Biologia Marina, Facultad de Ciências y Filosofia, Universidad Peruana Cayetano Heredia, Calle Honório Delgado 430, Lima 31, Lima, Peru.; Email:

出版信息

Zootaxa. 2015 Mar 4;3926(1):87-99. doi: 10.11646/zootaxa.3926.1.3.

DOI:10.11646/zootaxa.3926.1.3

PMID:25781769

Abstract

Two species of Hamacantha with tylostyles are reported here for the Peruvian coast, namely H. desmacelloides sp.nov. and H. hyaloderma. The former is the first species in the genus with apically microspined sigmas, similar to those known to occur in Neofibularia, and recently reported from genera Biemna, Desmacella, Rhabderemia and Sigmaxinella. Hamacantha hyaloderma was previously known from Mexico to Canada, and is here reported for the first time from the south east Pacific. The finding of a second species with tylostyles led us to reinstate subgenus Hamacantha (Zygherpe). The possible phylogenetic significance of apically microspined sigmas is discussed in view of recent findings on the basis of molecular data.

摘要

本文报道了秘鲁海岸两种具柱状刺丝囊的哈马坎塔属（Hamacantha）物种，即新物种纤细哈马坎塔（Hamacantha desmacelloides）和透明哈马坎塔（Hamacantha hyaloderma）。前者是该属首个具顶端微刺状轴丝体的物种，类似于在新纤维海绵属（Neofibularia）中已知的那些，并且最近在比埃姆纳属（Biemna）、德氏海绵属（Desmacella）、横纹海绵属（Rhabderemia）和西格马克西内拉属（Sigmaxinella）中也有报道。透明哈马坎塔此前已知分布于从墨西哥到加拿大的区域，本文首次报道其在东南太平洋的发现。第二个具柱状刺丝囊物种的发现促使我们恢复哈马坎塔亚属（Hamacantha (Zygherpe)）。鉴于基于分子数据的最新发现，讨论了顶端微刺状轴丝体可能的系统发育意义。