Mesoplodon

The largest genus of the cetacean order is probably also the most poorly researched group of mammals

The largest genus of the cetacean order is probably also the most poorly researched group of mammals.

Mesoplodon are members of the beaked whales family; they are about 3.9 to 6.2 m (13 to 20 ft) in length. They have a spindle-shaped body with a small dorsal fin and short narrow flippers. Their head is small and tapered with an asymmetrical blow hole. Sexual dimorphism is poorly known in this genus, but the females tend to be the same size or larger than males, at least in some species.

This genus was home to tropical bottlenose whales, now in Indopacetus.