(32) Helicina egregia (Pfeiffer) Hab. Guadalcanar, Florida Islands.

(33) Helicina modesta (Pfeiffer) Hab. Guadalcanar, Shortland Islands, Treasury Islands, Choiseul Bay.

(34) Helicina solomonensis (nov. spec.) Hab. The Islands of Bougainville Straits (Faro, Shortlands, Treasury).

(35) Pythia scarabæus (Linné) Hab. Santa Anna, St. Christoval, which were the localities of my specimens; but I observed this species and its varieties in every island I visited. Stat: Moist ground usually near the sea.

(36) Melampus fasciatus (Deshayes) Hab. Isabel, Rua Sura Islets off the north coast of Guadalcanar. I found these shells in the crevices of a log on the beach.

(37) Melania amarula (Linné) Hab. Ugi, in the streams.

(38) Melania scabra (Müller) Hab. Ugi, in a stream.

(39) Melania salomonis (Brot.) Hab. Ugi, in a stream.

(40) Melania fulgurans (Hinds) Hab. Ugi, in a stream.