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Issue: Vol. 5763 No. 4: 5 Mar. 2026
Type: Article
Published: 2026-03-05
DOI: 10.11646/zootaxa.5763.4.9
Page range: 588-596
Abstract views: 127
PDF downloaded: 4

Butis bargabhimae sp. nov., a new species of butid fish (Teleostei: Gobiiformes: Butidae) from the Rupnarayan River, Purba Medinipur, West Bengal, India

PG Department of Zoology; Tamralipta Mahavidyalaya; Tamluk; 721636; West Bengal; India.
PG Department of Zoology; Tamralipta Mahavidyalaya; Tamluk; 721636; West Bengal; India.
PG Department of Zoology; Tamralipta Mahavidyalaya; Tamluk; 721636; West Bengal; India.
PG Department of Zoology; Tamralipta Mahavidyalaya; Tamluk; 721636; West Bengal; India.
Professor (Retired); Department of Zoology; Vidyasagar University; Midnapore; 721102; West Bengal; India.
Pisces Estuarine fish gudgeon goby mitochondrial COI short snout Butis

Abstract

Butis bargabhimae sp. nov. is morphologically similar to B. koilomatodon and B. delagoensis but can be distinguished from both of these morphologically by the presence of interorbital scales (IOS 2–3/7–8/2–3), auxiliary scales, bands on the pectoral fin, and the absence of a row of alternating blackish and yellowish spots at the base of the caudal fin. The NCBI BLAST result of COI gene shows 86% similarity with both B. koilomatodon and B. delagoensis. The COI sequence MN171371.1 submitted as B. koilomatodon from Bangladesh shows 99% similarity with B. bargabhimae sp. nov. and belongs to the same clade rather than the clade of B. koilomatodon from the state of Kerala in India and those from other countries. It seems B. koilomatodon from Bangladesh is a misidentification and should be included under B. bargabhimae sp. nov. Likewise COI sequence of B. koilomatodon, as reported earlier by Pahari et al. (2024), suggests this was a misidentification and should be redesignated as B. delagoensis.

 

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How to Cite

Maiti, S., Mandal, S., Das, M., Pahari, P.R. & Bhattacharya, T. (2026) Butis bargabhimae sp. nov., a new species of butid fish (Teleostei: Gobiiformes: Butidae) from the Rupnarayan River, Purba Medinipur, West Bengal, India. Zootaxa, 5763 (4), 588–596. https://doi.org/10.11646/zootaxa.5763.4.9