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Skull morphometrics of adult male Antartic fur seal, Arctocephalus gazella, and South American fur seal A. australis Iheringia, Sér. Zool.
Daneri,Gustavo A.; Esponda,César M. García; De Santis,Luciano J. M.; Pla,Laura.
The skull morphometrics of adult male Antarctic fur seal, Arctocephalus gazella (Peters, 1875) and South American fur seal, A. australis (Zimmermann, 1783) were investigated using a collection of 45 and 38 skulls, respectively. Eighteen measurements were taken for each specimen. Comparative univariate and multivariate statistical analyses included standard statistics, one-way analysis of variance, principal component analysis and discriminant analysis. Individual variation was relatively high for some variables, as expressed by the coefficient of variation. Skulls of A. gazella were larger than those of A. australis for all but two variables: squamosal jugal suture and rostral length. Both species differed significantly as shown by both univariate and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arctocephalus; Otariidae; Cranial characteristics.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212005000300006
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On the presence of a vagrant Juan Fernández fur seal (Arctocephalus philippii) in the Pacific coast of Colombia: a new extralimital record Mastozool. neotrop.
Avila,Isabel Cristina; Alava,Juan José; Galvis Rizo,Carlos Andrés.
We report the first record of a male Juan Fernández fur seal, Arctocephalus philippii (Peters, 1866), in the Colombian Pacific coast. The animal was mainly identified according to the external morphology of the head and snout. This observation is the first northernmost record for A. philippii in the Southeastern Pacific, with an extreme movement covering a total distance of approximately 3700-4600 km from its normal geographic range, including the Juan Fernández Archipelago and Desventuradas Islands (San Félix and San Ambrosio), Chile. This finding indicates that vagrant individuals can reach new sites in the Northern Hemisphere and could have a broader geographical displacement than previously thought.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Colombia; Lobo fino de Juan Fernández; Otariidae; Pacífico sureste; Pinípedo.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832014000100011
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Anomalias e patologias dentárias em Arctocephalus G. Saint-Hilaire & Cuvier (Pinnipedia, Otariidae) da costa do Rio Grande do Sul, Brasil Zoologia
Drehmer,César Jaeger; Ferigolo,Jorge.
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.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pinnipedia; Otariidae; Arctocephalus; Anomaly; Pathology; Teeth.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400008
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