spiny dogfish (Squalus acanthias) English: Stamp of USSR, Fauna of Black Sea, Spiny dogfish (Squalus acanthias), 1991
Русский: Марка СССР. Фауна Черного моря, Катран (Squalus acanthias), 1991
Date 6 November 2007 (original upload date)
Source Personal collection
Author Scanned and processed by A. Sdobnikov
Source: https://commons.wikimedia.org/wiki/File:1991_CPA_6281.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. It is found mostly in shallow waters and further offshore in most parts of the world, especially in temperate waters.