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本文记述采自西藏自治区察隅县吉公镇巴蜗牛属1新种,吉公巴蜗牛Bradybaena(Bradybaens)jigongensis sp.nov.新种壳相与Bradybaena(Bradybaena)similaris(Ferussac,1821)相近,但前者个体体型较小,恋矢短且较真,其近端部断面为对称的二刃形,可与后者明显区分。正模,成螺,西藏自治区察隅县吉公镇,1997-07-18 ̄19,吴岷采 相似文献
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记述采自青海省达蛭华蜗牛属蜗牛1新种:达日华蜗牛Cathaica(Campylocathaica)darlagensis sp.nov。新种壳相与Cathaica(Campylocathaica)cunlunensis(Moellendorff,1899)相近,但新种壳高/壳径之比值较大,唇下部较平直,贝壳色带不同于后者。正模成螺,青海省达日县城,海拔3980m,1997-08-17,采集人李维平;副模5只成螺,采集数据同正模。模式标本保存于中国科学院动物研究所。 相似文献
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作者对中国科学院动物研究所馆藏的巴蜗牛科标本进行了整理,并已知我国平瓣蜗牛属Platypetasus共计16种和亚种,其中现发1新种,即磁县平瓣蝇牛Platypetasus cixianensis Chen et Zhang,sp.nov.,对新种的形态特征作了详细描述,与其近假种进行了比较和讨论。 相似文献
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The land snail family Camaenidae is defined by the lack of characters,such as dart sac and glands, which are present in related familiesAlthough the Camaenidae is regarded as monophyletic, no synapomorphiesunite the family It is possible that the Camaenidae is para-or polyphyletic This was investigated using a cladistic analysisof the super-family Helicoidea which was based on anatomicalcharacters from previous studies by Tilher (1989) Camaenidaewas split into two geographical groups (American and Australasian).Successive weighting generated a single most parsimonious cladogram(length 198, c.i. 0.61, r.i. 0.64), which suggested that theCamaenidae is a polyphyletic taxon. Evidence from this analysisdemonstrated that the American component of the Camaenidae isclosely related to the Hehcidae and Helminthoglyptidae, andthe Australasian component is sister group to the Bradybaenidae
*Current address Department oJ Zoology. James Cook Universityof North Queensland. Townsville. Queensland 4811, Australia (Received 30 July 1994; accepted 20 June 1995) 相似文献
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