Cookiecutter shark
Isistius brasiliensis
| Length | Up to 20 in |
| Description | Brownish black with a dark collar around the gill region and bright green eyes; sometimes referred to as the “cigar” shark; small dorsal fins are at the rear of its body |
| Food | Eats squid, small fish, crustaceans; also bites off flesh from larger fishes, cetaceans and sharks |
| Habitat | Caught at night, sometimes at surface or at depths up to 11,500 ft |