Abstract
A new stingray, Pastinachus solocirostris sp. nov., is described from material collected from Malaysian Borneo and Indonesia. It differs from the only other recognised member of the genus, P. sephen, in having a smaller adult size, more elongate disc and head, longer and more acute snout covered to its apex with enlarged denticles, more posteriorly located sting, longer and more slender ventral cutaneous fold, enlarged pearl-shaped nuchal thorns, and fewer pectoral-fin radials and vertebrae. It appears to occur primarily in estuaries and turbid coastal marine habitats off Borneo and Sumatra.References
Bonfil, R. & Abdallah, M. (2004) Field Identification Guide to the Sharks and Rays of the Red Sea and Gulf of Aden. FAO, Rome.
Chabanaud, P. (1923) Description de deux Plagiostomiens nouveaux d'Indo–Chine, appartenant au genre Dasybatus (Trygon). Bulletin Du Museum D’Histoire Naturelle [Paris], (no. 1), 45–50.
Compagno, L.J.V. (2000) Elasmobranchii. In: Randall, J.E. and Lim, K.K.P. (Ed) A checklist of the fishes of the South China Sea. Raffles Bulletin of Zoology 2000 Supplement No. 8, 569–667.
Compagno, L.J.V., & Heemstra, P.C. (1984) Himantura draco, a new species of stingray (Myliobatiformes: Dasyatidae) from South Africa, with a key to the Dasyatidae and the first record of Dasyatis kuhlii (Müller and Henle, 1841) from Southern Africa. J.L.B. Smith Institute of Ichthyology Special Publication No.33.
Eschmeyer, W.N. (Ed) (2005) The Catalog of Fishes Online. California Academy of Sciences website: http://www.calacademy.org/research/ichthyology/catalog/fishcatsearch.html.
Forsskål, P. (1775) Descriptiones animalium avium, amphibiorum, piscium, insectorum, vermium; quae in itinere orientali observavit. Post mortem auctoris edidit Carsten Niebuhr. Hauniae. Descr. Animalium: 1–20 + i–xxxiv + 1–164, map.
Hamilton, F. (1822) An account of the fishes found in the river Ganges and its branches. Edinburgh & London. Fishes Ganges: i–vii + 1–405, Pls. 1–39.
Last, P.R. & Compagno, L.J.V. (1999) Dasyatidae (Stingrays). In: Carpenter, K.E. and Niem, V.H. (Ed) Species identification guide for fisheries purposes. The living marine resources of the western central Pacific. Batoid fishes, chimeras and bony fishes part 1 (Elopidae to Linophrynidae), FAO, Rome.
Last, P.R. & Stevens, J.D (1994) Sharks and rays of Australia. Commonwealth Scientific and Industrial Research Organisation, 1–513, col. pls. 1084.
Macleay, W. (1883) Contribution to a knowledge of the fishes of New Guinea. No. III. Proceedings of the Linnean Society of New South Wales, v. 7 (pt 4), 585–598.
Manjaji, B.M. (2004) Taxonomy and phylogenetic systematics of the stingray genus Himantura (Family Dasyatidae). PhD. Dissertation, University of Tasmania. Volumes 1 & 2, i–xxii; 607 pp.
Manjaji, B.M. & Last, P.R. (in press) Description of a new whipray, Himantura _________ sp. nov., from Borneo with comments on the status of the smalleye stingray, Dasyatis microphthalma Chen. Ichthyological Research.
Müller, J. & Henle, F.G.J. (1837) Ueber die Gattungen der Plagiostomen. Archiv Naturgeschichte, v. 3, 394–401, 434.
Nishida, K. & Nakaya, K. (1990) Taxonomy of the genus Dasyatis (Elasmobranchii, Dasyatididae) from the North Pacific. NOAA Technical Report NMFS, No. 90, 327–346.
Roberts, T.R. (1998) Francis Hamilton and the freshwater stingrays described in his Gangetic fishes (1822). Archives of Natural Hististory, v. 25 (no. 2), 267–280.
Rüppell, W.P.E.S. (1829) Atlas zu der Reise im nördlichen Africa. Fische des Rothen Meeres. Frankfurt-am-Main. Fische Rothen Meeres 1828–30. Part 2 (1829), 27–94, Pls. 7–24.
Séret, B. & McEachran, J.D. (1986) Catalogue critique des types de Poissons du Museum national d'Histoire naturelle. (Suite). Poissons Batoïdes (Chondrichthyes, Elasmobranchii, Batoidea). Bulletin Museum National d’Histoired Naturelle [Paris] Ser. 4, Sect. A v. 8 (no. 4), 3–50.
Talwar, P.K. & Jhingran, A.G. (1991) Inland fishes of India and adjacent countries. In 2 vols. Oxford & IBH Publishing Co., New Delhi, Bombay, Calcutta. Inland fishes, India v. 1–2: i–xvii + 36 unnumbered + 1–1158, 1 map.