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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).
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]
Enchodus species were small to medium in size, with E. zinensis reaching 172.2 centimetres (67.8 in) long. [6] One of the genus' most notable attributes are the large "fangs" at the front of the upper and lower jaws and on the palatine bones, leading to its misleading nickname among fossil hunters and paleoichthyologists, "the saber-toothed herring".
However, the heaviest species in this family is the blue iguana (Cyclura lewisi), with a total length of up to 1.5 m (4.91 ft), a SVL of 51–76 cm (30 in) and a mass of up to 14 kg (31 lb) [76] [77] It is the eighth-heaviest and largest extant lizard. [78] Other large species in this family include the Galapagos land iguana (Conolophus ...
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.
The family Lanthanotidae consists of a single species, the earless monitor lizard (Lanthanotus borneensis). This species has thick skin, which is covered by small, rounded scales that appear in rows. The main defining feature that distinguishes this species from other monitors is its lack of a parietal eye and the lack of a hemibaculum.
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 ...