from The Century Dictionary.
- noun A genus of dogfishes, giving name to the family Spinacidæ, and represented by S. niger or spinax, a small black shark of Europe.
Sorry, no etymologies found.
Researchers at the Catholic University of Louvain got an unprecedented up-close look at a different breed of the sharks, which are known by either their scientific name -- Etmopterus spinax, their common name -- the velvet belly lantern shark, or their street name -- "the phantom hunter of the fjords," according to Discovery News.
In order to gain a detailed understanding of the species that inhabit El Cachucho (Spain's first Protected Marine Area located off the coast of Llanes in Asturias), the scientists studied three species of shark that live at depths of between 400 and 1,000 metres, the blackmouth catshark (Galeus melastomus), the velvet belly lantern shark (Etmopterus spinax), and the birdbeak dogshark (Deania calcea).
Galeus melastomus), the velvet belly lantern shark (Etmopterus spinax