Type specimens of
Megalomma species are compared.
Megalomma intermedium (Beddard) becomes a senior synonym of
M. hypsilophum (Ehlers) and
M. monophthalma (Augener). This species is transferred to a new genus but
Sabella palmata Quatrefages has priority.
Sabella pacifici Grube,
Sabella modesta Quatrefages and
Potamilla bioculata Hartmann-Schröder are transferred to
Megalomma. The latter thus becomes a junior homonym of
Megalomma bioculatum (Ehlers), and is renamed. These,
Megalomma acrophthalmos (Grube) and
M. coloratum (Chamberlin) are figured, and two new species of
Megalomma from Sinai and New Zealand are described.
