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On an interesting specimen of cownose ray (Pisces: Rhinopteridae) from the Colombian Caribbean

Abstracts

The collection of a specimen of cownose ray in the Colombian Caribbean is reported. Based on the presence of 9 rows of teeth in both jaws, it was identified as Rhinoptera Müller & Renie. The range of the species is extended 7,300 km, from Rio de Janeiro to Isla de Salamanca. Some comments on the size at birth and habits of the species are made.


Se registra la colecta de un especimen de raya de la familia Rhinopteridae en el Caribe colombiano, el cual tiene 9 filas de dientes en ambas mandíbulas. Este carácter lo incluye en la especie Rhinoptera brasiliensis Müller & Henle, extendiendo su rango 7.300 km, de Rio de Janeiro hasta la Isla de Salamanca. Se hacen comentários sobre la talla de nacimiento y los hábitos de la especie.


ARTIGOS

On an interesting specimen of cownose ray (Pisces: Rhinopteridae) from the Colombian Caribbean

Arturo Acero PI,II,* * INVEMAR - Apartado Aereo 1016, Santa Marta, Colombia. ; Jaime Garzón FI,* * INVEMAR - Apartado Aereo 1016, Santa Marta, Colombia.

IInstituto de Investigaciones Marinas de Punta de Betín (INVEMAR)

IIRosenstiel School of Marine and Atmospheric Science, University of Miami

SYNOPSIS

The collection of a specimen of cownose ray in the Colombian Caribbean is reported. Based on the presence of 9 rows of teeth in both jaws, it was identified as Rhinoptera Müller & Renie. The range of the species is extended 7,300 km, from Rio de Janeiro to Isla de Salamanca. Some comments on the size at birth and habits of the species are made.

RESUMEN

Se registra la colecta de un especimen de raya de la familia Rhinopteridae en el Caribe colombiano, el cual tiene 9 filas de dientes en ambas mandíbulas. Este carácter lo incluye en la especie Rhinoptera brasiliensis Müller & Henle, extendiendo su rango 7.300 km, de Rio de Janeiro hasta la Isla de Salamanca. Se hacen comentários sobre la talla de nacimiento y los hábitos de la especie.

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Acknowledgments

The specimen was brought to our attention by O. Galvis, J. Gallo, L. Pérez, D. Zamorano and S. Zea. Drs. J. D. McEachran (Texas A&M University, College Station, TX, U.S.A), N. A. Menezes (Museu de Zoologia, Universidade de São Paulo, São Paulo, Brasil) and M. Stehmann (Institut für Seefischerei, Hamburg, West Germany) kindly commented on the case. D. J. Gordon corrected the English text.

COLCIENCIAS sponsors the ichthyological work of the authors. Contribution No 242, INVEMAR.

(Manuscript received on 01/Dec./1981; accepted on 14/Sep./1982)

Addendum

When this paper was in press the authors examined 3 more specimens of Rhinoptera brasiliensis which were collected on May 4 and September 22, 1982 in the same locality and conditions as the first individual. These specimens, which are also juveniles (disc breadth 305 - 445 mm), have 9 rows of teeth in both upper and lower jaws. The capture of these fishes confirms the inconsistence of Schwartz (1965) conclusions about the status of the cownose rays in the western Atlantic.

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  • DAHL, G. 1971. Los peces del norte de Colombia. Bogota, INDERENA, 391 p.
  • FIGUEIREDO, J. L. de 1977. Manual de peixes marinhos do Sudeste do Brasil. I. Introdução. Cações, raias e quimeras. São Paulo, Museu de Zoologia da Universidade de Sao Paulo, 104 p.
  • ROUX, C. 1979. Poisson chondrichthyens du plateau continental brésilien et du Río de la Plata. Campagne de la Calypso au large des côtes atlantiques de l'Amerique du Sud (1960-1961). Première partie. Annls Inst. oceanogr., Monaco, 55(11):111-130.
  • SCHWARTZ, F. J. 1965. Inter-American migrations and systematics of the western Atlantic cownose ray, Rhinoptera bonasus (abstract): 1. In: Association of Island Marine Laboratories of the Caribbean, Sixth Meeting, Isla de Margarita, Venezuela, 18 p.
  • *
    INVEMAR - Apartado Aereo 1016, Santa Marta, Colombia.
  • Publication Dates

    • Publication in this collection
      04 June 2012
    • Date of issue
      1982

    History

    • Received
      01 Dec 1981
    • Accepted
      14 Sept 1982
    Instituto Oceanográfico da Universidade de São Paulo Praça do Oceanográfico, 191, 05508-120 São Paulo SP Brasil, Tel.: (55 11) 3091 6513, Fax: (55 11) 3032 3092 - São Paulo - SP - Brazil
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