SCDiTlLLA.— Plate V. 



Species -12. (Fig. a, b, Mus. Brit.) 



Sci.NTiLL.^ TUiiGiDA. Sci. testd, tcuM, alba, infiatA; 

 latere antico brcvi, amjustiori, tmncato ; latere 

 postico oblique inflalo, rotunda, inargine dorsali 

 elevato; margine postico-dorsali vix ajierto ; maryinc 

 renlrali medio iiiflato, antice coiitracto. 



The turgid Scintilla. Shell tliio, white, inflated : 

 anterior side short, narrower, truncated, posterior 

 side obliquely inflated, rounded, dorsal margin 

 elevated ; posterior dorsal margin very little open : 

 ventral margin inflated in the middle, contracted 

 in front. 



Deshayes. Proc. Zool. Soc, 1855, p. 175. 



Hah. Isl. Samar, Philippines. 



Species 43. (Fig. a, b, Mus. Brit.) 



Scintilla scintillans. Sci. testd nitenti, medio sub- 

 cwnileo, siibpellucidd, veisiis marginem fidvidd, 

 optica, clavsd, oblongo-svbquadratd ; latere antico 

 breviori. marginibus dor.ialibus declivihus. 



TuE BuiGUT Scintilla. Shell shining, subpellucid in 

 the middle, fulvous, opa(iue towards the margin, 

 closed, subquadrate ; anterior side shorter ; dorsal 

 margins sloped. 



Desiiates. Proc. Zool. Soc, lb55, p. 175. 



Wxb. Isl. Bohol, Philippines. 



Species 44. (Mus. Brit.) 



Sciktilla oviii.iNA. Sci. testd, ohlongo-subquadratd, 

 tumidissima, nitenti, clausd, partim semipeUucidd, 

 luted; marginihus lateralibus decHvibus, margine 

 ventrali rectiitsculo. 



The oval Scintilla. Shell oblong- subquadrate, 

 rather tumid, shining, closed, partly semipellucid, 

 yellowish ; lateral margins sloped, ventral margin 

 rather straight. 



Deshates. Proc. Zool Soc, 1855. p. 171. 



Hub. Isl. Samar, Philippines. 



In structure this shell and the next are opaque and 



pellucid in bands. 



