Squaliformes - Information from Wikipedia on this order of sharks, members of which are commonly known as bramble, gulper, sleeper and dogfish sharks. Bramble Shark: Echinorhinus brucus - Also called the spiny shark, this species is named for the thorn-like scales on its back. Drawing and information. Dalatias licha - Drawing and information about this species. Greenland Shark: Somniosus microcephalus - Sometimes known as the sleeper, gurry or ground shark, a drawing of this species, its description, habits and range. Portuguese Shark: Centroscymnus coelolepis - Drawing of this species, its description and information on its habits and range. Black Dogfish: Centroscyllium fabricii - Drawing of this small species and its teeth, its description and information on its range. Spiny Dogfish: Squalus acanthias - Description and drawings of this species and many of its teeth, and information on its habits, range and occurrence in the Gulf of Maine. Spiny Dogfish: Squalus acanthias - Photographs and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation. Orders Summary for Squaliformes - Identifying features of members of this order, including the families Centrophoridae, Dalatiidae, Echinorhinidae, Etmopteridae and Squalidae.