Maxacteon hancocki

Maxacteon hancocki is a species of small sea snail, a marine opisthobranch gastropod mollusk in the family Acteonidae, the barrel bubble snails.

Description
The length of the shell attains 6 mm. It has a headshield with a pair of fleshy lobes; thin operculum. The white shell shows orange-brown markings at the base and at the apex. It contains a large body whorl. The large columella is slightly twisted. The shell is sculptured with grooves

Distribution
This species is found in moderately deep water off the northern coast of North Island, New Zealand.