-20- Peale refers to finding a species, which he said was allied "Thalassidroma oceanica", in the mountains of Tahiti (6000 feet or more), in October, at the same locality where Pterodroma rostrata was found, but the specimens shot "fell in dense forests, thousands of feet below us", and were not found. They appeared to be breeding, but Peale did not find any nests. He described the birds as resembling oceanica, and says "rather larger, but all the under-parts were white." (Peale, 1848, p. 297.) On p. 156, he refers to the same species under another name, as T. pacifica. LARIDAE. Larus novae hollandiae Stephens. Society Islands? A specimen in the Mainz Museum (seen by Saunders) is said to have come from the Society Islands, but the locality is in doubt. Bennett (circa 1835) refers to "gulls" on Tahaa. STERNIDAE. Gyris alba pacifica (Lesson). Society Islands: Forster, etc. Bolabola: Forster. Huaheine: Forster. Raiatea: Young. Tahiti: Forster; Young; Wilson. Wilson found it fairly common.