拟管螺属三新种记述(肺螺亚纲:柄眼目:烟管螺科:管螺亚科)

报道我国烟管螺科、管螺亚科、拟管螺属3新种：即西昌拟管螺新种Hemiphaedusxichangensissp.nov.,勐仑拟管螺新种Hemiphaedusamenglunanensissp.nov.,灌阳拟管螺新种Hemiphaedusaguanyangensissp.nov．．对新种进行了描述,对其近似种进行了讨论和比较．     

中国拟管螺属的研究及二新种记述(肺螺亚纲、柄眼目、烟管螺科、管螺亚科)

报道我国烟管螺科、管螺亚科、拟管螺属共计36种，其中有5新种：即桑坪拟管螺新种Hemiphaedusasangpingensissp.nov.,云阳拟管螺新种Hemiphaedusayunyangensissp.Nov，西昌拟管螺新种Hemiphaedusaxichangensissp.nov.,勐仑拟管螺新种Hemiphaedusamenglunanensissp.nov，灌阳拟管螺新种Hemiphaedusaguanyangensissp.nov.（后三新种另文发表）．主要分布于我国陕西、四川、云南、贵州、湖北、湖南、江西、安徽、上海、江苏、浙江、福建、广东和广西等省区、市，即分布于我国秦岭以南广大东洋界地区，对我国已知的拟管螺属的种类进行了整理分析，对其地理分布进行了讨论，并对新种进行了描述．     

The reproductive strategies of clausiliid land snails from Northern Vietnam (Gastropoda: Stylommatophora)

Under laboratory conditions we scrutinized the reproduction and development of two clausiliid land snail species from northern Vietnam: Phaedusa paviei (Morlet, 1892) and Oospira vanbuensis (Bavay and Dautzenberg, 1899). These species, very similar in shell size and shape, feature different reproductive modes. The former is viviparous, giving birth to one or two neonates on a single occasion, with the number of developing embryos retained in the reproductive tract ranging from 1 to 11. The embryonic shells are 1.8–4.7 mm in height. The latter species is oviparous and produces eggs in clutches (four to six per clutch). Hatching occurs 18–21 days after egg-laying. Both species exhibit a similar growth pattern: the ultimate shell size is attained after 6.5–8.5 months and reproduction starts 5–7 months later. The distribution of viviparous reproduction among the Phaedusinae and its taxonomic importance are discussed.