Chondrichthyes

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Related to Selachii: elasmobranch, Coelacanthiformes

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.
References in periodicals archive ?
Catches of Selachii reported by FAO statistics for Spain, Italy, and Greece in the Mediterranean amount to 4209 metric tons in 2000, but include pelagic and benthic sharks, skates, rays, and chimaeras together.
The largest members of the shark subclasses Selachii and Elasmobranchii have the biggest teeth - they can be over a foot long.
1983: Re-description of the external morphology of Somniosus rostratus (Risso, 1826), with special reference to its squamation and cutaneous sensory organs, and aspects of their functional morphology (Piscis, Selachii,Squalidae).