Foregut morphology of Pseudothelphusidae and Trichodactylidae (Decapoda: Brachyura) from northeastern Pará, Brazil
| Autor: | Jô de Farias Lima, Soraya Tatiana Macêdo Alves, Fernando Araújo Abrunhosa |
|---|---|
| Přispěvatelé: | Soraya Tatiana M. Alves, Laboratório de Carcinologia, Instituto de Estudos Costeiros, Campus Universitário de Bragança, Universidade Federal do Pará, Fernando A. Abrunhosa, Laboratório de Carcinologia, Instituto de Estudos Costeiros, Campus Universitário de Bragança, Universidade Federal do Pará, JO DE FARIAS LIMA, CPAF-AP. |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Rio Caeté - PA
Pará - Estado Amazon region Morfologia animal Ossicle morphology lcsh:Zoology medicine lcsh:QL1-991 Morfologia Bragança - PA Trichodactylidae Anomura biology Ossicles Decapoda Foregut Crustáceo Anatomy biology.organism_classification Caranguejo de água doce Neotropic Amazônia brasileira Freshwater crabs medicine.anatomical_structure Animal Science and Zoology Freshwater crab stomach Pseudothelphusidae Caranguejo |
| Zdroj: | Zoologia (Curitiba), Vol 27, Iss 2, Pp 228-244 (2010) Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA Zoologia (Curitiba), Volume: 27, Issue: 2, Pages: 228-244, Published: APR 2010 Repositório Institucional da UFPA Universidade Federal do Pará (UFPA) instacron:UFPA Zoologia (Curitiba) v.27 n.2 2010 Zoologia (Curitiba. Online) Sociedade Brasileira de Zoologia instacron:SBZ |
| ISSN: | 1984-4689 1984-4670 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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