Cigar shark - The cookiecutter shark , also called the cigar shark, is a species of small dogfish shark in the family Dalatiidae.
Isistius labialis - Reproduction is aplacental viviparity in the same way as great white sharks.
Largetooth cookie-cutter shark - The largetooth cookiecutter shark was originally described by New Zealand ichthyologist Jack Garrick and American shark expert Stewart Springer, in a 1964 issue of the scientific journal Copeia.