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	 spiny dogfish, spurdog, mud shark, piked dogfish (Squalus acanthias)
|  | Query: Spiny shark | Result: 1st of 44 |  | 
 
| Subject: | spiny dogfish, spurdog, mud shark, piked dogfish (Squalus acanthias) 
 |  | Poster: | Wiki Photos (---@---.---) 
 |  |  |    | Resolution: 1171x460
File Size: 362664 Bytes
Date: 2006:10:31 13:14:22
Camera: E5000 (NIKON)
F number: f/2.8
Exposure: 1/60 sec
Focal Length: 71/10
Upload Date: 2017:03:28 22:38:44 | 
| Spiny dogfish (Squalus acanthias) at the Josephine Marie shipwreck, Stellwagen National Marine Laboratory (cropped and adjusted from original).
 Date
 Source	https://marinelife.noaa.gov/media_lib/preview.aspx?ID=7299&p=img
 Author	Doug Costa, NOAA/SBNMS
 Source: https://commons.wikimedia.org/wiki/File:Squalus_acanthias_stellwagen.jpg
 
 The spiny dogfish, spurdog, mud shark, or piked dogfish (Squalus acanthias) is one of the best known species of the Squalidae (dogfish) family of sharks, which is part of the Squaliformes order. While these common names may apply to several species, Squalus acanthias is distinguished by having two spines (one anterior to each dorsal fin) and lacks an anal fin. It is found mostly in shallow waters and further offshore in most parts of the world, especially in temperate waters. Spiny dogfish in the northern Pacific Ocean have recently been reevaluated and found to constitute a separate species, now known as "Pacific spiny dogfish", Squalus suckleyi.
 Order:	Squaliformes
 Family:	Squalidae
 Genus:	Squalus
 Species:	Squalus acanthias Linnaeus, 1758
 Synonyms:
 Acanthorhinus acanthias (Linnaeus, 1758)
 Spinax acanthias (Linnaeus, 1758)
 Squalus fernandinus Molina, 1782
 Acanthias vulgaris Risso, 1826
 Acanthias americanus Storer, 1846
 Spinax acantheus Cuvier, 1863
 Acanthias lebruni Vaillant, 1888
 Squalus lebruni (Vaillant, 1888)
 Squalus blainvillei (non Risso, 1827)
 Squalus barbouri Howell-Rivero, 1936
 Squalus tasmaniensis Howell-Rivero, 1936
 Flakeus tasmaniensis (Howell-Rivero, 1936)
 Koinga whitleyi Whitley, 1940
 Koinga kirki Whitley, 1940
 Squalus kirki (Whitley, 1940)
 
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 |  |  | Guest |  |  | Scientific Name:	Squalus acanthias Linnaeus, 1758 Common Names:
 English	–	Spiny Dogfish, Cape Shark, Spurdog, Piked Dogfish, Mud Shark, Grayfish
 French	–	Aiguillat commun
 Spanish	–	Cazón Espinoso, Espinillo, Galludo, Mielga, galludo espinoso
 Synonyms:
 Squalus fernandinus Molina, 1782
 Koinga kirki Phillipps, 1931
 Squalus tasmaniensis Howell Rivero, 1936
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