SCINTILLA.— Plate IV. 



Layakd's Scintilla. Shell thin, white, semipellucid, 

 narrow, elongated, middle a little inflated ; ventral 

 margin widely gaping; ends rather rounded. 



De.shates. ? 



Hab. Ceylon. 



This little open species is like a Ga/eomma in all but 



the structure of the surface. 



Species 32. (Mus. Brit.) 



Scintilla polita. Sci. testd alba, nitenti, semipelliicidd, 

 annpressd, concentrice I'ugatd, ohlongd, tctrinqui' 

 tnincatd ; latere antico hreviori ; margine ventrali 

 paulo hianti. 



The polished Scintilla. Shell white, shining, semi- 

 pellucid, compressed, concentrically wrinkled, 

 oblong, truncated at each end ; anterior side 

 shorter ; ventral margin a little gaping. 



Deshayes. ? 



Ilah. Isl. Samar, Philipi)ine.<. 



Species S3. (Mus. Brit.) 



Scintilla poeulosa. Sci. testd pallidissime rosed, minn- 

 tissime punctulatd, compres.id, elongatd, medio snhde- 

 pressd, cojicent}-ice ohscuro rugatd, niarginihus clausis. 



The porous Scintilla. Shell very pale rose, very 

 minutely punctured ; compressed, elongated ; 

 middle rather depressed, concentrically obscurely 

 wrinkled ; margins closed. 



Desh.\ye.s. Proc. Zool. Soc, 18.').5, p. 180. 



Hah. Isl. of Bohol. 



Species 34. (Mus. Brit.) 



Scintilla obliqua. Sci. testd ohliqur ohlongd, fused, 

 clausd, vaklc incequilaterali ; latere antico brevissimo, 

 truncato ; latere postico subinjlato ; marginibus 

 dorsali et ventrali rectidsculis. 



The oblique Scintilla. Shell obliquely oblong, 

 brown, closed, very inequilateral ; anterior side 

 very short, truncated ; posterior side rather 

 inflated, dorsal and ventral margins rather 

 straight. 



SowEP.rY. Thesaurus Conchyliorum. Scintilla, species 

 32, fig. 35. 



Iliib. Ecuador. 



Species 35. (Mi 



■ ? Copied.) 



Scintilla declivis. Sci. testd semipellucidd, parvd, 

 pallidi: fulvu, intiis fused, clausd ; valde incequi- 

 laterali ; latere iinlici> brevi : margine dorsali 

 utrinque dedivi. 



The SLOPED Scintilla. Shell semipellucid, .small, pale 

 fidvous, brown within, closed, very inequilateral ; 

 anterior side short ; dorsal margin sloped at eacli 

 side. 



SowERBY. Thesiiurus Conchyliorum, Scintilla, sp. 31, 

 fig. 30. 



Ilab. ? 



This little species is very oblique, and being half 

 transparent, shows through to the outer surface the 

 slight purplish colour of the inside. 



