中国真管螺属一新种记述(肺螺亚纲,柄眼目,烟管螺科)  

A NEW SPECIES OF THE GENUS EUPHAEDUSA FROM CHINA (PULMONATA,STYLOMMATOPHORA,CLAUSILIIDAE)

作　　者：罗煜[1] 陈德牛[2] 周卫川[3] 

机构地区：[1]贵州师范大学地理与生物科学学院,贵阳550001 [2]中国科学院动物研究所,北京100101 [3]福建省出入境检验检疫局技术中心,福州350001

出　　处：《动物分类学报》2009年第1期119-121,共3页Acta Zootaxonomica Sinica

摘　　要：记述采自陕西省陆生贝类1新种,微小真管螺Euphaedusa minuta sp.nov.,文中对新种形态特征、栖息环境进行了描述,并对其相似种进行了分析和讨论。In the present paper a new species of land snail is described.The materials were collected by the authors in Changan County,Shaanxi Province,China,Apr.1992.Type specimens are deposited in the Institute of Zoology,Chinese Academy of Sciences,China.Euphaedusa minuta sp.nov.（Figs.1-3）Holotype,alt.10.10？mm,diam.2.20？mm,alt.of aperture 1.54？mm,diam.of aperture 1.10？mm collected from Nanwutaishan Town,Changan County（34°01＇N,108°09＇E）,Shaanxi Province,China,20 Apr.1992.Paratypes 3 specimens,alt.9.95-10.20？mm,diam.2.02-2.32？mm,alt.of aperture 1.37-1.61？mm,diam.of aperture 1.05-1.19？mm,collected from Nanwutaishan Town,Changan County（34°01＇N,108°09＇E）,Shaanxi Province,China,20 Apr.1992.Shell small,sinistral,thin,fragile,slender,fusiform.Whorls 912,moderetely convex with high spiral part,body whorl expand,and with thick rib-stria on the back of body whorl.Shell yellowish brown or pale yellow in colour,surface with very distinct spiral line and growth line;protoconch smooth,without spiral line.Apex blunt,suture deep.Aperturee small,pear-shaped,peristome thick.Superior lamella small,inferior lamella large,both lamellae visible in aperture,and both lamella distance very near,and the superior lamella continues into spiral lamella.Subcolumellar lamella not visible in front aperture view.Principalis long and thin,visible in the right side of the last whorl;lunell plicae is not visible.The clausilium soup spoon-formed,and with a small ga on front;pedicle long and thin.At present,a total of 73 species and subspecies of genus Euphaedusa were found in China.The new species closely resembles Euphaedusa zhenanensis Chen,Liu and Xu,1996 in general structure,but differs from the latter chiefly in the shell being much big and with 912 whorls,（10.10？mm,diam.2.20？mm,alt.of aperture 1.54？mm,diam.of aperture 1.10？mm）,Superior lamella small,inferior lamella large,both lamellae visible in aperture,and both lamella distance very near,and the superior lamella continues into spiral lamella.Subcol

关 键 词：肺螺亚纲 柄眼目 烟管螺科 真管螺属 新种 

分 类 号：Q959[生物学—动物学]