摘要
本文是中国近海蔓足类研究报告的第二部分,根据的材料是中国科学院海洋研究所历年采集收藏的标本。共记述笠藤壶科Tetraclitidae的9种,分隶于2亚科4属,其中有一新属——星笠藤壶属Astroclita gen.nov.,2新种,另有1种为我国首次记录。新种的模式标本保存在中国科学院海洋研究所。笠藤壶在我国主要分布于长江口以南的亚热带和热带海区,是潮间带岩岸生物群落组成中的主要种类,特别是大型的鳞笠藤壶Tetraclita squamosa squamosa(Bruguiere)和日本笠藤壶Tetraclita japonica Pilsbry等也可以附着于浮标、船底或码头上,有一定的危害。
In the present paper——the second part of a systematic study of the cirripedianfauna of Chinese waters,an account of nine species of thoracic Cirripedia belonging to four genera of the family Tetraclitidae is given.One genus and two species are described as new,and one species is recorded for the first time from Chinese seas.The materials based upon are the same as those mentioned in the first part of this study.The type specimens of new species are deposited in the Institute of Oceanology,Academia Sinica at Tsingtao.The species identified are listed below:Family TETRACLITIDAE Gruvel,1903 Subfamily TETRACLITINAE Gruvel,1903Genus Tetraclita Schumacher,18171.Tetraclita squamosa sguamosa(Bruguiere,1789)s.s.2.Tetraclita japonica Pilsbry,19163.Tetraclita coerulescens(Spengler,1790)Genus Astriclita nov.4.Astroclita longicostata sp.nov.Genus Tesseropora Pilsbry,19165.Tesseropora alba sp.nov.Subfamily TETRACLITELLINAE Newman&Ross,1976Genus Tetraclitella Hiro,19396.Tetraclitella chinensis(Nilsson-Cantell.1921)7.Tetraclitella divisa(Nilsson-Cantell,1921)8.Tetraclitella darwini(Pilsbry,1928)9.Tetraelitella multicostata(Nilsson-Cantell,1930)is recorded for the first time in Chinese waters Astroclita gen.nov.Shell small,low conic.Compartments discrete,with strong longitudinal ribs extending well beyond the basal margin.Parietes with more than two rows of longitudinal tubes.Radii very narrow or obsolete,without transverse tubes,summits oblique,articular margin with blunt teeth.Sheath adpressed.Basis calcareous,without tubes.Scutum almost as long as wide,lacking depressor crests.Tergum rather narrow,spur short and broad,not distinctly separated from the basi-scutal angle.Maxilla with spines almost subequal in length below subapical notch of cutting edge.Type species:Astroclita longicostata sp.nov.(South China Sea).The present new genus belongs to the subfamily Tetraclitinae(Tesseroporan group of Ross).It resembles Tetraclita in having more than two rows of parietal tubes and in having narrow and non-tubiferous radii,but differs from the latter in its small size and strongly ribbed shell,and in its scutum lacking of depressor crests.Astroclita gen.nov.is also very similar to Tetraclitella in general appearance,especially in the small size and strongly ribbed shell,and in the comparatively smooth inner,surface of the scutum,but in the latter genus(as well as Genus Newmanella)the radii are broad and transversely tubed,and the growth of the shell is diametric.Astroclita longicostata,sp.nov.(Text-fig.3;Pl.Ⅱ:13-16;Pl.Ⅲ:1-4)Holotype:C80631-1(10AC),diameter 7.5mm Yongxingdao,Xisha Is.,Guangdong Province.Inter-tidal,coral reef.Z.C.Fan&J.S.Xu coll.1958.VI.12.Paratypes:C80631-2;C80632-1;C80633.Locality same as holotype.1958.Ⅲ-Ⅴ.Shell white,low conic,transverse growth lines well developed and hirsute.Compartments discrete,with a total of 14 prominent longitudinal ribs,5 on rostrum,3 on carina and each of the laterals,extending well beyond the basal margin.Radii narrow or obsolete,non-tubiferous,with oblique summits and bluntly toothed articular margins.Alae thin,summits oblique.Sheath white,with transverse growth lines,lower marginContribution No.490 from the Institute of Oceanology,Academia Sinica.adpressed;region below sheath smooth,with short ribs on basal portion in larger individuals.Parietes with more than 2 rows of irregularly shaped longitudinal tubes(only one single row in smaller ones).Basis calcareous,thin,without tubes,but rings of growth lines are visible.Opercular valves white.
作者
任先秋
刘瑞玉
Ren Xianqiu;Liu Ruiyu(Institute of Oceanology,Academia Sinica)
出处
《海洋与湖沼》
1979年第4期338-353,403-406,共20页
Oceanologia Et Limnologia Sinica
