290 MR. A. GARRETT ON THE TERRESTRIAL [Mar. 1, 



Genus Tralia, Gray. 



1. Tralia melanostoma (Garrett). 



Persa melanostoma, Garrett, Amer. Journ. Conch. 1872, p. 224, 

 pi. 19. fig. 11 ; Schmeltz, Cat. Mus. Godeff. v. p. 87. 



Melampus melanostoma, Pfeiffer, Mod. Pneum. (Auric.) iv. 

 p. 325. 



Abundant and gregarious under stones, near and a little below 

 high-water mark, ou the east end of Taviuni Island. 



A small oblong-ovate or elliptically 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 (Qnoy & Gaimard). 



Auricula costata, Qiioy & Gaimard, Voy. Astrol. ii. p. 173, pi. 13. 

 figs. 43-46 ; Deshayes, Lam. Ilist. viii. p. 337 ; Kiister, Auric, 

 p. 46, pi. 7. figs. 5-7. 



Melampus cosiatus, 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. A77. fig. 352/. 



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 alius, Gassies, Journ. de Conch. 1865, p. 21 1 ; Pfeiffer, 

 Mon. Pneuin. (Auric.) iv. p. 326. 



Melampus luiithis. Pease, Amer. Journ. Conch. 18G9, p. 75 ; 

 Pfeiffer, Mon. Pneum. (Auric.) iv. p. 327. 



Melampus pellucidus, Pease, Journ. de Conch. 1871, p. 93. 



Two specimens occurred to my notice under a clump of coral on 

 the east coast of Taviuni Island. 



A smootii white or horn-culoured species, 3g to 5 millim. long, of 

 an oblong-ovate form, with a rather j)roduced spire, and the plica- 

 tions the same as in the preceding species. 



Genus Laimodonta, Nuttall. 



I. Laimodonta layardi, H. & A. Adams. 



Ophicardelus layardi {Laimodonta), II. & A. Adams, Proc. Zool. 

 Soc. 1854, p. 35. 



