Anatomia funcional da cavidade bucofaringiana de trairão, Hoplias lacerdae Miranda Ribeiro, 1908 (Characiformes, Erythrinidae)

Anatomy of the buccopharyngeal cavity of trairao, Hoplias Lacerdae Miranda Ribeiro, 1908 (Characiformes, Erythrinidae). We studied the buccopharyngeal cavity anatomy of 20 male and female trairao, Hoplias lacerdae (Miranda Ribeiro, 1908) specimens, with 24.41cm average standard-length, fixed in 4% formalin aqueous solution and/or diaphanized and colored with alizarin and alcian blue. The anatomical characteristics of the H. lacerdae buccopharyngeal cavity are: thin lips adherent to the respective maxilla; oral dentition consisting of canine and conical teeth, implanted in the premaxillary, maxillary and dentary arches, and conical teeth in the ectopterygoid and accessory ectopterygoid; smooth tongue, with free apex; dentigerous