OCR Text |
Show 1887.] MOLLUSKS OF THE VITI ISLANDS. 187 convexity of the whorls, more or less open columellar chink, and in texture vary from thin pellucid to thick opaque cretaceous without lustre. The colour is whitish, pale horn-colour, sometimes with a light greenish tint. Animal light yellow. Length 8 to 13 millim. Genus PARTULA, Ferussac. 1. PARTULA LIRATA. Partula lirata, Mousson, Journ. de Conch, 1865, p. 136. pl. 14. fig. 4; 1870, p. 126 ; Heynemann, Malak. Blatt. 1867, pl. i. fig. 1 (dentition) ; Pfeiffer, Mon. Hel. vi. p. 158 ; Paetel, Cat. Conch. 1873, p. 104; Schmeltz, Cat. Mus. Godeff. v. p. 91 ; Hartman, Cat. Partula, p. 14 ; Obs. gen. Partula, Bull. Mus. Comp. Zool. ix. p. 183. This singular Partula lives on foliage near the sea-shore. I obtained several hundred examples on Lanthala, and a few at Vanua, Balavo, and Taviuni. Dr. Graffe found it on Kanathia and Oneata. It is, so far as known, the only species of Partula with elevated spiral lirae. The type is pale cinereous, with the expanded lip and aperture white. There is a depressed white tubercle on the parietal wall. A tawny-brown variety is not uncommon. Genus TORNATELLINA, Beck. 1. TORNATELLINA OBLONGA. Tornatellina oblonga, Pease, Proc. Zool. Soc. 1864, p. 673; 1871, p. 473; Journ. de Conch. 1871, p. 93; Pfeiffer, Mon. Hel. vi. p. 264 ; Schmeltz, Cat. Mus. Godeff. v. p. 89 ; Garrett, Proc. Phil. Acad. Nat. Sci. 1879, p. 21 ; Journ. Phil. Acad. Nat. Sci. 1881, p. 398, 1885, p. 81. Tornatellina bacillaris, Mousson, Journ. de Conch. 1871, p. 16, pl. 3. fig. 5 ; Schmeltz, Cat. Mus. Godeff. v. pp. 89, 90; Pfeiffer, Mon. Hel. viii. p. 316. Inhabits all the groups from the Marquesas and Paumotus to the Viti Islands. On the ground in forests from near the sea-shore to 2000 feet above sea-level. Its slender form, imperforate base, and nearly vertical simple columella will distinguish it. 2. TORNATELLINA CONICA. Tornatellina conica, Mousson, Journ. de Conch. 1869, p. 342, pl. 14. fig. 8 ; (var. impressa), p. 16 ; Pease, Proc. Zool. Soc. 1871, p. 473 ; Pfeiffer, Mon. Hel. viii. p. 316 ; Garrett, Proc. Phil. Acad. Nat. Sci. 1879, p. 21 ; Journ. Phil. Acad. Nat. Sci. 1881, p. 399, 1885, p. 81 ; Schmeltz, Cat. Mus. Godeff. v. p. 89. Cionella conica, Paetel, Cat. Conch. 1873, p. 106. It has the same range as the preceding species, and inhabits the same station. It is more robust and lighter-coloured than T. oblonga, the spire more tapering, body-whorl larger, more compressed, parietal lamina more prominent, and the columella more twisted than in that species. |