SCINTILLA.— Plate VL 



Species 51. (Mus. Brit.) 

 SciXTii,i,.\ CHRTSTALLINA. Sci. tcstd ;;a?-vf2, fnlvA, 



pe.lhmdA, mibovato-rotundd, valde compressd ; mnr- 



gine dmsa/i uirinque hianti. 

 The cni:Y,STALLiNE Scintilla. SIioll small, fulvous, 



pollucid, subovately rounded, very compressed ; 



dorsal margin gaping at both ends. 

 Deshaves. Proc. Zool. Soc, 1855, p. 177. 

 Hah. Isl. Mindinao, Philippines. 



The smallest, and one of the most hyaline of all the 

 species. 



Species 52. (Fig. a, b, Mus. Brit.) 



ScixTiLLA pellicula. Sci . tcstd jiaiTtI, lacted, srib- 

 rotundd, compressd, pellucidd, conccntrice iindulathn 

 rugatA ; tei-minis apertis ; latere antico breviusculo, 

 ■iubtnincato ; latere postico oblique paulo prodiicto. 



The pellicle Scintilla. Shell small, milk-white, 

 rather round, compressed, pellucid, concentrically 

 undulately wrinkled ; ends open ; anterior side 

 rather short, rather truncated ; posterior side a 

 little obliquely produced. 



Desh.vyks. Proc. Zool. Soc, 1855, p. 177. 



/fab. Isl. Rohol, Philippines. 



A smaller and more rounded sliell than J^ciiitilla 

 squama, with more large and conspicuous wrinkles. 



Species 53. (Mus. Brit.) 



Scintilla vitp.^ea. Sci. testa ovato-subqvadraid,pallidi' 

 fulvd, tenuissimd, compressd, Jasciis subopacis ; 

 fere clausd ; terminis oblique truncatis : margine 

 dorsali recto ; umhonibus aciitis. 



The glassy Scintilla. Shell ovately-subquadrate, 

 pale fulvous, very thin, compressed, with rather 

 ojiaque bands : almost closed ; ends obliquely 

 truncated ; dorsal margin straight, uniboes 

 sharp. 



Desiiayes. Proc. Zool. Soc, 1855, p. 177. 



Hah. Isl. Bureas, Philippines. 



Species 54. (Mus. Nobis.) 



Scintilla opaca. Sci. lestd subovatd, tutenti. .ftramined, 

 ojmcd, clausd ; latere antico siibtruncato .■ margiiie 

 ventrali rectiuscnlo. 



The opaque Scintilla. Shell subovato, shining, straw- 

 coloured, opaque, closed ; anterior side rather 

 truncated ; ventral margin rather straight. 



SoWEP.BY. 



IJab. ? 



Although brilliantly polished, this little 

 opaque. 



shell 



