圖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.模式標(biāo)本產(chǎn)地湖北省興山。形態(tài)特征貝殼稍大,殼質(zhì)薄,易碎,細(xì)長(zhǎng),半透明而有光澤,呈 (共 664 字) [閱讀本文] >>