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Article
Published: 2022-03-28

Mystus irulu, a new species of bagrid catfish from the Western Ghats of Karnataka, India (Teleostei: Bagridae)

A1101, Synchronicity CHS, Lok Milan Colony, Chandivali, Mumbai, Maharashtra, India—400072.
Indian Council of Agricultural Research—Central Island Agricultural Research Institute, Port Blair, Andaman and Nicobar Islands, India—744101.
pisces Siluriformes Bagridae Western Ghats Netravathi River Karnataka

Abstract

Mystus irulu, new species, is described from the Netravathi River system from the Western Ghats of Karnataka. It differs all South Asian congeners in having a uniformly black colour pattern, a long-based adipose fin reaching the base of the last dorsal-fin ray anteriorly, dorsal fin with convex dorsoposterior margin, and the following combination of characters: body depth at anus 19.9–22.3 % SL, dorsal-fin spine length 17.5–18.7 % SL, adipose-fin base 34.2–38.4 % SL, caudal peduncle depth 10.6–11.9 % SL and eye diameter 27.2–37.1 % HL.

 

References

  1. Blyth, E. (1860) Report on some fishes received chiefly from the Sitang River and its tributary streams, Tenasserim Provinces. Journal of the Asiatic Society of Bengal, 29, 138–174.
    Chakrabarty, P. & Ng, H.H. (2005) The identity of catfishes identified as Mystus cavasius (Hamilton, 1822) (Teleostei: Bagridae), with a description of a new species from Myanmar. Zootaxa, 1093 (1), 1–24. https://doi.org/10.11646/zootaxa.1093.1.1
    Darshan, A., Vishwanath, W., Mahanta, P.C. & Barat, A. (2011) Mystus ngasep, a new catfish species (Teleostei:Bagridae) from the headwaters of Chindwin drainage in Manipur, India. Journal of Threatened Taxa, 3, 2177–2183. https://doi.org/10.11609/JoTT.o2180.2177-83
    Darshan, A., Abujam, S., Kumar, R., Parhi, J., Singh, Y.S., Vishwanath, W., Das, D.N., Pandey, P.K. (2019) Mystus prabini, a new species of catfish (Siluriformes: Bagridae) from Arunachal Pradesh, north-eastern, India. Zootaxa, 4648 (3), 511–522. https://doi.org/10.11646/zootaxa.4648.3.6
    Ferraris, C.J. (2007) Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa, 1418 (1), 1–628. https://doi.org/10.11646/zootaxa.1418.1.1
    Ng, H.K. & Kottelat, M. (2009) A new species of Mystus from Myanmar (Siluriformes: Bagridae). Copeia, 2009 (2), 245–250. https://doi.org/10.1643/CI-08-104
    Ng, H.H. & Kottelat, M. (2013) Revision of the Asian catfish genus Hemibagrus Bleeker, 1862 (Teleostei: Siluriformes: Bagridae). The Raffles Bulletin of Zoology, 61, 205–291.
    Ng, H.H. & Pethiyagoda, R. (2013) Mystus zeylanicus, a new species of bagrid catfish from Sri Lanka (Teleostei: Bagridae). Ichthyological Exploration of Freshwaters, 24, 161–170.
    Roberts, T.R. (1994) Systematic revision of Asian bagrid catfishes of the genus Mystus sensu stricto, with a new species from Thailand and Cambodia. Ichthyological Exploration of Freshwaters, 5, 241–256.