Anomalias e patologias dentárias em Arctocephalus G. Saint-Hilaire &amp; Cuvier (Pinnipedia, Otariidae) da costa do Rio Grande do Sul, Brasil

Drehmer, César Jaeger; Ferigolo, Jorge

doi:10.1590/S0101-81751996000400008

Resumo

The studied species were Arctocephalus australis (Zimmermann, 1783) and Arctocephalus tropicalis (Gray, 1872), (five specimens of each one). Anomalies were discussed under the light of theories which relate the ancestry of pinnipeds with the Ursidae; as well as concerning the evolutionary trends supposed for the Otariidae. Pathologies were related to alimentary and reproductive habits.

Pinnipedia; Otariidae; Arctocephalus; anomaly; pathology; teeth

Anomalias e patologias dentárias em Arctocephalus G. Saint-Hilaire & Cuvier (Pinnipedia, Otariidae) da costa do Rio Grande do Sul, Brasil¹ 1 Curso de Pós-graduação em Biociência, Pontifíca Univerdade Católica do Rio grande do Sul

Tooth anomalies and pathologies in Arctocephalus G. Saint-Hilaire & Cuvier (Pinnipedia, Otariidae) of Rio Grande do Sul coast, Brazil

César Jaeger Drehmer; Jorge Ferigolo

Curso de Pós-graduação em Biociências, Pontifícia Universidade Católica do Rio Grande do Sul

ABSTRACT

The studied species were Arctocephalus australis (Zimmermann, 1783) and Arctocephalus tropicalis (Gray, 1872), (five specimens of each one). Anomalies were discussed under the light of theories which relate the ancestry of pinnipeds with the Ursidae; as well as concerning the evolutionary trends supposed for the Otariidae. Pathologies were related to alimentary and reproductive habits.

Key words: Pinnipedia, Otariidae, Arctocephalus, anomaly, pathology, teeth

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AGRADECIMENTOS. A CAPES e ao CNPq, através do seu programa RHAE, que financiaram a execução deste trabalho e a Fundação Zoobotânica do Rio Grande do Sul que deu suporte ao desenvolvimento deste. Ao colega J. L. Maciel pelo auxílio na confecção das fotografias.

Recebido em 08.V.1996; aceito em 02.XII.1996.

¹
Barnes, L.G. 1989. A new enaliarctine pinniped from the Astoria Formation, Oregon, and a classification of the Otariidae (Mammalia:Carnívora). Contr. Science, Los Angeles, 403:1-26.
Berta, A. 1991. New Enaliarctos* (Pinnipedimorpha) from the Oligocene and Miocene of Oregon and the Role of "Enaliarctids" in Pinniped Phylogeny. Smithson. Contr. Paleob., Washington, 69:1-33.
Bonner, W.N. 1981. Southern Fur Seals - Arctocephalus (Geoffroy Saint-Hilaire and Cuvier, 1826), p. 161-208. In: S.H. Ridgway & R.J. Harrison (Eds). Handbook of Marine Mammals. The Walrus, Sea Lions, Fur Seals and Sea Otter. New York, Academic Press, vol. I, XIV+235p.
Chiasson, R.B. 1955. Dental abnormalities of the Alaskan Fur seal. Jour. Mammal., Baltimore, 36 (4):562-564.
Frechkop, S. 1955. Ordre des Pinnipèdes, p. 292-340. In: P. Grassé (Ed.). Traité de Zoologie. Mammifères, Les Ordres: Anatomie, Éthologie, Systématique. Paris, Masson et Cie, tome XVII, fasc. 1, 1170p.
Hamilton, J.E. 1934 The southern sea lion Otaria hyronia (de Blainville). Discovery Rep., Cambridge, 8:269-318.
King, J.E. 1954. The otariid seals of the Pacific Coast of America. Bull. Br. Mus. nat. Hist. Zool., London, 2 (10):309-337.
Kubota K. & S. Togawa. 1964. Numerical Variations in the Dentition of some Pinnipeds. Anat. Rec., Philadelphia, 150:487-502.
Loughlin, T.R. 1982. Functional adaptation of eruption sequence of pinniped postcanine teeth. Jour. Mammal., Baltimore, 63 (3):523-525.
Muizon, C. DE. 1978. Arctocephalus (Hydrarctos) lomasiensis, subgen. nov. et nov. sp., un nouvel Otariidae du Mio-Pliocene de Sacaco (Perou). Bull. Inst. Fr. Et. And., Paris, 7 (3-4):169-188.
Repenning, C.A.; R.S. Peterson & C.L. Hubbs. 1971. Contributions to the systematics of the Southern fur seals, with particular reference to the Juan Fernández and Guadalupe species. Antarctic Res. Ser., Washington, 18:1-34.
Simões-Lopes, P.C.; C.J. Drehmer & P.H. Ott. 1995. Nota sobre os Otariidae e Phocidae (Mammalia, Carnivora) da costa norte do Rio Grande do Sul e Santa Catarina, Brasil. Biociências, Porto Alegre, 3 (1):173-181.
Wyss, A.R. 1987. The walrus auditory region and the monophyly of the pinnipeds. Am. Mus. Novit., New York, 2871:1-31.
Ximénez, I.; M. Lima; A. Ponce de León; L.M. Batallés & A. Malek. 1984. Estudio Estadístico de Relaciones Craneales en el "Lobo Fino" Sudamericano, Arctocephalus australis (Zimmermann, 1783). An. Ind. Lobera Pesq. Estado, Montevidéo, 33p.

1

Curso de Pós-graduação em Biociência, Pontifíca Univerdade Católica do Rio grande do Sul

Datas de Publicação

Publicação nesta coleção
13 Jul 2009
Data do Fascículo
1996

Histórico

Recebido
08 Maio 1996
Aceito
02 Dez 1996

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

[1] ¹
Barnes, L.G. 1989. A new enaliarctine pinniped from the Astoria Formation, Oregon, and a classification of the Otariidae (Mammalia:Carnívora). Contr. Science, Los Angeles, 403:1-26.

[2] Berta, A. 1991. New Enaliarctos* (Pinnipedimorpha) from the Oligocene and Miocene of Oregon and the Role of "Enaliarctids" in Pinniped Phylogeny. Smithson. Contr. Paleob., Washington, 69:1-33.

[3] Bonner, W.N. 1981. Southern Fur Seals - Arctocephalus (Geoffroy Saint-Hilaire and Cuvier, 1826), p. 161-208. In: S.H. Ridgway & R.J. Harrison (Eds). Handbook of Marine Mammals. The Walrus, Sea Lions, Fur Seals and Sea Otter. New York, Academic Press, vol. I, XIV+235p.

[4] Chiasson, R.B. 1955. Dental abnormalities of the Alaskan Fur seal. Jour. Mammal., Baltimore, 36 (4):562-564.

[5] Frechkop, S. 1955. Ordre des Pinnipèdes, p. 292-340. In: P. Grassé (Ed.). Traité de Zoologie. Mammifères, Les Ordres: Anatomie, Éthologie, Systématique. Paris, Masson et Cie, tome XVII, fasc. 1, 1170p.

[6] Hamilton, J.E. 1934 The southern sea lion Otaria hyronia (de Blainville). Discovery Rep., Cambridge, 8:269-318.

[7] King, J.E. 1954. The otariid seals of the Pacific Coast of America. Bull. Br. Mus. nat. Hist. Zool., London, 2 (10):309-337.

[8] Kubota K. & S. Togawa. 1964. Numerical Variations in the Dentition of some Pinnipeds. Anat. Rec., Philadelphia, 150:487-502.

[9] Loughlin, T.R. 1982. Functional adaptation of eruption sequence of pinniped postcanine teeth. Jour. Mammal., Baltimore, 63 (3):523-525.

[10] Muizon, C. DE. 1978. Arctocephalus (Hydrarctos) lomasiensis, subgen. nov. et nov. sp., un nouvel Otariidae du Mio-Pliocene de Sacaco (Perou). Bull. Inst. Fr. Et. And., Paris, 7 (3-4):169-188.

[11] Repenning, C.A.; R.S. Peterson & C.L. Hubbs. 1971. Contributions to the systematics of the Southern fur seals, with particular reference to the Juan Fernández and Guadalupe species. Antarctic Res. Ser., Washington, 18:1-34.

[12] Simões-Lopes, P.C.; C.J. Drehmer & P.H. Ott. 1995. Nota sobre os Otariidae e Phocidae (Mammalia, Carnivora) da costa norte do Rio Grande do Sul e Santa Catarina, Brasil. Biociências, Porto Alegre, 3 (1):173-181.

[13] Wyss, A.R. 1987. The walrus auditory region and the monophyly of the pinnipeds. Am. Mus. Novit., New York, 2871:1-31.

[14] Ximénez, I.; M. Lima; A. Ponce de León; L.M. Batallés & A. Malek. 1984. Estudio Estadístico de Relaciones Craneales en el "Lobo Fino" Sudamericano, Arctocephalus australis (Zimmermann, 1783). An. Ind. Lobera Pesq. Estado, Montevidéo, 33p.

Brasil

Brasil

Anomalias e patologias dentárias em Arctocephalus G. Saint-Hilaire & Cuvier (Pinnipedia, Otariidae) da costa do Rio Grande do Sul, Brasil

Tooth anomalies and pathologies in Arctocephalus G. Saint-Hilaire & Cuvier (Pinnipedia, Otariidae) of Rio Grande do Sul coast, Brazil

Resumo

Datas de Publicação

Histórico