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Type: Article
Published: 2019-07-31
Page range: 511–522
Abstract views: 172
PDF downloaded: 4

Mystus prabini, a new species of catfish (Siluriformes: Bagridae) from Arunachal Pradesh, north-eastern, India

Department of Fisheries Resource Management, Pandit Deen Dayal Upadhyay Institute of Agricultural Sciences, Utlou-795134, Manipur, India.
Fishery and Aquatic Biology Laboratory, Department of Zoology, Rajiv Gandhi University, Rono Hills, Doimukh-791112, India.
Fishery and Aquatic Biology Laboratory, Department of Zoology, Rajiv Gandhi University, Rono Hills, Doimukh-791112, India.
Department of Fish Genetic & Reproduction, College of Fisheries, Central Agriculture University, Lembucherra, Agartala, Tripura.
Department of Fish Genetic & Reproduction, College of Fisheries, Central Agriculture University, Lembucherra, Agartala, Tripura.
Department of Life Sciences, Manipur University, Canchipur-795 003, Manipur, India.
Fishery and Aquatic Biology Laboratory, Department of Zoology, Rajiv Gandhi University, Rono Hills, Doimukh-791112, India.
Department of Fish Genetic & Reproduction, College of Fisheries, Central Agriculture University, Lembucherra, Agartala, Tripura.
Pisces DNA barcoding Mystus New species Brahmaputra basin

Abstract

Mystus prabini, new species, is described from the Sinkin and the Dibang River in the Lower Dibang Valley District of Arunachal Pradesh, India. The new species differs from all South-Asian congeners except M. bleekeri, M. cavasius, M. zeylanicus,  M. falcarius, M. seengtee, M. cineraceus, M. ngasep, M. rufescens and M. ankutta in having a long adipose fin that reaches anteriorly (vs. distinctly does not reach) the base of the last dorsal-fin ray. The new species can be distinguished from the named nine species in having (vs. lacking) a narrow black mid-lateral stripe extending from the anterior region of tympanic spot to the rounded black spot at the caudal-fin base. The analysis of mitochondrial cytochrome c oxidase subunit I (COI) gene sequence shows that the K2P value between Mystus prabini and all other Mystus species ranges from 8.6–22.1%. Mystus prabini is closest genetically to M. bleekeri and M. albolineatus, from which species it has a genetic distance of 8.6% and 13.9%, respectively. The genetic distance (K2P) between the new species and M. dibrugarensis is 21.1%.  

 

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