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The two currently recognized extant species in this genus are: [5] Alepisaurus brevirostris Gibbs, 1960 (short-snouted lancetfish) Alepisaurus ferox R. T. Lowe, 1833 (long-snouted lancetfish) The anatomic difference between the two species is the shape of the snout, which is long and pointed in A. ferox, and slightly shorter in A. brevirostris.
Alepisaurus ferox, also known as the long snouted lancetfish, longnose lancetfish, or cannibal fish, is a species of lancetfish found in the ocean depths down to 1,830 m (6,000 ft). [ 3 ] [ 4 ] This species grows to 215 cm (85 in) in total length and a weight of 9 kg (20 lb).
Although the closest living relatives of Cimolichthys are lancetfish and lizardfish, the living animals would have resembled very large pikes. They could grow up to 1.5 to 2.0 metres (4.9 to 6.6 ft) meters long. Their bodies were covered by large, heavy scutes. Typical of this species are narrow lower jaws with several series of teeth.
Alepisaurus paronai is an extinct species of lancetfish known from a fossil skull found in Middle Miocene-aged strata in Piedmont, Italy.The skull is very similar in anatomy and dimensions to that of the extant long-snouted lancetfish. [1]
Forty percent of mammal species are rodents, and they inhabit every continent except Antarctica. This list contains circa 2,700 species in 518 genera in the order Rodentia. [ 1 ]
The currently recognized species in this genus are: [2] Anotopterus nikparini, Kukuev, 1998 (North Pacific daggertooth) Anotopterus pharao, Zugmayer, 1911 (daggertooth) Anotopterus vorax, Regan, 1913 (south ocean daggertooth) Anotopterus has long been considered a unique taxonomic family with close affinity to the families Paralepididae and ...
Most extant species have a body length less than 2 centimetres (0.79 in) long, though Carboniferous fossils about 6 cm long are known. [ 5 ] Zygentoma have dorsiventrally flattened bodies, generally elongated or oval in outline.
The Synodontidae or lizardfishes [note 1] are benthic (bottom-dwelling) marine and estuarine bony fishes that belong to the aulopiform fish order, a diverse group of marine ray-finned fish consisting of some 15 extant and several prehistoric families. They are found in tropical and subtropical marine waters throughout the world.