Genus Megapogon Jenkin, 1908

Diagnosis. Achramorphidae with sylleibid or leuconoid organization (Borojević et al. 2002b).

Scope: Five species have been allocated by Jenkin (1908) to this genus: Megapogon crucifer (Poléjaeff 1883), M. raripilus Jenkin 1908, M. villosus Jenkin 1908, M. pollicaris Jenkin 1908 and M. crispatus Jenkin 1908 . One new species from the Antarctic is described in this study; Megapogon schiaparellii sp. nov. Type species. Leuconia crucifera Poléjaeff 1883, accepted as Megapogon crucifer (Poléjaeff 1883; type by subsequent designation by Jenkin 1908).