Morphology of the Gas Bladder in Sea Catfishes (Siluriformes: Ariidae)


Autoria(s): MARCENIUK, Alexandre P.; BIRINDELLI, Jose L. O.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

20/10/2012

20/10/2012

2010

Resumo

The morphology of the gas bladder and associated structures in sea catfishes (Siluriformes: Ariidae) is studied. The most simple gas bladder, exclusive to Galeichthys Valenciennes, is apple-shaped with weakly developed internal trabeculae, has smooth walls externally and a short Mullerian window associated with a broad, short Mullerian ramus that is firmly attached to Baudelot`s ligament and supracleithrum. Most genera of Ariidae have a cordiform bladder with well-developed trabeculae, smooth walls externally, an elongate Mullerian window and an elongate Mullerian ramus with an acute tip that is free from the Baudelot`s ligament and supracleithrum. Sciades proops (Valenciennes) and S. parkeri (Traill) have a similar gas bladder but with a well-developed secondary chamber. Other genera of Ariidae also have a cordiform bladder with well-developed trabeculae and elongate Mullerian window, but with lateral diverticula present as shallow rounded bulges or blister-like swellings along the peripheral margins of the bladder. The degree of development of lateral diverticula varies among and within species, with Osteogeneiosus Bleeker having the most highly-developed diverticula. Bagre pinnimaculatus (Steindachner) and Bagre bagre (Linnaeus) have unusual depressed gas bladders with complex network of internal trabeculae. The implications of gas bladder morphology for the taxonomy and phylogenetic relationships of the family are discussed.

Fundacao de Amparo a Pesquisa do estado de Sao Paulo (FAPESP)[03/04509-3]

Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)

Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)

Fundacao de Amparo a Pesquisa do estado de Sao Paulo (FAPESP)[06/53737-7]

Conselho Nacional de Desenvolvimento Cientifico e Tecnologico of the Brazilian Federal Government (CNPq)

Conselho Nacional de Desenvolvimento Cientifico e Tecnologico of the Brazilian Federal Government (CNPq)[152782/2007-9]

Identificador

ZOOTAXA, n.2579, p.59-68, 2010

1175-5326

http://producao.usp.br/handle/BDPI/32260

http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000281327500004&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord

Idioma(s)

eng

Publicador

MAGNOLIA PRESS

Relação

Zootaxa

Direitos

restrictedAccess

Copyright MAGNOLIA PRESS

Palavras-Chave #systematics #phylogeny #taxonomy #anatomy #OSTARIOPHYSI #SYSTEMATICS #Zoology
Tipo

article

original article

publishedVersion