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Hemiscyllium sharks of the family Hemiscylliidae are also known as walking sharks [1] and Epaulette sharks. These small, nocturnal, benthic dwelling swimmers have evolved to be able to 'walk', or use their fins to propel themselves over rocks, into pools, or into small crevices in their habitats.
1 Species. 2 Fossil record. 3 Bibliography. ... Download as PDF; Printable version; In other projects ... Hexanchiformes to Lamniformes // Sharks of the world. An ...
Somniosus rostratus A. Risso, 1827 (little sleeper shark) Somniosus sp. A Not yet described (long-nose sleeper shark) Genus Zameus D. S. Jordan & Fowler, 1903. Zameus squamulosus Günther, 1877 (velvet dogfish) Family Squalidae (dogfish sharks) Genus Cirrhigaleus S. Tanaka (I), 1912. Cirrhigaleus asper Merrett, 1973 (rough-skin spurdog)
These sharks have only 1 dorsal fin, 6-7 gill slits, and no nictitating membrane on the eyes. Cow sharks are fairly large and stocky, while frilled sharks are smaller and have eel-like bodies. The oldest fossils from this order can be dated back to the mid-Jurassic. [2] There are six living species in 4 genera, and 2 families.
Sphyrna alleni is a small species of shark, measuring less than 150 centimetres (4.9 ft) in length. Like other hammerhead sharks , its head is shaped into a flattened cephalofoil. The latter has a more angular anterior edge than that of S. tiburo , and bears lobes on its posterior edges, leading to it being described as "shovel-like". [ 1 ]
Gollum is a genus of ground sharks in the family Pseudotriakidae, native to the southwestern Pacific Ocean.The genus was described in 1973 by biologist Leonard Compagno, who named it named after the character Gollum from J. R. R. Tolkien's works, noting the species Gollum attenuatus (the slender smooth-hound) "bears some resemblance in form and habits".
[3] [4] Douglas Long was the first to notice the new shark species while he was processing the fish samples that were collected during the expedition. [3] Though not yet formally described, the name Galápagos catshark was used in non-scientific shark literature for several years prior to the published description. [5]
Nebrius is a genus of carpet sharks in the family Ginglymostomatidae. It contains a single extant species, the tawny nurse shark ( Nebrius ferrugineus ), as well as a number of extinct species dating back to the Early Paleocene .