This genus contains a single extant species, the snaggletooth shark. It contains one extant species, the snaggletooth shark ("H. elongata") and several extinct species. Willy tells Drifter a new death warrant has been issued for their friend Snaggletooth Harry. The effect was completed by a chrome Snaggletooth on the side of the plane. As a predator, Richardson's snaggletooth feeds on other fish and on krill.