Fransozo, Adilson [UNESP]Teixeira, Gustavo MonteiroGomes, Rafael Rocco [UNESP]Silva, José CarlosBolla Jr., Eduardo Antonio [UNESP]2014-05-272014-05-272012-01-01Acta Scientiarum - Biological Sciences, v. 34, n. 1, p. 101-104, 2012.1679-92831807-863Xhttp://hdl.handle.net/11449/73141Deformities and abnormalities in crustaceans have been associated to genetic problem, which occurred during molt process, damage caused by ectobionts, predators or environmental stress caused by chemical wastes. Some crab specimens collected in the São Paulo littoral were found having body abnormalities. They belong to the following crab species: Callinectes ornatus (Ordway, 1863), Arenaeus cribrarius (Lamarck, 1818) and Leurocyclus tuberculosus (H. Milne Edwards; Lucas, 1843). Samplings were performed by trawling during July 2008, August and October 2009 at the Ubatuba region, São Paulo State, Brazil. Body abnormalities were verified in the cheliped dactyl (C. ornatus an adult male), carapace deformities (A. cribrarius an adult male) and abdominal alterations (C. ornatus an adult female; L. tuberculosus an adult male and an ovigerous female). The record and analysis of such occurrences can help in the distinction of natural or human impact caused alterations. In this way, the occurrence study of this kind of body alterations could provide tools in order to control unprotected environmental areas, as well as bring subsides to understand the unusual variations during the ontogeny of important species in the benthic community.101-104engArenaeus cribrariusCallinectes ornatusChelipeds and carapaceCrabs abnormalitiesLeurocyclus tuberculosusabdominal malformationbenthic faunaBrazilcarapase deformitycongenital malformationcrabenvironmental protectionfemalelimb malformationmalemarine speciesmorphological traitnonhumanBrachyuraCrustaceaDecapoda (Crustacea)Artigo10.4025/actascibiolsci.v34i1.8618Acesso aberto2-s2.0-804551686902-s2.0-80455168690.pdf44759602002565920000-0002-2067-5406