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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.piny dogfish are fished for food in Europe, the United States, Canada, New Zealand and Chile. The meat is primarily consumed in England, France, the Benelux countries and Germany.
But it is on its own terms that the Spiny Dogfish really excels. This species is basically a deep-sea shark that has secondarily re-invaded shallow, near-shore waters. The Spiny Dogfish seems to prefer cold waters between 45 and 59 degrees Fahrenheit (7 and 15 degrees Celsius).art of the Spiny Dogfish s predatory secret is its teeth and jaws. Its teeth have oblique cusps with overlapping bases, forming a nearly continuous cutting edge. Spiny Dogfish jaws are short, transverse, and thickly muscled equipment for a powerful bite.