176 MR. A. GARRETT ON THE TERRESTRIAL [Feb. 15, 



found at Lomaloma, Vanua Balavo. Graffe subsequently discovered 

 some specimens of Trocho norpha in the interior of Viti Leva, which 

 Mousson (in Journ. de Conch. 18/0, p. 122) referred to his T. trans- 

 arata, adding additional characters and giving a good figure of the 

 same. On the same page he describes the var. depresso-striata, 

 which latter is probably distinct and = T.fessonia, Angas. 



Unfortunately I lost all my Kantavu specimens of the latter 

 species when shipwrecked, and have only a single dead example of T. 

 fransarata from Lomaloma, which exactly coincides with Mousson's 

 original description, and agrees with his figure of a Viti Levu 

 shell. 



Mr. Brazier (in P. Z. S. 1871, p. 322) adds T. transarata to the 

 synonymy of fessonia. Schmeltz (in Cat. Mus. Godeff. v. p. 94, 

 sp. b9'iS9) quotes Mousson's var. T. depresso-striata as = fessonia, 

 and, judging from the Museum numbers, he does not include the 

 type, which is no. .5235 (see Cat. no. iv. p. 73), in the synonymy. 



Its small size, depressed conical form, rough irregular plicate 

 striae, brownish horn-colour with interrupted radiating pale stripes, 

 elevated spire, shghtly convex base, and small umbilicus are its most 

 prominent characters. 



9. Trochomorpha accurata. 



Trochomorpha (Discus) accurata, Mousson, Journ. de Conch. 

 1870, p. 120, pi. 7. fig. 2. 



Nanina {Microcystis) accurata, Paetel, Cat. Conch, p. 84. 



Helix accurata, Pfeiffer, Mon. Hel. vii. p. 290. 



A very rare species, found by Dr. Graife in rocks at Veria, in the 

 interior of Viti Levu. 



It has the spire more elevated than T. transarata, a greenish- 

 violet colour, the striae strong and irregular, the umbilicus small ; 

 •whorls 7, the last oue acutely carinated with a compressed, white 

 keel. Major diam. 14, height 12 millim. 



10. Trochomorpha corallina. 



Trochomorpha (Discus) ludersi, var. corallina, Mousson, Jouru. de 

 Couch. 1870, p. 123. 



I found a few examples of this species on elevated coralline reefs 

 in forests on Vanua Balavo, and took a large number in similar 

 stations on Mango Island. Dr. Graffe found it on coral-rocks on 

 Malatta and Tutuua, the latter one of the northern islands of the 

 Tonga group. 



It may be described as follows : — 



Shell nmbilicated, sublenticular, solid, finely and obliquely striated, 

 fulvous horn-colour, rarely whitish, with or without a marginal 

 dorsal and basal dark fuscous band ; spire convexly conoid, obtuse ; 

 suture depressedly margined above ; whorls 5g, slightly convex, 

 slowly and regularly increasing, the last one not descending in front, 

 acutely carinated ; base convex ; umbilicus small, about one seventh 

 the greater diameter of the shell ; aperture diagonal, subrhomboid- 



