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Show 290 MR. A. GARRETT ON THE TERRESTRIAL [Mar. 1, Genus TRALIA, Gray. 1. T R A L I A M E L A N O S T O M A (Garrett). Persa melanostoma, Garrett, Amer. Journ. Conch. 1872, p. 224, pl. 19. fig. 11 ; Schmeltz, Cat. Mus. Godeff. v. p. 87. Melampus melanostoma, Pfeiffer, Mon. Pneum. (Auric.) iv. p. 325. Abundant and gregarious under stones, near and a little below high-water mark, on the east end of Taviuni Island. A small oblong-ovate or elliptic-ally ovate tawny-brown species, with a blackish aperture, short, acute, spirally striated spire, and generally with a transverse brown band beneath the suture. Aperture rounded at the base, narrow above. Parietal region with one or two superior denticles, and a large fold just above the columellar plait. Peristome thick, labiated within and sinuous above. Length 4\ millim. 2. TRALIA COSTATA (Quoy & Gaimard). Auricula costata, Quoy & Gaimard, Voy. Astrol. ii. p. 173, pl. 13. figs. 43-46 ; Deshayes, Lam. Hist. viii. p. 337 ; Kiister, Auric. p. 46, pl. 7. figs. 5-7. Melampus costatus, Beck, Ind. Moll. p. 107; (Tralia) H. & A. Adams, Proc. Zool. Soc. 1854, p. 12; Pfeiffer, Syn. Auric, no. 56 ; Mon. Auric, i. p. 55 ; Mousson, Journ. de Conch. 1870, p. 135 ; Paetel, Cat. Conch, p. 114. Tralia costata (Persa), H. & A. Adams, Gen. Moll. ii. p. 245 ; Chenu, Man. Conch, i. p. 477. fig. 3527. Common, associated with the preceding species. A solid, ovate, longitudinally ribbed, fulvous or reddish-brown species, with three plaits on the parietal wall and columella. The peristome is thick and sinuous above. Length 8-10 millim. 3. TRALIA ALBA (Gassies). Melampus albus, Gassies, Journ. de Conch. 1865, p. 211 ; Pfeiffer, Mon. Pneum. (Auric.) iv. p. 326. Melampus lucidus, Pease, Amer. Journ. Conch. 1869, p. 75 ; Pfeiffer, Mon. Pneum. (Auric.) iv. p. 327. Melampus pellucidus, Pease, Journ. de Conch. 1871, p. 93. Two specimens occurred to m y notice uuder a clump of coral on the east coast of Taviuni Island. A smooth white or horn-coloured species, 3£ to 5 millim. long, of an oblong-ovate form, with a rather produced spire, and the plications the same as in the preceding species. Genus LAIMODONTA, Nuttall. 1. LAIMODONTA LAYARDI, H. & A. Adams. Ophicardetus layardi (Laimodonta), H. & A. Adams, Proc. Zool. Soc. 1854, p. 35. |