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Issue: Vol. 4861 No. 3: 19 Oct. 2020
Type: Article
Published: 2020-10-19
DOI: 10.11646/zootaxa.4861.3.8
Page range: 423–428
Abstract views: 133
PDF downloaded: 8

A new species of dartfish of the genus Ptereleotris (Teleostei: Gobiidae) from the East Coast of India

Dr. M.G.R. Fisheries College and Research Institute, Ponneri—601 204, Tamil Nadu, India
Division of Fisheries Science, ICAR–Central Island Agricultural Research Institute, Port Blair—744 105, Andaman and Nicobar Islands, India
Pisces Tamil Nadu Goby Indian Ocean Indo-Pacific

Abstract

Ptereleotris cyanops n. sp. is described from five specimens collected in trawl landings at Chennai, Tamil Nadu, East Coast of India. The new species is unusual among congeners in possessing a wide interdorsal space, its width 2.5–3.2% in SL. The new species resembles P. microlepis in general morphology and coloration, but is readily distinguished from it in lacking a black bar at base of pectoral fin, in having a slightly truncate caudal fin with the 5th and 13th branched rays prolonged as filaments (vs. emarginated caudal fin with absence of any caudal filaments), and in having the second dorsal and anal fin not elevated anteriorly (vs. elevated). Ptereleotris cyanops differs from caudal filaments bearing congeners viz., P. arabica and P. hanae, by the absence of chin barbel (vs. present in both); in having a longer pelvic fin (17.7–18.8 vs. 13.1–15.5% SL in P. arabica), and more anal rays (27 vs. 22–25 in P. hanae).

 

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