A new species of Parastacus Huxley, 1879 ( Crustacea, Decapoda, Parastacidae) from a swamp forest in southern Brazil

被引：18

作者：

Ribeiro, Felipe Bezerra ^{[1
]}

Huber, Augusto Frederico ^{[1
]}

Schubart, Christoph D. ^{[2
]}

Araujo, Paula Beatriz ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Programa Posgrad Biol Anim, Dept Zool, Lab Carcinol,Inst Biociencias, Porto Alegre, RS, Brazil

[2] Univ Regensburg, Zool & Evolutionary Biol, Regensburg, Germany

来源：

NAUPLIUS | 2017年 / 25卷

关键词：

16S; mtDNA sequence; burrowing crayfish; Neotropical region; taxonomy; BURROWING CRAYFISH; CLASSIFICATION; GENERA;

D O I：

10.1590/2358-2936e2017008

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

In this contribution we describe a new species of burrowing crayfish of the genus Parastacus Huxley, 1879 from a swamp forest in southern Brazil and determine its conservation status. The distinction of the new species is based on morphology and the mitochondrial DNA marker 16S rRNA. The extinction risk was assessed according to the sub-criterion B1 of IUCN that estimates the Extent of Occurrence (EOO). Parastacus tuerkayi sp. nov. is morphologically distinguishable from all species of Parastacus by having three lines of verrucous tubercles on the dorsomesial margin of the cheliped propodus and a suborbital angle exceeding 90 degrees. The EOO comprises 647,674 km(2), and the species is classified as "endangered". Phylogenetic relationships indicate the distinct position of this new species in relation to the already described species.

引用

页数：14

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