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Adenops dissimilis n. sp., de Peixe Rei: (fam. Atherinidae - subfam. Menidiinae)

Resumo

The study of the brazilian Atherinidae has not yet been developed. Besides Jordan & Hubb's work (1919, p. 187) and Schultz's revision, very little can be found on the matter. This explains the author's preocupation of examining sistematically the shoals he was given. As a result, a specimen of a genus not yet recorded for brazilian waters has been found in Cananéia, South coast of São Paulo State (Brazil), which has been properly named as Adenops by Schultz. The comparative study of this specimen in relation to those from Colombia and Venezuela, as well as the geographic isolation of the species have given the author the conviction of it being a new species not yet described to which he suggests the name of Adenops dissimilis n. sp. Table 1 presents the comparison of the supposed new species with A. analis and A. argenteus; it has been verified that there were divergencies not only on most of the biometric data but there were also divergents characteristics among the three species. Quick comments are made on the ecology; stomach content has been examined as well as the ecto and endo parasites the results compared with those of the Xenomelaniris brasiliensis (Quoy & Gaim.).


Adenops dissimilis n. sp., de Peixe Rei. (fam. Atherinidae - subfam. Menidiinae)

J. de Paiva Carvalho* * Trabalho executado sob os auspícios do Conselho Nacional de Pesquisas, do Rio de Janeiro.

SUMMARY

The study of the brazilian Atherinidae has not yet been developed. Besides Jordan & Hubb's work (1919, p. 187) and Schultz's revision, very little can be found on the matter. This explains the author's preocupation of examining sistematically the shoals he was given. As a result, a specimen of a genus not yet recorded for brazilian waters has been found in Cananéia, South coast of São Paulo State (Brazil), which has been properly named as Adenops by Schultz.

The comparative study of this specimen in relation to those from Colombia and Venezuela, as well as the geographic isolation of the species have given the author the conviction of it being a new species not yet described to which he suggests the name of Adenops dissimilis n. sp.

Table 1 presents the comparison of the supposed new species with A. analis and A. argenteus; it has been verified that there were divergencies not only on most of the biometric data but there were also divergents characteristics among the three species.

Quick comments are made on the ecology; stomach content has been examined as well as the ecto and endo parasites the results compared with those of the Xenomelaniris brasiliensis (Quoy & Gaim.).

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BIBLIOGRAFIA

CARVALHO, J. DE P. - 1953. Alimentação de Xenomelaniris brasiliensis (Quoy & Caimard) (Pisces - Mugiloidei - Atherinidae). Bol. Inst. Oceanogr., U. S. P., tomo IV, fasc. 1 e 2, p. 127-144.

______. 1954. Notulas Ictiológicas - III. Sobre a ocorrência de Xenomelaniris brasiliensis (Quoy & Gaimard) no litoral do E. de S. Paulo (Brasil) - (Pisces - Mugiloidei - Atherinidae). Bol. Inst. Oceanogr., tomo V, fase. 1 e 2, p. 241-256, 2 est.

DE BUEN, F. - 1953. Los pejerreyes (Fam. Atherinidae) en la fauna uruguaya, con descripción de nuevas especies. Bol. Inst. Oceanogr., U. S. P., tomo IV, fasc. 1 e 2, p. 3-80.

FOWLER, H. W. - 1951. The Brazilian and Patagonian fishes of the Wilkes Expedition - 1838-1842. Bol. Inst. Paulista de Oceanogr., tomo II, n.º 1, p. 3-39.

______. 1954. Os peixes de água doce do Brasil. Arquivos de Zoologia do E. de S. Paulo, vol. IX, IX+400 pp.

JORDAN, D. S., & HUBBS, C. L. - 1919. Studies in Ichthyology. A monographic review of the family Atherinidae or Silversides. Leland Stanf., Jun., Univ., Publ., - Univ. Ser., p. 1-87, fig. 1-42.

LAHILLE, F. - 1929. El Pejerrey. Extr. Boi. Min. Agrie, de la Nación tomo XXVIII, n.o 3, p. 261-395.

METCALF, M. M. - 1929. Parasites and the aid they give in problems of taxonomy, geographical distribution and paleogeography. Smith. Mis. Coll., vol. 81, fasc. 8, p. 1-36.

SCHULTZ, L. P. - 1948. A revision of six subfamilies of Atherinid fishes with description of new genera and species. Proc., U. S. Nat. Mus., vol. 98, p. 1-48, lam. 1-2.

SZIDAT, L. - 1955. La fauna de parásitos de "Merluccius hubbsi" como caracter auxiliar para la solución de problemas sistemáticos y zoogeográficos del genero "Merluccius" L., Comm. Inst. Nac. Inv. de las Ciencias Nat. - Ciencias Zoológicas, tomo III, n.º 1, p. 1-54.

WARD , H. B. - 1940. Internal parasites of the Sebago Salmon. Bull. U. S. Bur. Fish., vol. 28, p. 1151-1194.

(Recebido em 24-11-956)

  • CARVALHO, J. DE P. - 1953. Alimentação de Xenomelaniris brasiliensis (Quoy & Caimard) (Pisces - Mugiloidei - Atherinidae). Bol. Inst. Oceanogr., U. S. P., tomo IV, fasc. 1 e 2, p. 127-144.
  • ______. 1954. Notulas Ictiológicas - III. Sobre a ocorrência de Xenomelaniris brasiliensis (Quoy & Gaimard) no litoral do E. de S. Paulo (Brasil) - (Pisces - Mugiloidei - Atherinidae). Bol. Inst. Oceanogr., tomo V, fase. 1 e 2, p. 241-256, 2 est.
  • DE BUEN, F. - 1953. Los pejerreyes (Fam. Atherinidae) en la fauna uruguaya, con descripción de nuevas especies. Bol. Inst. Oceanogr., U. S. P., tomo IV, fasc. 1 e 2, p. 3-80.
  • FOWLER, H. W. - 1951. The Brazilian and Patagonian fishes of the Wilkes Expedition - 1838-1842. Bol. Inst. Paulista de Oceanogr., tomo II, n.ş 1, p. 3-39.
  • ______. 1954. Os peixes de água doce do Brasil. Arquivos de Zoologia do E. de S. Paulo, vol. IX, IX+400 pp.
  • JORDAN, D. S., & HUBBS, C. L. - 1919. Studies in Ichthyology. A monographic review of the family Atherinidae or Silversides. Leland Stanf., Jun., Univ., Publ., - Univ. Ser., p. 1-87, fig. 1-42.
  • METCALF, M. M. - 1929. Parasites and the aid they give in problems of taxonomy, geographical distribution and paleogeography. Smith. Mis. Coll., vol. 81, fasc. 8, p. 1-36.
  • SCHULTZ, L. P. - 1948. A revision of six subfamilies of Atherinid fishes with description of new genera and species. Proc., U. S. Nat. Mus., vol. 98, p. 1-48, lam. 1-2.
  • SZIDAT, L. - 1955. La fauna de parásitos de "Merluccius hubbsi" como caracter auxiliar para la solución de problemas sistemáticos y zoogeográficos del genero "Merluccius" L., Comm. Inst. Nac. Inv. de las Ciencias Nat. - Ciencias Zoológicas, tomo III, n.ş 1, p. 1-54.
  • WARD , H. B. - 1940. Internal parasites of the Sebago Salmon. Bull. U. S. Bur. Fish., vol. 28, p. 1151-1194.
  • *
    Trabalho executado sob os auspícios do Conselho Nacional de Pesquisas, do Rio de Janeiro.
  • Datas de Publicação

    • Publicação nesta coleção
      15 Jun 2012
    • Data do Fascículo
      Dez 1956
    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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