Definitions of selachian

n any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks; rays; skates

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any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales
cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins
Hexanchus griseus, cow shark, six-gilled shark
large primitive shark widely distributed in warm seas
mackerel shark
fierce pelagic and oceanic sharks
Alopius vulpinus, fox shark, thrasher, thresher, thresher shark
large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed
Orectolobus barbatus, carpet shark
shark of the western Pacific with flattened body and mottled skin
Ginglymostoma cirratum, nurse shark
small bottom-dwelling shark of warm shallow waters on both coasts of North America and South America and from southeast Asia to Australia
Carcharias taurus, Odontaspis taurus, sand shark, sand tiger
shallow-water shark with sharp jagged teeth found on both sides of Atlantic; sometimes dangerous to swimmers
Rhincodon typus, whale shark
large spotted shark of warm surface waters worldwide; resembles a whale and feeds chiefly on plankton
cat shark
small bottom-dwelling sharks with cat-like eyes; found along continental slopes
requiem shark
any of numerous sharks from small relatively harmless bottom-dwellers to large dangerous oceanic and coastal species
any of several small sharks
hammerhead, hammerhead shark
medium-sized live-bearing shark with eyes at either end of a flattened hammer-shaped head; worldwide in warm waters; can be dangerous
Squatina squatina, angel shark, angelfish, monkfish
sharks with broad flat bodies and winglike pectoral fins but that swim the way sharks do
crampfish, electric ray, numbfish, torpedo
any sluggish bottom-dwelling ray of the order Torpediniformes having a rounded body and electric organs on each side of the head capable of emitting strong electric discharges
primitive ray with sharp teeth on each edge of a long flattened snout
primitive tropical bottom-dwelling ray with a guitar-shaped body
large venomous ray with large barbed spines near the base of a thin whiplike tail capable of inflicting severe wounds
eagle ray
powerful free-swimming tropical ray noted for `soaring' by flapping winglike fins; usually harmless but has venomous tissue near base of the tail as in stingrays
devilfish, manta, manta ray
extremely large pelagic tropical ray that feeds on plankton and small fishes; usually harmless but its size make it dangerous if harpooned
large edible rays having a long snout and thick tail with pectoral fins continuous with the head; swim by undulating the edges of the pectoral fins
Type of:
cartilaginous fish, chondrichthian
fishes in which the skeleton may be calcified but not ossified

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