260 the proceedings of the linnean society 



55. — Odostomia compta, n. sp. 



Shell eloQgate, very thin, smooth, transparent, white, whorls 8, 

 slightly convex, last minutely keeled in the centre, angulate at the 

 sutures, channelled, spire very much lengthened, aperture some- 

 what oblong, ovate, produced anteriorly, columella with strong thick 

 transverse spiral plait, peristome thin, acute, interior of aperture 

 near the edge granulated, furnished well down with 9 narrow, 

 minute raised lines of stria?, interstices broad, minutely granulated. 



Length ~l\, breadth 1 line. 



Hab. Darnley Island, Torres Straits, 20, 30 fathoms, sandy 

 bottom. 



50. — Odostomia polita, n. sp. 



Shell elongate, thick, smooth, white, shining, whorls 6£, slightly 

 convex, the last obsoletely keeled in the centre and contiguous to 

 the suture ; convex below, suture channelled, spire more than half 

 the whnle length, aperture roundly ovate, columella with strong- 

 oblique spiral plait ; excavated behind, peristome thin above, 

 thickened below, interior of aperture furnished from the edge of 

 lip with 7 narrow sharp-edged lines of stria?, half-way down the 

 stria? in the interstices are finer and transparent. 



Length 2 lines, breadth f lines. 



Hab. Darnley Island, Torres Straits, 20, 30 fathoms, sandy 

 bottom. 



57. — Odostomia parvula, n. sp. 



Shell acuminately ovate, rather thin, smooth, whitish, whorls 

 6, rather flat, the last small below the periphery, convex, sutures 

 channelled, spire long, aperture oblong ovate, produced anteriorly, 

 columella fold transverse, rather thick in the centre, thin at the 

 edge, peristome thin, acute, interior of the aperture furnished with 

 7 narrow lines of striae, interstices rough. 



Length If, breadth f line. 



Hab. Darnley Island, Torres Straits. 



58. — Syrnola cinctella. 

 Syrnola cinctella, A. Ad. Ann. Mag. Nat. Hist., 1860, vol. 6, 

 3 series, p. 33. 



