148 Monograph on the Cyprceidce, by Mr. Gray. 



concave; spire quite concealed; inside white; axis A£, diameter 

 1 inch. 



20. Cyprceu sulcidentata. 



Testa ovato-oblonga, pallide castanea, carnea late quadrifasci- 

 ata ; lateribus incrassatis, luteo fusco arenosa ; basi marginibusque 

 albidobrunneisjsubsulcatis; dentibus concoloribus profunde divisis. 



Inhabits ? Mus. Tankerville, Nost. 



Shell ovate oblong, pale chesnut or grayish brown, with four 

 broad flesh coloured bands, sides thickened, bright yellow brown, 

 speckelled with pale whitish brown grains like sand, margin much 

 thickened, angular, in front above slightly produced margined, 

 pale brownish white ; base convex same colour as the side, paler 

 towards the mouth; aperture narrow, scarcely dilated in front; 

 teeth close together, with very deep groves between them, extend- 

 over the shelving edges of the lips ; columella front, deeply con- 

 cave, deeply groved, plaited like the teeth ; spire conical convex, 

 covered ; axis |£, diameter A§ of an inch. 



This was first pointed out to me by my friend Mr. G. B. 

 Sowerby ; it only differs from C. arenosa by the front part of the 

 margin, being produced, and the base being all of one colour, 

 with the very deep groves between the teeth extending partly over 

 the base, thus giving it somewhat the appearance of the base of 

 C. poraria. It is a most distinct and very interesting species. 



21. Cypraa achatina. 



Testa ovalo-ovata,albida incarnata quadrifasciata; basi convexa; 

 marginibus incrassatis sub-angulatis, cinereo lividis, supra casta- 

 neis fissurata, apertura dentibusque pallidis. 



Cyprasa Ventriculus. Lainarck Ann. Mus. xv, 452. Hist. vii. 

 381. 



Cypraea achatina, Solunder's Mss. Portland Catalogue. Dmwyn 

 R. S. 446 ! 



Cypraa Carneola, Marfyn U. C. i. t. 14. (Dillwyn.) 



Coast of Otaheite, Solandcr ; New Holland, Lamarck. Mus. 

 Sowerby. 



Shell ovate, pale whitish, with four flesh-coloured bands, the 

 margin thickened, produced rather angular above, and beneath 



