江西弯螺属一新种记述(肺螺亚纲,柄眼目,扭轴蜗牛科)  

A NEW SPECIES OF THE GENUS SINOENNEA FROM JIANGXI, CHINA(PULMONATA, STYOMMATOPHORA, STREPTAXIDAE)

作　　者：欧阳珊[1] 刘息冕[1,2] 吴小平[1,3] 

机构地区：[1]南昌大学生命科学与食品工程学院,南昌330031 [2]南昌大学生命科学研究院,南昌330031 [3]北京林业大学自然保护区学院,北京100083

出　　处：《动物分类学报》2012年第1期72-75,共4页Acta Zootaxonomica Sinica

基　　金：国家自然科学基金(30860045;30460023);江西省主要学科学术和技术带头人项目(2003-154);北京林业大学985优势学科建设平台项目资助)~~

摘　　要：在整理江西地区陆生贝类标本时,经比对鉴定发现1新种,龙潭弯螺Sinoennea longtanensis sp.nov.,隶属肺螺亚纲、柄眼目、扭轴蜗牛科、弯螺属。对新种形态特征、栖息环境作了记述,并与其近似种进行讨论。A new species of the genus Sinoennea is described in the present paper. The materials were collected in Jiangxi Province, China in 2011 by the authors. Type specimens are deposited in the College of Life Sciences and Food Engineering, Nanchang University, Nanchang and the Institute of Zoology, Chinese Academy of Sciences, Beijing, China. Sinoennea longtanensis sp. nov. （Figs 1-5） Holotype, alt. 3.50 mm, diam. 1.80 mm, alt. of aperture 1.24 mm, diam. of aperture 1.13 mm, collected from Longtan scenic spot, Jinggangshan City （26°35′N, 114°08′E）, Jiangxi Province, China, 2 July 2011. Paratypes 9 specimens, alt. 3.24-3.60 mm, diam. 1.75-1.96 mm, alt. of aperture 1.00-1.29 mm, diam. of aperture 1.03-1.29 mm, collected with the holotype. Shell small, thick, solid, cylindrical. Apex blunt. Shell milk white or light yellow in colour, glassy transparent, with shining shell surface. Suture distinct and deep. Whorls 6 12, moderately convex with high spiral part. Top two whorls smooth, following ones with vertically, equally spaced ribs, about 26-27 on the last whorl, visible only at suture. Shell surface smooth thoroughly. Columella visible on the last whorl. Aperture small, triangle. Peristome thick, expanded and reflexed. Inner lip with callus and a big flake-shaped curving and angular lamella. Outer margin the peristome beard two nipple-formed palatal teeth： the smaller one lies at the upper edge of peristome, the large one deeper down at bottom of peristome. Columellar lip vertical, with two columellar teeth, one small nipple-formed tooth at the peristome edge, a second large nipple-formed tooth somewhat lower down. Basal tooth small. Umbilicus small, cavernous. The new species resembles Sinoennea pupoidea Zhou, Zhang and Chen, 2009, but differs from the latter by the shells with 6 1 2 whorls （alt. 3.50 mm, diam. 1.80 mm, alt of aperture 1.24 mm, diam. of aperture 1.13 mm） and the small, triangle-shaped aperture. At the columellar side there are two columellar teeth and one small basal tooth. But the

关 键 词：前鳃亚纲 柄眼目 扭轴蜗牛科 弯螺属 新种 

分 类 号：Q959.212.5[生物学—动物学]