www.fao.org Copyright Michel Lamboeuf · 0 Rhinoptera steindachneri Click on images or map to enlarge and for details. 80x5 - 240x3 - 240x4 - 320x1 - 320x2 - 320x3 - 640x1 - 640x2 Set display option above. Click on images to enlarge. © Copyright Roger Steene, 2006 · 0 Rhinoptera steindachneri © Copyright Photographer/SFTEP, 2002 · 0 Rhinoptera steindachneri © Copyright Photographer/SFTEP, 2002 · 0 Rhinoptera steindachneri © Copyright Photographer/SFTEP, 2002 · 0 Rhinoptera steindachneri

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Fish Fish species NCSM SFTEP

Overview

Main identification features disc rhomboidal, width greater than length golden brown tail slender, + spines head large, square, flaps and notch at front Golden cownose-ray, Pacific cownose-ray, Hawkray A diamond-shaped ray with head distinctly protruding from disc; head with "wings" along side and front; teeth in 6-9 plates in top and bottom; width of disc about 1.7-1.8 times its length; tail with 1-2 serrated spines, their length about 2.5 times eye width; tail very slender, about 1.2-1.6 times length of disc; skin smooth. Overall pale yellowish brown, white on ventral surface; tail blackish. Grows to about 104 cm disc width. Inhabits coastal lagoons, often forms large schools in mangrove areas. Depth: to 30 m. Central Baja and the Gulf of California to Peru, the Galapagos and Malpelo. Attributes Abundance: Common. Cites: Not listed. Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ); North Temperate (Californian Province &/or Northern Gulf of California). Depth Range Max: 30 m. Depth Range Min: 0 m. Diet: mobile benthic crustacea (shrimps/crabs); mobile benthic gastropods/bivalves. Eastern Pacific Range: Northern limit=32; Southern limit=-6; Western limit=-115; Eastern limit=-78; Latitudinal range=38; Longitudinal range=37. Egg Type: Live birth; No pelagic larva; No pelagic phase. Feeding Group: Carnivore. FishBase Habitat: Reef Associated. Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species. Habitat: Beach; Estuary; Mud; Sand & gravel; Soft bottom only; Soft bottom (mud, sand,gravel, beach, estuary & mangrove). Inshore Offshore: Inshore; Inshore Only. IUCN Red List: Not evaluated / Listed. Length Max: 104 cm. Regional Endemism: Island (s); Continent; Continent + Island (s); TEP endemic; All species. Residency: Resident. Salinity: Brackish; Marine. Water Column Position: Bottom; Mid Water; Near Bottom; Near Surface; Surface; Bottom + water column;

Names

Scientific source:

Integrated Taxonomic Information System

Links to other sites

Fishbase Catalog of Fishes Integrated Taxonomic Information System

References

Acero , A. and Franke, R., 1995., Nuevos registros de peces cartilaginosos del Parque Nacional Natural Gorgona (Pacifico Colombiano), II. Rayas y Descripcion de una Nueva Especie., Bibl. J. J. Triana, 11:9-21. Acero, A. and Franke, R., 2001., Peces del parque nacional natural Gorgona. En: Barrios, L. M. y M. Lopéz-Victoria (Eds.). Gorgona marina: Contribución al conocimiento de una isla única., INVEMAR, Serie Publicaciones Especiales No. 7:123-131. Beebe , W. and Tee-Van, J., 1941., Eastern Pacific expeditions of the New York Zoological Society. XXVIII. Fishes from the tropical eastern Pacific. (From Cedros Island, Lower California, South to the Galápagos Islands and northern Peru.) Part 3. Rays, mantas and chimaeras., Zoologica, 26(3):245-280. Breder, C.M. Jr., 1928., Scientific results of the second oceanographic expedition of the "Pawnee" 1926. Elasmobranchii from Panama to Lower California., Bull. Bingham Oceanogr. Collect. Yale Univ., 2(1):1-13. Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741. Castri-Aguirre, J.L., Espinoza-Pérez, H. and Schmitter-Soto, J.J., 2002., Lista sitemática, biogeográfica y ecológica de la ictiofauna estuarino lagunar y vicaria de México. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:117-142. Castro-Aguirre, J.L., 1999., Ictiofauna estuarino-lagunar y vicaria de México., Editorial Limusa S.A. de C.V.: 1-629pp. Compagno, L.J.V., 1999., Checklist of living elasmobranchs. In Hamlett W.C. (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes., The John Hopkins University Press:471-498. De la Cruz , J. , Galvan , F. , Abitia , L. A. , Rodriguez , J. and Gutierrez, F. J., 1994., Lista sistematica de los peces marinos de Bahia Magdalena, Baja California Sur (Mexico). Systematic List of marine fishes from Bahia Magdalena, Baja California Sur (Mexico)., Ciencias Marinas, 20:17-31. Evermann , B.W. and Jenkins, O.P., 1891., Report upon a collection of fishes made at Guaymas, Sonora, Mexico, with descriptions of new species., Proc. U.S. Nat. Mus., 14:121-165. Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional. Fowler, H.W., 1916., Cold-Blooded Vertebrates from Costa Rica and the Canal Zone., Proc. Acad. Nat. Sci. Phila., 68:389-414. Galván-Magaña, F., Gutiérrez-Sánchez, F., Abitia-Cárdenas, L.A., Rodríguez-Romero, J., 2000., The distribution and affinities of the shore fishes of the Baja California Sur lagoons. In Aquatic Ecosystems of Mexico: Status and Scope. Eds. M. Manuwar, S.G. Lawrence, I.F. Manuwar & D.F. Malley. Ecovision World Monograph Series., Backhuys Publishers:383-398. Humann, P., 1993., Reef Fish Identification: Galapagos., New World Publishing:192pp. Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2. Jordan , D.S. and Evermann, B.W., 1896., The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Part I., Bull. U.S. Nat. Mus., 47:1-1240. Lopez , M. I. and Bussing, W. A., 1982., Lista provisional de los peces marinos de la Costa Rica., Revista de Biologia Tropical, 30(1):5-26. Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp. Minckley, W.L., 2002., Fishes of the lowermost colorado river, its delta, and estuary: a commentary on biotic change. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:63-78. Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.

Acknowledgements

Ross Robertson, Smithsonian Tropical Research Institute I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.

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