Descriptions of new taxa of the Clausiliidae from Turkey (Mollusca: Stylommatophora)

Summary

Several new taxa of the Clausiliidae were described From Turkey: Dobatia multidentifera n. sp., Albinaria monocristata n. sp., Albinaria basalifera n. sp., Roseniella (Chavchetia) n. subgen., Roseniella (Chavchetia) rufina n. sp., Armenica euprepes truncata n. ssp., Armenica multispirata n. sp., Armenica bicarinata grisea n. ssp., Kazancia n. gen., and Kazancia monticola n. sp. Investigations were made of the genital morphology of some species, and the arrangement of the taxa in Nordsieck’s classification (H, NORDSIECK 1979) is discussed.     

Widespread polyphyly among Alopiinae snail genera: when phylogeny mirrors biogeography more closely than morphology

Consider a group of species that is evenly divided by an easily identifiable complex morphological character. Most biologists would assume that this character should provide better phylogenetic information than, say, the spatial distribution of these species over a fairly continuous 500-km radius area. Paradoxically, this is not the case among terrestrial snail genera in the clausiliid subfamily Alopiinae. Phylogenetic analysis using the nuclear markers ITS1/ITS2 and mitochondrial markers COI/12S reveals widespread homoplasy in the clausilial apparatus (a complex aperture-closing mechanism), and concomitant extensive polyphyly among Carinigera, Isabellaria, and Sericata. In contrast, phylogenetic relationships as revealed by molecular data are closely congruent with biogeography at a relatively small scale. A combination of extremely low vagility and extremely high morphological convergence has conspired to produce this unexpected result. Implications as to the function of the clausilial apparatus are discussed.     

甘肃管螺属一新种记述(肺螺亚纲,柄眼目,烟管螺科)

记述采自甘肃省文县陆生贝类1新种,文县管螺Phaedusa wenxianensis sp.nov.,对新种形态特征、栖息环境进行了描述,并与其相似种进行了分析和讨论。     

云南管螺属一新种记述(肺螺亚纲,柄眼目,烟管螺科)

记述采自云南省石林县陆生贝类1新种,即石林管螺Phaedusa shilinensis 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。     

中国真管螺属一新种记述(肺螺亚纲,柄眼目,烟管螺科)

记述采自贵州省陆生贝类1新种,即白脉真管螺Euphaedusa leucophlebia sp.nov.,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.     

中国丽管螺属的研究(肺螺亚纲:柄眼目:烟管螺科:管螺亚科)

现已知我国烟管螺科丽管螺属共计１７种和亚种,主要分布于我国四川,云南,湖北,湖南,江西,浙江等处区,即分布于我国秦岭以南广东东洋界地区。作者在云南路南县石林地区采得丽管螺属一新种,即路南丽管螺,作者对我国已知的丽管螺属的种类进行了整理分析,对新种进行了描述。     

中国烟管螺科二新种（肺螺亚纲：柄眼目）

本文记述采自陕西省陆生贝类二新种：陇县真管螺和镇安真管螺。文中对二新形态特征,栖息环境进行了描述,并对其相似种进行了分析和讨论。     

中国管螺属的研究(肺螺亚纲:柄眼目:烟管螺科:管螺亚科)

作者系统整理了中国管螺属Ｐｈａｅｄｕｓａ的标本和有关资料,已知我国管螺属计有２２种,其中发现有３新种,即峨嵋管螺Ｐｈａｅｄｕｓａ ｅｍｅｉｅｎｓｉｓ ｓｐ．ｎｏｖ．、丹巴管螺Ｐｈａｅｄｕｓａ ｄａｎｂａｅｎｓｉｓ ｓｐ．ｎｏｖ．和三门管螺Ｐｈａｅｄｕｓａ ｓａｎｍｅｎｅｎｓｉｓ ｓｐ．ｎｏｖ．。本文对旧有的种进行了整理和甄别,对新种的形态特征作了详细的描述,并与近似种进行了比较。     

The provenance of the Greek land snail species Isabellaria pharsalica: molecular evidence of recent passive long-distance dispersal

Aim The slowly dispersing Greek land snail species Isabellaria (Carinigera) pharsalica ( Nordsieck, 1974 ) can be readily distinguished from related species of the subgenus Carinigera on biogeographical grounds, i.e. by a separation of nearly 200 km. Nevertheless, I. pharsalica shows overlap in shell morphology with Isabellaria (Carinigera) buresi (A. J. Wagner, 1927). The aim of this paper is to study the interrelationships and phylogeography of I. pharsalica and selected I. buresi subspecies, in order to reconcile these apparently contradictory observations. Location Northern Greece, Macedonia, Serbia and southern Bulgaria. Methods Mitochondrial COI genealogical interrelationships were studied for specimens of I. pharsalica, selected I. buresi subspecies and other related Isabellaria species. Results COI sequences of I. pharsalica constitute a clade nested among sequences of I. buresi from north‐eastern Greece and adjacent Bulgaria. The genetic divergence among the I. pharsalica sequences is remarkably low compared to the divergence among the I. buresi sequences. Main conclusions I. pharsalica descended from specimens of I. buresi that dispersed into Thessaly, and it should therefore be classified as a subspecies within I. buresi. This find is in line with the conchological similarities between I. buresi pharsalica and other I. buresi subspecies. Given the low vagility of the snails in question and the c. 200‐km separation by land and sea between the ranges of I. buresi pharsalica and the combined range of the other I. buresi subspecies, passive dispersal of the I. pharsalica ancestors is most likely. Since the inferred area of origin of these hypothetical ancestors of I. buresi pharsalica nearly coincides with an ancient marble quarry, human‐aided dispersal during marble transport offers a possible explanation for I. buresi pharsalica's erratic distribution.