Family
Pentanchidae (Deepwater catsharks)
Apristurus brunneus. Photo: (c) larisaking, some rights reserved (CC BY-NC)
Carcharhiniformes, the ground sharks, are the largest order of sharks. With over 270 species, Carcharhiniformes include a number of common types, such as catsharks, swellsharks, and the sandbar shark.