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ElasmobranchiienUK
Thesaurus| Noun | 1. |  Elasmobranchii - sharks; rays; dogfishes; skates Selachii, subclass Elasmobranchii, 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 |
ElasmobranchiienUK
Elasmobranchii[ə‚laz·mə′braŋ·kē‚ī] (vertebrate zoology) The sharks and rays, a subclass of the class Chondrichthyes distinguished by separate gill openings, amphistylic or hyostylic jaw suspension, and ampullae of Lorenzini in the head region. Elasmobranchii a subclass of cartilaginous fishes. The skeleton is cartilaginous and often calcified. The body is covered with placoid scales or, sometimes, is naked. The gills are lamellar. There is no gill cover; five to seven pairs of gill clefts open directly to the exterior. The mouth is inferior. The intestine has a spiral fold and opens into the cloaca. In males the terminal rays of the ventral fins are converted into copulatory organs, or pterygopodia. The subclass comprises two extinct orders and one extant order, the Selachii, which includes sharks (three suborders) and rays. Elasmobranchii first appeared in the Devonian. Most of the fishes inhabit seas; a few are encountered in fresh waters. MedicalSeeelasmobranchElasmobranchiienUK
Synonyms for Elasmobranchiinoun sharksSynonyms- Selachii
- subclass Elasmobranchii
- subclass Selachii
Related Words- Chondrichthyes
- class Chondrichthyes
- elasmobranch
- selachian
- family Hexanchidae
- Hexanchidae
- family Lamnidae
- Lamnidae
- Cetorhinidae
- family Cetorhinidae
- Alopiidae
- family Alopiidae
- family Orectolobidae
- Orectolobidae
- Carchariidae
- family Carchariidae
- family Odontaspididae
- Odontaspididae
- family Rhincodontidae
- Rhincodontidae
- family Scyliorhinidae
- Scyliorhinidae
- Carcharhinidae
- family Carcharhinidae
- family Triakidae
- Triakidae
- family Squalidae
- Squalidae
- family Sphyrnidae
- Sphyrnidae
- family Squatinidae
- Squatinidae
- order Torpediniformes
- Torpediniformes
- Batoidei
- order Batoidei
- order Rajiformes
- Rajiformes
- class
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