Chondrichthyes

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Related to Chondrichthyans: cartilaginous fish

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 ?
Assemblages of various chondrichthyans have been found in the Devonian--Lower Carboniferous of Belarus (Figs 6, 7).
New thelodont (Agnatha) and possible chondrichthyan (Gnathostomata) taxa established in the Silurian and Lower Devonian of the Canadian Arctic Archipelago.
Special issue: Age and growth of chondrichthyan fishes: New methods, techniques and analysis.
Some 50% of the estimated global catch of chondrichthyans is taken as by-catch, does not appear in official fishery statistics, and is almost much unmanaged.
Fish Cytogenetic Techniques: Ray-Fin Fishes and Chondrichthyans
The agnathans, chondrichthyans, and functionality of fish aquaporins generally have received little attention.