基于骨骼特征的2种深海六放海绵的描述

A description of two deep-sea Hexactinellida(Porifera) based on their skeletal structure

作者记述了两种深海海绵薄管海绵属一种(Chonelasma sp.)和绢网海绵科一种(Farreidae sp.),其中薄管海绵属为新记录属。由于采集时海绵已经死亡,骨针脱离海绵,只具有骨骼形态,缺乏骨针形态,所以两种海绵只能鉴定到属或科。薄管海绵属一种(Chonelasma sp.)隶属于真网海绵科(Euretidae),薄管海绵属(Chonelasma),由"蛟龙号"于2013年7月7日采集于南海3 551 m处。绢网海绵科一种Farreidae sp.隶属于绢网海绵科(Farreidae),由"科学号"于2014年4月18日采集于冲绳海槽1 190 m处。文中描述了两个种的外部形态特征和骨骼形态,丰富了中国六放海绵纲(Hexactinellida)的研究资料。

Two deep-sea Hexactinellida species, Chonelasma sp. and Farreidae sp., are described herein. Chonelasma sp. is a new genus record in China. Its classification was restricted to genus level due to the lack of preserved spicules. Chonelasma sp. （Hexactinosida： Sceptrulophora： Euretidae） samples were collected by the ＂Jiaolong＂ submersible in the South China Sea on July 07, 2013. Farreidae sp. （Hexactinosida： Sceptrulophora： Farreidae） samples were collected by the ＂RV Faxian＂ at Okinawa Trough on April 18, 2014. The external morphology and skeletal structure of both the species is described herein. These detailed descriptions provide important new information to the research of Hexactinellida in China.