Western longnose spurdog

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Western longnose spurdog
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Squaliformes
Family: Squalidae
Genus: Squalus
Species: S. nasutus
Binomial name
Squalus nasutus
Last, L. J. Marshall & W. T. White, 2007

The western longnose spurdog, Squalus nasutus, is a dogfish of the family Squalidae, found on the continental shelf off the northwest and southwest coasts of Western Australia, at depths of between 300 and 510 m. Its length is at least 55 cm.

The western longnose is a rare, small and slender dogfish with a narrow head and long narrow snout. There is a short medial barbel on the anterior nasal flaps. The pectoral fin has a shallowly concave posterior margin. The first dorsal fin is moderately high with a short spine.[2]

Coloration is light grey above, paler below, with no white spots. The pale dorsal fins have dusky tips and posterior margins. There is a dark blotch on part of the caudal fin's posterior margin.[2]

Its reproduction is ovoviviparous.

See also[edit]

References[edit]

  1. ^ R. D. Cavanagh & T. J. Lisney (2003). "Squalus nasutus". IUCN Red List of Threatened Species. Version 2009.2. International Union for Conservation of Nature. Retrieved March 3, 2010. 
  2. ^ a b Compagno, Dando, & Fowler, Sharks of the World, Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2