|
Odontaspis
''Odontaspis'' (from 'tooth') and 'shield') is a genus of sand shark with two extant species. Description Bigeye sand tigers can reach a length of about and smalltooth sand tigers of about 4.1 m. They are large-bodied sharks with long, conical snouts, broad-based dorsal and anal fins, and an asymmetrical caudal fin with a strong lower lobe. Their teeth are large, with prominent narrow cusps. They are distinguished from the similar genus '' Carcharias'' by the absence of crushing posterior teeth.Bourdon, J''Odontaspis'' Agassiz 1838 ''Elasmo.com''. Retrieved on December 24, 2008. These bottom dwelling, deepwater sharks can be found in temperate and tropical waters of all the oceans. Extant species * '' Odontaspis ferox'' ( A. Risso, 1810) (smalltooth sand tiger) * '' Odontaspis noronhai'' ( Maul, 1955) (bigeye sand tiger) Extinct species Extinct species within this genus include: * ''Odontaspis aculeatus'' Capetta & Case, 1975 * ''Odontaspis speyeri'' (Dartevel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smalltooth Sand Tiger
The smalltooth sand tiger or bumpytail ragged-tooth (''Odontaspis ferox'') is a species of Lamniformes, mackerel shark in the family (biology), family Sand shark, Odontaspididae, with a patchy but worldwide distribution in tropical and warm temperate waters. They usually inhabit deepwater rocky habitats, though they are occasionally encountered in shallow water, and have been known to return to the same location year after year. This rare species is often mistaken for the much more common sand tiger shark (''Carcharias taurus''), from which it can be distinguished by its first dorsal fin, which is larger than the second and placed further forward. It grows to at least in length. They have also been recently sighted in Irish and English waters. Very little is known of the biology and behavior of the smalltooth sand tiger. It is an active predator of benthic bony fishes, invertebrates, and cartilaginous fishes. This species is thought to be ovoviviparous with oophagy, oophagous em ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
