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Any of various cartilaginous fishes of the subclass Elasmobranchii, having five to seven pairs of lateral gill slits and including the sharks, rays, and skates.

[From New Latin Elasmobranchiī, subclass name : Greek elasmos, metal beaten out (from elaunein, elas-, to beat) + Latin branchia, gill; see branchia.]

e·las′mo·branch′ adj.


(ɪˈlæsməˌbræŋk; ɪˈlæz-)
(Animals) any cartilaginous fish of the subclass Elasmobranchii (or Selachii), which includes the sharks, rays, dogfish, and skates
(Animals) of, relating to, or belonging to the Elasmobranchii
Also called: selachian
[C19: from New Latin elasmobranchii, from Greek elasmos metal plate + brankhia gills]


(ɪˈlæs məˌbræŋk, ɪˈlæz-)

1. belonging or pertaining to the Elasmobranchii, the subclass of cartilaginous fishes comprising the sharks and rays.
2. an elasmobranch fish.
[1870–75; < New Latin Elasmobranchii < Greek elasm(ós) beaten metal]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.elasmobranch - any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharkselasmobranch - any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks; rays; skates
cartilaginous fish, chondrichthian - fishes in which the skeleton may be calcified but not ossified
shark - any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales
ray - cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins
References in periodicals archive ?
Lugalepis--a new genus of elasmobranchs from Devonian of the western part of the Main Devonian Field.
The highly dynamic behavior of elasmobranchs implies the early induction of oxidative stress responses, including the production of reactive oxygen species (ROS), the levels of which are proportional with age.
The shallower habitats of southern California, and specifically this study site, harbor a rich diversity of elasmobranchs (Love 2011).
Manta rays are an iconic flagship species: for me they're one of the main representatives of the elasmobranchs, which include sharks and rays.
considered bycatch; sharks, which included all elasmobranchs, considered bycatch; other bony fishes, which were assigned exclusively to bycatch species; and turtles.
Age determination of elasmobranchs presents unique challenges compared to that of teleosts.
Spiny dogfish belong to the Squalidae family, that are unique among elasmobranchs as they usually have well-calcified dorsal spines that can be used for age estimation (Kaganovskaia, 1933; Templeman, 1944; Probatov, 1957; Holden and Meadows, 1962; Ketchen, 1975; Beamish and McFarlane, 1985; Rice et al.
To calculate the abundance and composition of bycatch as a component of a typical commercial catch, the catch was sorted on deck removing all teleost fish and elasmobranchs.
The family Caligidae, mainly Caligus and Lepeophtheirus species are widespread sea lice copepods that parasitize body surface, cavity of the mouth, the gills, and the operculum of teleosts and elasmobranchs (Ho et al.
Big fish in shallow water; use of an intertidal surf-zone habitat by large-bodied teleosts and elasmobranchs in tropical northern Australia.