A new genus, Denhamiana gen. nov., and two new species of land snail from inland central Queensland (Eupulmonata, Camaenidae)

Q4 Earth and Planetary Sciences Memoirs of the Queensland Museum Pub Date : 2013-01-01 DOI:10.17082/j.2204-1478.58.2013.2013-14

J. Stanisic

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引用次数: 1

Abstract

Denhamiana gen. nov. is established for at least two new species of camaenid land snail from inland mid-eastern Queensland. D. laetifica sp. nov. occurs in an area stretching from just west of Eungella, southward through the Denham Range to Pine Mountain, south-east of Nebo, while D. leichhardti sp. nov. is hitherto known only from the more westerly Carborough Range. A third species Denhamiana sp. nov. ‘Dipperu’ is proposed awaiting more specimens. These camaenids are characterised by a combination of morphological features including a large helicoid shell with bold dark brown spiral bands and dark brown apertural lip, a closed umbilicus and a reproductive system featuring a reduced epiphallus, a short vestigial epiphallic flagellum and a cylindrical, sheathed penis that internally has a penial stimulator and triangular verge. Molecular study of one of the species indicates that the genus is a sister group to Bentosites Iredale, 1933 whose species occur in coastal and sub-coastal rainforests in localities between Ayr and Sarina, mid-eastern Queensland.

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昆士兰中部内陆地螺一新属及二新种(扁螺目，扁螺科)

在昆士兰州中东部内陆的camaenid陆地蜗牛中至少建立了两个新种的Denhamiana gen. nov。D. laetifica sp. nov出现在从Eungella的西部，向南穿过Denham山脉到Nebo东南部的Pine Mountain的地区，而D. leichhardti sp. nov迄今为止只在更西侧的Carborough山脉被发现。第三个物种Denhamiana sp.十一月' Dipperu '被提议等待更多的标本。这些camaenids的特征是形态特征的组合，包括一个大的螺旋形外壳，带有粗大的深棕色螺旋带和深棕色开口唇，封闭的脐带和生殖系统，具有减少的附属物，短的退化的附属物鞭毛和一个圆柱形的有鞘的阴茎，内部有阴茎刺激器和三角形边缘。其中一种的分子研究表明，该属是Bentosites Iredale, 1933的姐妹类群，Bentosites Iredale的物种分布在昆士兰州中东部的Ayr和Sarina之间的沿海和次沿海雨林中。

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Memoirs of the Queensland Museum Environmental Science-Ecology

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