subclass Elasmobranchii

Thesaurus

Noun

1.

subclass Elasmobranchii - sharks; rays; dogfishes; skates Elasmobranchii, Selachii, subclass SelachiiChondrichthyes, class Chondrichthyes - cartilaginous fisheselasmobranch, selachian - any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks; rays; skatesfamily Hexanchidae, Hexanchidae - primitive sharksfamily Lamnidae, Lamnidae - oceanic sharksCetorhinidae, family Cetorhinidae - in some older classifications considered the family of the basking sharksAlopiidae, family Alopiidae - thresher sharksfamily Orectolobidae, Orectolobidae - nurse sharks and carpet sharksCarchariidae, family Carchariidae, family Odontaspididae, Odontaspididae - sand sharks; in some classifications coextensive with family Carcharhinidaefamily Rhincodontidae, Rhincodontidae - small-toothed sharks comprising only one speciesfamily Scyliorhinidae, Scyliorhinidae - small bottom-dwelling sharksCarcharhinidae, family Carcharhinidae - largest family of living sharks; found worldwide especially in tropical waters; dorsal fin lacks spines: requiem sharks including tiger sharks and soupfin sharksfamily Triakidae, Triakidae - small sharks with smooth skins and lacking spines on their dorsal finsfamily Squalidae, Squalidae - dogfishes having a spine in each dorsal finfamily Sphyrnidae, Sphyrnidae - hammerhead sharks; bonnethead sharksfamily Squatinidae, Squatinidae - bottom-dwelling ray-like sharksorder Torpediniformes, Torpediniformes - rays with bodies shaped like torpedoesBatoidei, order Batoidei, order Rajiformes, Rajiformes - fish with dorsoventrally flattened bodies; includes: rays; skates; guitarfishes; sawfishesclass - (biology) a taxonomic group containing one or more orders