Data/hora: 07/06/2024 07:25:50

Provedor de dados: | 103
País: | Brazil
Título: | Foregut morphology of Pseudothelphusidae and Trichodactylidae (Decapoda: Brachyura) from northeastern Pará, Brazil
Autores: | Alves,Soraya Tatiana M.; Abrunhosa,Fernando A.; Lima,Jô de F.
Data: | 2010-04-01
Ano: | 2010
Palavras-chave: | Freshwater crabs; Morphology; Stomach; Amazon region; Neotropic.
Resumo: | The gross morphology of foregut was investigated and described in detail for four freshwater crab species: a pseudothelphusid, Fredius reflexifrons (Ortmann, 1897) and three trichodactylids - Sylviocarcinus pictus (H. Milne-Edwards, 1853), Valdivia serrata White, 1847, and Dilocarcinus septemdentatus (Herbst, 1783). In general, the gastric mills of freshwater crabs showed a similar degree of complexity in relation to other marine species of Anomura and Brachyura previously described in the literature. However, significant morphological differences were observed among the analyzed species, as in ossicle numbers, features and connection types. A total of 38 ossicles were described for S. pictus and V. serrata and 37 ossicles for D. septemdentatus and F. reflexifrons, respectively. The latter species can be distinguished from the others by the presence of a wide cardiac sac resembling two sacs. Most of the ossicles were connected through a rigid connection, and few ossicles were fused. The degree of calcification varied little among the studied species. The differences found among the species suggest that the morphological aspects of the foregut may be useful in the identification of similar species.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000200011
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S1984-46702010000200011
Formato: | text/html
Fonte: | Zoologia (Curitiba)  v.27 n.2 2010
Fonte: | info:eu-repo/semantics/openAccess