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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: 154
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).

 

References

  1. Allen, G.R. & Erdmann, M.V. (2012) Reef fishes of the East Indies. Volumes I-III. Tropical Reef Research, Perth, 1292 pp.

    Birdsong, R.S., Murdy, E.O. & Pezold, F.L. (1988) A study of the vertebral column and median fin osteology in gobioid fishes with comments on gobioid relationships. Bulletin of Marine Science, 42, 174–214.

    Bussing, W.A. (2001) Ptereleotris carinata, a new species of hovering goby (Perciformes: Microdesmidae) from the tropical eastern Pacific. Revista de Biología Tropical, 49, 133–139.

    Fricke, R., Eschmeyer, W.N. & Van der Laan, R. (2020) (Eds.), Eschmeyer’s Catalog of Fishes: genera, species, references. Electronic Version. Available from: http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp (accessed 18 May 2020)

    Gasparini, J.L., Rocha, L.A. & Floeter, S.R. (2001) Ptereleotris randalli n. sp., a new dartfish (Gobioidei: Microdesmidae) from the Brazilian coast. Aqua, Journal of Ichthyology and Aquatic Biology, 4, 109–114.

    Gill, A.C. & Mooi, R.D. (2010) Character evidence for the monophyly of the Microdesminae, with comments on relationships to Schindleria (Teleostei: Gobioidei: Gobiidae). Zootaxa, 2442 (1), 51–59.

    https://doi.org/10.11646/zootaxa.2442.1.4

    Hoese, D.F. (1984) Gobioidei: relationships. In: Moser, H.G., Richards, W.J., Cohen, D.M., Fahay, M.P., Kendall, A.W. Jr. & Richardson, S.L. (Eds.), Ontogeny and Systematics of Fishes. American Society of Ichthyologists and Herpetologists Special Publication, 1, pp. 588–591.

    Kapoor, D., Dayal, R. & Ponniah, A.G. (2002) Fish biodiversity of India. National Bureau of Fish Genetic Resources Lucknow, India, 775 pp.

    Randall, J.E. & Hoese, D.F. (1985) Revision of the Indo-Pacific dartfishes, genus Ptereleotris (Perciformes: Gobioidei). Indo-Pacific Fishes, 7, 1–36, pls. 1–4

    Randall, J.E. & Suzuki, T. (2008) Three new species of dartfishes of the gobioid genus Ptereleotris from the western Pacific. Aqua, International Journal of Ichthyology, 14, 89–100. [Erratum: Aqua, International Journal of Ichthyology 14, 164]

    Thacker, C.E. & Roje, D.M. (2011) Phylogeny of Gobiidae and identification of gobiid lineages. Systematics and Biodiversity, 9 (4), 329–347.

    https://doi.org/10.1080/14772000.2011.629011

    Vaz, G.G. (1996) Relict coral reef and evidence of Pre-Holocene sea level stand off Mahabalipuram, Bay of Bengal, Current Science, 71, 240–242.