中国苔藓动物新亚种和新纪录(唇口目:筛孔苔虫科)

NEW SUBSPECIES AND NEW RECORDS OF ECTOPROCTA FROM CHINA (CHEILOSTOMATA : CRIBRILINIDAE)

本文记述中国苔藓动物一新亚种:强似膜孔苔虫舟山亚种;三新纪录:平壁托孔苔虫、楯扇孔苔虫、扇形管孔苔虫的形态特征,采集地及分布。新亚种并与近似种作了比较。

In recent studies of Chinese Bryozoa, a new subspecies was found in the material collected from the East China Sea,Zhoushan Archipelago. The type spe- cimens are deposited in the Department of Biology, Hangzhou University. Membraniporalla aragoi zhoushanica, subsp.nov. Holotype:No. C74 collected from intertidal zone in the Pudo Island on June 1957.Paratypes3,NO.C75-77from the same licality and at the same time.This new subspecies differs from Membraniporella aragoi pacifica Osburn1950in two aspects.(1)The distal part:no spine in the new subspecies,but terminates in the latter.(2)At each side of the orifice:there is a longer spine in the new one,but a short flattened spine with2or3very Short points in the latter.The new records of Ectoprocta are Thalamoporella lioticha(Ortmann,1890),Flabellopora umbonata(Haswell,1880)and Tubulipora flabellaris(Fabricius,1875).