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Bythaelurus
''Bythaelurus'' is a genus of sharks belonging to the family (biology), family Pentanchidae, the deepwater catsharks. The genus ''Bythaelurus'' Compagno 1988 was first described as a subgenus of ''Halaelurus'' Gill 1862 based on several morphological characteristics including a soft body with thin skin, a bluntly rounded snout without a pointed, knob-like tip, and eyes not noticeably elevated on the dorsal surface of the head. Members of this genus are generally found in deep water and have more somber body coloration. Species There are currently 14 recognized species in this genus: * ''Bythaelurus alcockii'' (Samuel Garman, Garman, 1913) (Arabian catshark) * ''Bythaelurus bachi'' Simon Weigmann, Weigmann ''et al.'', 2016 (Bach's catshark) * ''Bythaelurus canescens'' (Albert Günther, Günther, 1878) (dusky catshark) * ''Bythaelurus clevai'' (Bernard Séret, Séret, 1987) (broadhead catshark) * ''Bythaelurus dawsoni'' (Stewart Springer, S. Springer, 1971) (New Zealand catshark) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dusky Catshark
The dusky catshark (''Bythaelurus canescens'') is a species of shark belonging to the family Pentanchidae, the deepwater catsharks. This shark is endemic to the southeast Pacific Ocean, off the coasts of Peru and Chile. It grows to a maximum length of , and is oviparous like many other chondrichthyans in the Indo-Pacific. Ecology ''Bythaelurus canescens'' is deep-sea shark, generally located between depths of . It lives primarily on mud on the upper continental slopes, but can also be found on rocky bottoms. It is an important mesopredator, and is often caught it shrimp trawl nets in northern and central Chilean coasts. Sometimes ''B. canescens'' makes up to 20.3% of the total catch. In spite of this, little is known about it because it is often thrown back without further consideration. Trophic ecology studies are often done on ''B. canescens t''o obtain a general overview of their diet. Diet Studies Much of what is known about the ecology and predicted behavior of the dus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
