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Issue: Vol. 1671 No. 1: 1 Jan. 2008
Type: Article
Published: 2008-01-01
DOI: 10.11646/zootaxa.1671.1.3
Page range: 33–58
Abstract views: 59
PDF downloaded: 1

Three new legskates of the genus Sinobatis (Rajoidei: Anacanthobatidae) from the Indo–West Pacific

CSIRO Marine & Atmospheric Research, GPO Box 1538, Hobart, 7001, Australia
IRD/Muséum national d’Histoire naturelle, Département Systématique et Evolution, UMS 602 “Taxonomie et Collections”, Case postale n° 51, 55 rue Buffon, 75231 Paris cedex 05, France
Pisces Sinobatis new species Anacanthobatidae Rajoidei legskate Indo–West Pacific

Abstract

Three new species of legskates (Anacanthobatidae) are described from the Indo–Australian region. Two of these species conform to the subgenus Sinobatis Hulley of Anacanthobatis von Bonde & Swart, which is herein elevated to genus level based primarily on clasper morphology. Sinobatis presently includes S. borneensis (South China Sea and Taiwan) and possibly S. melanosoma (East and South China Seas and Taiwan), as well as the new species, S. bulbicauda sp. nov. (eastern Indonesia and northwestern Australia, SE Indian Ocean) and S. filicauda sp. nov. (northeastern Australia, SE Pacific Ocean). The third new species, S. caerulea sp. nov. (northwestern Australia, SE Indian Ocean), is provisionally placed in Sinobatis in the absence of an adult male. The new species are distinguishable from each other, and from nominal Indo–Pacific legskates, based on their morphometrics, meristics, tail morphology and coloration. Legskates exhibit marked intraspecific variation in shape associated with their soft, flexible bodies, and considerable ontogenetic and sexual differentiation.

References

  1. Bigelow, H.B. & Schroeder, W.C. (1948) New genera and species of batoid fishes. Journal of Marine Research, 7, 543–566.

    Chan, W.L. (1965) Anacanthobatis borneensis, the second new anacanthobatid skate from the South China Sea. Japanese Journal of Ichthyology, 13, 46–51.

    Chu, Y.–T., Meng, Q.–W., Hu, A.–S. & Li, S. (1981) Description of four new species, a new genus and a new family of elasmobranchiate fishes from deep sea of the South China Sea. Oceanologia et Limnologia Sinica, 12, 103–116.

    Chu, Y.–T., Meng, Q.–W., Hu, A.–S. & Li, S. (1982) Five new species of elasmobranchiate fishes from the deep waters of South China Sea. Oceanologia et Limnologia Sinica, 13, 301–311.

    Compagno, L.J.V. (2005) Checklist of living Chondrichthyes. In: Hamlett, W, editor. Reproductive Biology and Phylogeny of Chondrichthyes: Sharks, Batoids and Chimaeras. Enfield, New Hampshire, USA: Science Publishers, Inc. p 503–548.

    Deng, S.–M., Xiong, G.–Q. & Zhan, H.–X. (1983) Description of three new species of elasmobranchiate fishes from deep waters of the east China Sea. Oceanologia et Limnologia Sinica, 14 (1), 64–70.

    Ebert, D.A. & Compagno, L.J.V. (2007) Biodiversity and systematics of skates (Chondrichthyes: Rajiformes: Rajoidei). Environmental Biology Fishes 2007 (DOI 10.1007/s10641-007-9247-0, 14 pp).

    Eschmeyer, W.N. (2007) The catalog of fishes online. Available from: http://www.calacademy.org/research/ichthyology/catalog/fishcatsearch.html. (accessed 6 June, 2007).

    Hubbs, C.L. & Ishiyama, R. (1968) Methods for the taxonomic study and description of skates (Rajidae). Copeia, 1968, 483–491.

    Hulley, P.A. (1972) The origin, interrelationships and distribution of southern African Rajidae (Chondrichthyes, Batoidei). Annals of the South African Museum, 60, 1–103.

    Hulley, P.A. (1973) Interrelationships within the Anacanthobatidae (Chondrichthyes, Rajoidea), with a description of the lectotype of Anacanthobatis marmoratus von Bonde & Swart, 1923. Annals of the South African Museum, 62, 131–158.

    Ishihara, H. (1984) Second record of the rare skate Anacanthobatis borneensis from the East China Sea. Japanese Journal of Ichthyology, 30 (4), 448–451.

    Last, P.R. & Compagno, L.J.V. (1999) Anacanthobatidae, legskates. In: Carpenter, K.E. & Niem, V.H. (Eds.) FAO species Identification Guide for Fishery Purposes. The living marine resources of the Western Central Pacific. Volume 3. Batoid fishes, chimaeras and bony fishes part 1 (Elopidae to Linophrynidae). FAO, Rome, 1466 pp.

    Last, P.R. & McEachran, J.D. (2006) New softnose skate genus Brochiraja from New Zealand (Rajidae: Arhynchobatinae) with description of four new species. New Zealand Journal of Marine and Freshwater Research, 40, 65–90.

    Last, P.R. & Stevens, J.D. (1994) Sharks and Rays of Australia. CSIRO Publishing, Melbourne, 513 pp.

    Leviton, A.E., Gibbs Jr., R.H., Heal, E. & Dawson, C.E. (1985) Standards in herpetology and ichthyology: Part I. Standard symbolic codes for institutional resource collections in herpetology and ichthyology. Copeia, 1985, 802–832.

    McEachran, J.D. & Dunn, K.A. (1998) Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia, 1998, 271–290.

    Nelson, J. (2006) Fishes of the World. John Wiley & Son, 601 pp.

    Séret, B. (1986) Deep water skates of Madagascar. Part I. Anacanthobatidae (Pisces, Chondrichthyes, Batoidea), second record of the skate Anacanthobatis ori (Wallace, 1967) from off Madagascar. Cybium, 10, 307–326.

    Séret, B. (1994) Chondrichthyan fishes of the KARUBAR deep-sea expedition in Indonesian waters. In : Abstracts of the 4th Indo-Pacific Fish Conference Bangkok, Nov. Dec. 1994.

    von Bonde, C. & Swart, D.B. (1923) The Platosomia (skates and rays) collected by the S.S. "Pickle". Reports of the Fisheries and Marine Biological Survey of the Union of South Africa, 3, 1–22.

    Williams, A., Last, P.R., Gomon, M.F. & Paxton, J.R. (1996) Species composition and checklist of the demersal ichthyofauna of the continental slope off Western Australia (20–35° S). Records of the Western Australian Museum, 18, 135–155.