3G0 ODOSTOMIA. 



0. Amanda, Garrett. PI. 18, fig. 52. 



Rather thin, subpellacid, somewhat shining, cinereous, longi- 

 tudinally ribbed, constricted below the suture, forming a row of 

 granules, interstices of equal width and spirall}' impressh' striated ; 

 whorls 7, convex, suture deep and crenulated ; tooth obsolete. 



Length, 3 mill. 



Viti Is. 

 0. PULCHRA, Garrett. PI. 70, fig. 53. 



Thin, slightl}^ shining, remotely longitudinally ribbed, with 

 wider, closely spirally ridged interstices ; whorls 7, convex, nar- 

 rowly shouldered above ; white ; plait small, oblique. 



Length, 4'5 mill. 



Viti Is. 

 0. SULCATA, Garrett. PI. 79, fig. 54. 



Rather solid, subpellucid, shining, white ; whorls about 12, 

 longitudinally grooved, with narrower interstices, gradually dis- 

 appearing on the back of the body-whorl, suture deep ; plait 

 stout, callous. Length, 8*5 mill. 



Vili Islands. 

 0. OBELI sous, Garrett. PI. 79, fig. 55. 



Shell thin, hyaline, white, decussated by microscopical longi- 

 tudinal lines and spiral impressed striae ; whorls 10, suture linear, 

 margined; plait rather small. Length, 6*5 mill. 



Viti Islands. 

 0. viTREA, Garrett. PL 79, fig. 56. 



Thin, vitreous, pellucid, smooth, shining; whorls II, suture 

 linear, rather widely margined ; aperture with revolving lamellae 

 within, fold stout; umbilicus with a small fissure. 



Length, 7*5 mill. 



Viti Islands. 

 0. EXiLis, Garrett. PI. 79, fig. 57. 



Fragile, pellucid, shining, white, finely longitudinally striated; 

 whorls 6-8, convex, suture well impressed ; columellar fold 

 small. Length, 4 mill. 



Viti Islands. 

 0, DENSESTRiATA, Garrett. PI. 79, fig. 58. 



Thin, pellucid, shining, white ; whorls II, flatly convex. closely, 

 finely spirally striated, crossed by more delicate growth-lines, 

 suture impressed ; plait rather small. Length, 9 mill. 



Viti Islands. 



