Thalassocyon wareni is a species of sea snail, a marine gastropod mollusk in the family Thalassocyonidae. T. wareni gets its name from the man who documented the species for the first time, Anders Warén.[1]
The length of the shell attains a small 24.4 mm. The shell has an inner 'spinous' support, and contains turns.
The animal has a small foot, a pronounced anterior siphonal flap, a long proboscis and two long antennae.
The animal has two large salivitory glands, and long tapered radula.
Males have an open pallial gonoduct, which presents as a groove in the animal's large penis.
This species occurs in the Indian Ocean Abyssal Province and off the Saint Paul Island in the French Southern and Antarctic Lands.