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



A tliiii, turbinate, conical, reddish horn-coloured species, with 6 

 angulate whorls which are spirally lineated with elevated lines, two 

 on the body and one on the whorls of the spire so much larger than 

 the others as to give the former a biangular, and the latter an angu- 

 lar outline. The basal keel is small. Length 5| millim. 



]\Iousson's figure is not very characteristic. The whorls are too 

 much rounded, and do not exhibit the large spiral lines which modify 

 the outlines of the shell. 



Mr. Schmeltz refers it with a doubt to the genus Garrettia 

 { = Diadema, Pease). An examination of the operculum would de- 

 cide the question of its generic rank. 



6. Omphalotropis costulata, Mousson. 



Eealia {Omphalotropis) costulata, Mousson, Journ. de Conch. 

 1870, p. 190, pi. 7. fig. 10 ; Pfeiffer, Mon. Pneum. iv. p. 233. 



Omphalotropis costulata, Paetel, Cat. Conch, p. 124. 



A few examples found beneath dead leaves at Vanua Balavo, 

 where Dr. Grjiffe obtained the type specimens. 



A small, ovate, whitish horn-coloured species, 5| millim. long, 

 with 6 convex whorls, and furnished with small, longitudinal, 

 crowded riblets. The perforated base has a well-defined keel, and 

 there is sometimes faint indication of a peripheral keel. 



7. Omphalotropis subsoltjta, Mousson. 



Realia {Omphalotropis) subsohda, Mousson, Journ. de Conch. 

 1870, p. 192, pi. 7. fig. 12; Pfeiffer, Mon. Pneum. iv. p. 219. 



Omphalotropis subsulnta, Paetel, Cat. Conch, p. 124 ; Schmeltz, 

 Cat. Mus. Godeff. v. p. 100. 



Discovered by Dr. Griiffe at Oneata, one of the Windward Islands. 



A smooth, pale horn-coloured, turreted species, with 7| convex 

 whorls; the List one, which is slightly separated from the penul- 

 timate, is usually furnished with a filiform carina a little below the 

 periphery. A similar remote keel circumscribes the basal perfora- 

 tion. The vertical aperture is about one fifth the length of the 

 shell. Peristome porrected, continuous, and slightly patulous at the 

 base. Length 10 millim. 



8. Omphalotropis zebriolata, Mousson. 



Omphalotropis zebriolata, Mousson, Journ. de Conch. 1865, 

 p. 181, pi. 14. fig. 11, 1870, p. 193, 1873, p. 108; Pease, Journ. 

 de Conch. 1869, p. 145; Proc. Zool. Soc. 1871, p. 476; Paetel, 

 Cat. Conch, p. 124; Schmeltz, Cat. Mus. Godeff. v. p. 101. 



Realia {Omphalotropis) zebriolata, Mousson, Journ. de Conch. 

 1870, p. 193, 1871, p. 27; Pfeiffer, Mon. Pneum. iv. p. 225. 



Omphalotropis perforata, Mousson, Journ. de Conch. 1865, 

 p. 182, pi. 14. fig. 12; Pease, Journ. de Conch. 1869, p. 145; 

 Proc. Zool. Soc. 1871, p. 476; Paetel, Car. Couch, p. 124; 

 Schmeltz, Cat. Mus. Godeff. v. p. 101. 



