Marine biologists have discovered a new species of the shark genus Squalus in the tropical waters off southern Japan. The Shirai’s spurdog (Squalus shiraii): lateral (A-C) and ventral (D, E) views. Scale bars – 50 mm. Image credit: Viana & Carvalho, doi: 10.3897/zse.96.51962. Squalus is a genus of dogfish sharks in the family Squalidae, which is part of the order Squaliformes. Commonly known as spurdogs, these sharks are commercially important...
