A new species of Phyllomeniidae (Mollusca Solenogastres: Sterrofustia) from the South Shetland Islands, Antarctica

Ocheyoherpia bursata is a new species of Phyllomeniidae (Mollusca Solenogastres: Sterrofustia) collected at a depth of 248 m, on a gravel bottom off Deception Island (South Shetland Islands, Antarctica). The radula is distich, formed by pairs of hooked teeth (up to 48 μm long x 11 μm wide), each tooth with 5-6 lateral short denticles and a pair of long, curved and fused distal denticles, these distal denticles are located in the same plane as the radular tooth. Midgat with a pair of ventrolateral sacs posteriorly, which run ventraly under the spawning duct. The new species is compared with other two species of the genus. An amended diagnosis of the genus Ocheyoherpia is proposed.