Acanthias vulgaris
Date 1700-1880
Source/Photographer Iconographia Zoologica
Old Latin name Acanthias vulgaris
New Latin name Squalus acanthias
Common name Nederlands: Doornhaai
Source: https://commons.wikimedia.org/wiki/File:Acanthias_vulgaris_-_1700-1880_-_Print_-_Iconographia_Zoologica_-_Special_Collections_University_of_Amsterdam_-_UBA01_IZ14100143.tif

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.