| OCR Text |
Show 1887.] MOLLUSKS OF THE VITI ISLANDS. 303 1866, p. 446, pl. 38. fig. II ; Mousson, Journ. de Conch. 1870, p. 186; Brazier, Journ.de Conch. 1870, p. 84; Schmeltz, Cat. Mus. Godeff. v. p. 102 ; Pfeiffer, Mon. Pneum. iv. p. 85. Diplommatina paradox a, Crosse, Journ. de Conch. 1857, p 449. Diplommatina australia, Schmeltz (not of Benson), Cat. Mus. Godeff. iii. p. 30; Paetel, Cat. Conch, p. 118. Diplommatina macrostoma, "MSS.," Schmeltz, Cat. Mus. Godeff. iv. p. 75 ; Paetel, Cat. Conch, p. 118. Diplommatina distorta, "MSS.," Schmeltz, I. c. p. 75; Paetel, /. c. p. 118. This species inhabits Viti Levu and Ovalau. It may be distinguished by its sinistral, distorted, ovate-conical form, cinereous or luteous horn-colour, 5| swollen whorls, the last one smaller than the preceding and ascending. The sculpture consists of fine, crowded, oblique, lamelliform striae, which become larger and more remote on the body-whorl. Aperture large, subvertical, and nearly circular. The peristome is continuous, expanded, and in adults the parietal wall is subplicate. Length 3 millim. 2. DlPLO.MMATINA POMATI.EFORMIS, MoUSSOn. Diplommatina (Diancta) pomatiaformis, Mousson, Journ. de Conch. 1870, p. 180, pl. 8. fig. 2; Pfeiffer, Mon. Pneum. iv. p. 81. Discovered by Dr. Graffe in the central portion of Viti Levu. A sinistra], inflated, costate-striated, cinereous species, with 6| rounded whorls, the last one smaller than the penultimate, scarcely ascending, and the striae coarser and more distant than on the preceding whorls. The vertical aperture is circular, pale luteous, and the peristome is slightly reflected and duplicated. Length 5 millim. 3. DIPLOMMATINA SUBREGULARIS, Mousson. Diplommatina (Diancta) subregularis, Mousson, Journ. de Conch. 1870, p. 181, pl. 8. fig. 3 ; Pfeiffer, Mon. Pneum. iv. p. 81. This species inhabits " Nagara," on the south coast of Viti Levu, where it was found by Dr. Graffe. A sinistral, yellowish horn-coloured species, shaped like the preceding, but not so much inflated and with the spire more regular. The sculpture consists of distant acute striae. Whorls 7, convex, the penultimate somewhat inflated, the last one small and ascending. The vertical aperture is quadrately circular, and the slightly expanded peristome is subduplicated. Length 3 millim. 4. DIPLOMMATINA ASCENDENS, Mousson. Diplommatina (Diancta) ascendens, Mousson, Journ. de Conch. 1870, p. 184, pl. 8. fig. 5 ; Pfeiffer, Mon. Pneum. iv. p. 82. Dr. Graffe discovered this species on the island of Viti Levu. It is a sinistral species about 3| millim. long, of a flesh-white colour, acutely ovate form, with distant lamelliform riblets and rather' deep suture. Whorls 5|, convex, rapidly increasing, the last one smaller than the penultimate and ascending. The rather lar"-e aperture is somewhat quadrate in shape and the peristome is |
