Environmental Biology of Fishes

, Volume 31, Issue 1, pp 95–100 | Cite as

Occurrence of two species of stingrays of the genusDasyatis (Chondrichthyes) in the Sanaga Basin, Cameroun

  • Toru Taniuchi
Article

Synopsis

Two species of the genusDasyatis were collected in the lower Sanaga Basin in the vicinity of Edéa, Cameroun, West Africa, during a survey from November 1985 to January 1986. Of these specimens, 34 were identified asD. garouaensis and one asD. ukpam. Thirty-one specimens ofD. garouaensis and oneD. ukpam were caught in the lower reaches of the Sanaga River while three were taken at the junction between the Nyong River and the channel connecting the two rivers. The distribution pattern of the two species is discussed.

Key words

Elasmobranchs Dasyatidae D. garouaensis D. ukpam Freshwater Edéa Nyong River West Africa 

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References cited

  1. Bigelow, H.B. & W.C. Schroeder. 1953. Sawfishes, guitarfishes, skates and rays. pp. 1–514.In:Fishes of the western North Atlantic, Mem. Sears Found. Mar. Res. 1.Google Scholar
  2. Compagno, L.J.V. & T.R. Roberts. 1984. Marine and freshwater stingrays (Dasyatidae) of West Africa with description of a new species. Proc. Calif. Acad. Sci. 43: 283–300.Google Scholar
  3. Smith, J.A. 1863. Notice of the ukpam, a large species (probably new) of stingray (Trygon, Cuv.) found in the Old Calabar River, Africa. Proc. Roy. Phys. Soc. Edinburgh 2: 64–69.Google Scholar
  4. Stauch, A. & M. Blanc. 1962. Description d'un sélacien rajiforme des eaux douces du Nord-Cameroun,Potamotrygon garouaensis n. sp. Bull. Mus. Nat. Hist. Natr. (Paris) 34: 166–171.Google Scholar
  5. Thorson, T.B. & D.E. Watson. 1975. Reassignment of the African freshwater stingray,Potamotrygon garouaensis, to the genusDasyatis, on physiologic and morphologic grounds. Copeia 1975: 701–712.Google Scholar

Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • Toru Taniuchi
    • 1
  1. 1.Department of Fisheries, Faculty of AgricultureThe University of TokyoBunkyo-kuJapan

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