Chondrichthyes

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Related to Chondricthyes: class Chondrichthyes

Chondrichthyes

a class of the phylum Chordata containing the cartilaginous fish, sharks, rays and chimaeras. In some classifications, the term is synonymous with ELASMOBRANCHII. They are the lowest vertebrates with complete and separate vertebrae, moveable jaws and paired appendages. All are predators and virtually all are marine. They are characterized by the absence of true bone and the presence of CLASPERS (1) in males, and DENTICLES.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
2002., Observacdes sobre a alimentacao das raias de agua doce Potamotrygon orbignyi, Potamotrygon scobina e Plesiotrygon iwamae (Chondricthyes: Potamotrygonidae) na Ilha de Cotijuba--Bala de Marajo Para --Brasil.
El 5,76% de las especies identificadas fueron peces cartilaginosos (Clase Chondricthyes) y el 94,24% peces oseos (Clase Osteicthyes), de los cuales el 63,80% pertenecieron al Orden Perciformes.