Eight aeolid opisthobranch molluscs of the subfamilies Facelininae, Favorininae, and Herviellinae are reported from Tanzanian waters, and two species from Northwestern India. New records from Queensland, Australia greatly extend the range of two species reported from Tanzania.
Phidiana militaris (Alder & Hancock) and
P. indica (Bergh) are shown to be distinct and a species from New Zealand, originally identified as
P. militaris, is shown to be new.
P. bourailli (Risbec, previously reported only from New Caledonia, is described from Tanzania, as is a new species of
Phidiana.
Favorinus japonicus Baba is reported from Tanzania, the first published record outside Japan, a new species of
Godiva is described from Tanzania and Queensland, and three new species of
Sakuraeolis are described, one from India and two from Tanzania. A new species of
Herviella is described from Tanzania.