20.小锤钻螺

图6-20Stenogyra(Opeas)nutansmacraGredler,1892Conch.China17:7.Opeasnutansvar.macraTryon,1906Man.Conch.,2(18):164.pl.20,fig.32.OpeasnutansmacraYen,1939Abh.Senckenb.natur.Ges.,444:110,pl.10,f.72.模式标本产地湖北省兴山。形态特征贝壳稍大,壳质薄,易碎,细长,半透明而有光泽,呈 ......（本文共 664 字 , 3 张图）     [阅读本文] >>