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Show 164 MR. A. GARRETT ON THE TERRESTRIAL [Feb. 15, might, by some, be considered of generic importance. Having only two examples, which appear to be females, I prefer for the present to place the species in the genus Anapera, and to name it ANAPERA FIMBRIATA. Smoky yellow, with the abdomen brown; the epistome pale yellow. The general form and structure are those of A. pallida, but it is considerably larger. The antennae are beset with long black hairs. There is a thick fringe of long black erect hairs or setae in front of the eye, continued posteriorly along the orbits of the eyes on each side of the middle opaque disk. This fringe exists, but in a much less degree, in A. pallida. The triangle on the vertex is longer than broad, and not transverse as in A. pallida. There is a series of black setae along the posterior margin of the head. The thorax is of the same form and with the same black setae as in A. pallida, but they are stronger and more conspicuous. The rudimentary wings are pale smoky yellowish, about as long as broad, with numerous black setae on the costal area. The abdomen is somewhat round, clothed with black hair, which is very short on the disk, long at the sides and apex ; the base has a transverse arcuate fold ; the disk is deeply impressed, but, although this is nearly the same in both examples, it is possibly the result of contraction. The legs are as in A. pallida, beset with black hairs. Length 5 lines. 7. O n the Terrestrial Mollusks of the Viti Islands.-Part I. By A N D R E W GARRETT, of Huahine, Society Islands. (Communicated by Mr. J O H N H. P O N S O N B Y , F.Z.S.) [Received December 8, 1886.] The Viti Archipelago, which comprises nearly 200 islands and islets, is embraced in an area between 178° 20' W . and 176° 55' E. long., and between 15° 47'and 19° 13' S. lat. The islands are disposed in three groups-the eastern, intermediate, and western. The former, which is only partially explored, comprises many small islands, mostly of coralline formation, which have been more or less upheaved through volcanic agencies. All the land-shells, so far as known, comprise the same genera of small shells as obtained in the Tonga and Samoa Islands. The middle portion, which includes all the large islands, though imperfectly explored, have so far yielded many large and interesting species. Besides the same genera which occur in the eastern group, we find the genera Placostylus, Nanina, Diplommatina, Pupina, and I,agocheilus. All these genera, which are represented by peculiar species, connect the land-shell fauna with Australasia and the East Indies. The latest and most interesting discovery is the occurrence of the Asiatic genus Lagocheilus, which was found by Mr. Liardet in Gomea Island. The western or Assawa group, |