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Show 174 MR. A. GARRETT ON THE TERRESTRIAL [Feb. 15, 2. TROCHOMORPHA ABROCHROA, Crosse. Helix abrochroa, Crosse, Journ. de Conch. 1868, p. 176; 1870, p. 101, pl. 1. fig. 2; Pfeiffer, Mon. Hel. vii. p. 207. Trochomorpha (Discus) abrochroa, Mousson, Journ. de Conch. 1870, p. 123, var. pseudoplanorbis. This species, which appears to be somewhat scarce, was found by me under dead wood in the mountain-forests on Kioa Island. Dr. Graffe obtained it on Viti Levu. Easily distinguished by its thin texture, uniform luteous horn-colour, depressed form, sharp crowded striae, and the angle on the margin of the wide umbilicus. Diam. 12 millim. 3. TROCHOMORPHA LUDERSI. Helix ludersi, Pfeiffer, Proc. Zool. Soc. 1855, p. 112; (Videna) Vers, p. 132 ; Mon. Hel. iv. p. 183. Trochomorpha (Discus) ludersi, Mousson, Journ. de Conch. 1870, p. 122 (part.). This fine species is abundant on the trunks of trees at Gnau (Angau) Island. I received a few specimens from a native at Ovalau, where Macgillivray obtained the type examples. Its large size (19 millim.), light horn-colour, and, more particularly, the four narrow reddish-brown bands, two above and two in the base, will separate it from any other Vitian species. 4. TROCHOMORPHA TAVIUNIENSIS. Helix taviuniensis, Garrett, Amer. Journ. Conch. 1872, p. 223 (" Taviuniensis " typ. err.) ; Schmeltz, Cat. Mus. Godeff. v. p. 95 ; Pfeiffer, Mon. Hel.*vii. p. 574. Found in numbers on the trunks of trees in damp forests on Taviuni. A little smaller and more depressed than T. ludersi, with a single narrow chestnut-brown submarginal band, both above and beneath, on a tawny-yellow ground. Out of over 300 specimens one only was without the bands, and was more depressed and paler than the type. The bands are darker and wider than in the preceding species. 5. TROCHOMORPHA TUMULUS. Helix tumulus, Gould, Proc. Bost. Soc. Nat. Hist. 1846, p. 175 ; Expl. Exp., Shells, p. 62, fig. 53 ; Pfeiffer, Mon. Hel. i. p. 85 ; Mousson, Journ. de Conch. 1865, p. 194, 1870, p. 120; Schmeltz, Cat. Mus. Godeff. v. p. 94. Nanina tumulus, Gray, Cat. Pulm. p. 128 ; (Trochomorpha) Albers, Die Hel. 2nd ed. p. 60 ; (Discus) Paetel, Cat. Conch, p. 85. This species, which is unknown to me, inhabits Viti Levu. Schmeltz cites Samoa as one of its habitats, which is probably a mistake, as Prof. Mousson does not mention it in his paper on the Samoan land-shells. It is described as a small (14 millim.), solid, yellowish, pyramidal |