阿氏副鳅，一种来自里海南部流域的新种嵴鳅（硬骨鱼纲：条鳅科）。

Paracobitis abrishamchiani, a new crested loach from the southern Caspian Sea basin (Teleostei: Nemacheilidae).

作者信息

Mousavi-Sabet Hamed, Vatandoust Saber, Geiger Matthias F, Freyhof JÖrg

机构信息

Department of Fisheries Sciences, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Guilan, Iran. The Caspian Sea Basin Research Center, University of Guilan, Rasht, Guilan, Iran..

出版信息

Zootaxa. 2019 Jan 17;4545(3):375-388. doi: 10.11646/zootaxa.4545.3.3.

DOI:10.11646/zootaxa.4545.3.3

PMID:30790906

Abstract

Paracobitis abrishamchiani, new species, is described from the southern Caspian Sea basin, where it is found in the Babol, Haraz, Siah, Tajan, Talar and Kashpal River drainages. It is distinguished from P. hircanica and P. atrakensis, the two other Paracobitis species known from the Caspian Sea basin, by having scales on the flank posterior to the dorsal-fin origin and from its congeners in the Middle East by the position of its dorsal-fin origin, having a roundish posterior narial opening, and a colour pattern consisting of many widely spaced brown spots and blotches. It is further characterized by six diagnostic nucleotide substitutions and a minimum K2P distance of 4.3% to P. persa and 4.6% to P. malapterura in the mtDNA COI barcode region.

摘要

新物种阿氏副鳅（Paracobitis abrishamchiani）是在里海南部流域被发现并被描述的，它分布于巴博勒河、哈拉兹河、锡亚赫河、塔扬河、塔拉尔河和卡什帕尔河的排水区域。它与里海流域已知的另外两种副鳅物种——希尔卡尼亚副鳅（P. hircanica）和阿特拉肯斯副鳅（P. atrakensis）不同，其区别在于背鳍起点后方的体侧有鳞片；与中东地区的同属物种不同，其区别在于背鳍起点的位置、后鼻孔呈圆形，以及由许多间隔较宽的褐色斑点和斑块组成的体色模式。它的进一步特征是在mtDNA COI条形码区域有六个诊断性核苷酸替换，与波斯副鳅（P. persa）的最小K2P距离为4.3%，与无鳍副鳅（P. malapterura）的最小K2P距离为4.6%。