places leaving a lot of large boulders on the otherwise flat reef. There are several small pockets of sand, but the rest of the beach is undercut shelf. There are several isolated rocks off east end, two on the fringing reef and two beyond. Watched a large brown speckled eel catch one of the nottled green backed crabs and, after squeezing it to death, bite off the legs and split open the shell cleaning out the interior. Saw several small fish swimming about pools in the reef platform, one was black with yellow bands on its sides. Another was dark green with blotches of red almost constituting longitudinal stripes. Picked up two live brown and white cowries in a shallow pool. They had a dark fuscous margins. Small red brown ants abundant everywhere. A cream and light brown moth common about the trees. Hemispherical, showy black bugs, pale yellow flies, a small brown bug, small black flies and spiders on Ipomoea vine. A few mo- squitoes. Green Dolichopodid flies numerous; also a few Sarcophagids. Hypo- boscids on both frigates and young boobies which nest abundantly in the trees and among the rocks. Caught a snake, too large to preserve in formaline so skinned it in the evening. Friday, Spetember 5, 1924. Vanua Masi and Bacon Islands. Ashore on Vanua Masi with Mr. Beck at 6:45. Collected around sand beach and adjacent slopes; under rocks, under fal- len coconuts, and on the plants. Centipedes, sowbugs, ants and small crickets under rocks. These same and two spp. small weevils under coconuts. The usual small black weevil on driftwood. Landshells under both. The small roddish-brown crickets are more or less closely associated with the red brown ants. Leafhoppers on the shrubs, particularly No. 537. Also found a number of dark olive green caterpillars