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首页> 外文期刊>Zootaxa >Two new crayfishes of the genus Cambarus (Decapoda: Cambaridae) from Northern Alabama and South Central Tennessee, USA
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Two new crayfishes of the genus Cambarus (Decapoda: Cambaridae) from Northern Alabama and South Central Tennessee, USA

机译：来自美国阿拉巴马州北部和田纳西州中南部的两个新的小龙虾属Cambarus属（十足目：Cambaridae）

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摘要

Multivariate and univariate statistical analyses of morphometric data and examination of morphological characters of the crayfish species Cambarus (Hiaticambarus) longirostris revealed the existence of two undescribed species from populations previously considered to be C. longirostris in tributaries of the Tennessee River in north Alabama and central south Tennessee. Cambarus (Hiaticambarus) andersoni and Cambarus (Hiaticambarus) diupalma differed from C. longirostris and from each other in aspects of chela morphometrics and in the presence or absence of qualitative characters. Cambarus andersoni has a corneous spine on the base of the ventral surface of the rostrum that is absent in the other two species; C. diupalma abdominal pleura are acute whereas they are subtruncate in C. andersoni and in C. longirostris. The known range of both of the new species is restricted to northern tributaries of the Tennessee River in south Tennessee and north Alabama. Cambarus diupalma is considered Endangered and C. andersoni is considered Vulnerable using American Fisheries Society conservation categorization.
机译：形态数据的多变量和单变量统计分析以及小龙虾物种Cambarus（Hiaticambarus）longirostris的形态特征检查显示，先前在阿拉巴马州北部和中南部的田纳西河支流中存在两个未被描述的物种，这些物种先前被认为是C. longirostris。田纳西州。 Cambarus（Hiaticambarus）andersoni和Cambarus（Hiaticambarus）diupalma与C. longirostris不同，在螯合形态学方面以及是否存在定性特征方面彼此不同。坎伯鲁斯·安德森（Cambarus andersoni）在讲台腹面的基部有一个角质脊柱，而其他两个物种则没有。 C. diupalma腹腔胸膜是急性的，而在C. andersoni和C. longirostris中它们是截短的。这两个新物种的已知范围仅限于田纳西州南部和阿拉巴马州北部的田纳西河北部支流。根据美国渔业协会的养护分类，Cambarus diupalma被认为是濒临灭绝的动物，而C. andersoni被认为是易受伤害的。

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