CYPE^A.— Plate XVII. 



The brown-tooth Coweey. Shell somewhat pyriform- 

 Ij ovate, posteriorly flatly depressed, slightly imibili- 

 cated, margins rather tliickeued, teeth nigose, ridged 

 across the base, columella smooth ; yellowish or dii-ty 

 white, teeth brown. 



Gray, Zool. Jomiial, vol. 1. p. 499. 



Hab. Cape of Good Hope. 



No examples of this species appear to have come to 

 hand in any better condition than that described more 

 than twenty years ago by Mr. Gray, with the back entirely 

 decorticated, but amply distinguished from any other at 

 the base. 



Species 89. (Mus. Cuming.) 



CypR/EA siMiLis. Cypr. testa subpyriformi-ovatd, ventri- 

 cosd, postice plano-obtnsd, crasskisculd, lateriins sub- 

 marginatis, aperturd latiusculd, dentlhiis exterioribus 

 subdistantlbns, basem versus partini elongatis, interior- 

 ibus parvis numerods irregulariim confertis ; sordide 

 albd, fuscescente spiram versus indistincte sparsim ma- 

 cidato. 



The similar Coweey. Shell somewhat pyriformly ovate, 

 ventricose, posteriorly flatly obtuse, rather thick, sides 

 slightly marginated, ajiertm'e rather broad, outer 

 teeth somewhat distant, partially elongated across the 

 base, iimer small, numerous, nregular, close-set ; dead 

 white, back indistinctly spotted here and there aromid 

 the spire with pale brown. 



Geay, Zoological MisceUauy p. 36. 



Hab. Cape of Good Hope. 



Tliis is another remarkable shell from South Africa of 

 which no other specimen has been seen. Like all the spe- 

 cies from that locality figured in the accompanying plate, 

 it is of an opake white, tinged with brown, without any 

 porcellanous enamel. 



Species 90. (Mus. Gaskoin.) 



Cype^a Algoensis. Cypr. testa oblongo-ovatd, postice 

 depressiusculd. latere dextro marginato, postice producto, 

 aperturd latiusculd, dentibiis exterioribus subelongatis, 

 interioribus parvis brevissimls ; luiescente-lacted, lateri- 

 lus dorsoque rubido-fusco punctatis. 



The Algoa Coweey. Shell oblong-ovate, rather depres- 

 sed posteriorly, right side marginated, produced poste- 

 riorly, apertm-e rather wide, outer teeth slightly elon- 

 gated, inner small, very short ; yellowish cream-coloiu', 

 sides and back dotted with reddish brown. 



Hab. Algoa Bay, South Africa. 



The inner teeth of this species are rarely represented by 



anything more than a row of granular nodules. 



Species 91. (Mus. Gaskoin.) 



Cype^a angustata. Cypr. testa ovatd, incra-^satd, late- 

 ribus tumidiuscuUs, submarginatis, basi depressd, denti- 

 bus parvis, prcecipue interioribus -. dorso cinereo-fusco, 

 lateribus albicantibus, pmictis grandibus castaneis con- 

 sptcue notatis, extremitatibus maculd castaiied utrinque 

 pictis, basi albd. 



The steaightened Coweey. Shell ovate, thickened, 

 sides rather swollen, slightly marginated, base de- 

 pressed, teeth small, especially the inner ; back ashy 

 brown, sides whitish, conspicuously marked with 

 large chesnut brown dots, extremities painted on each 

 side with a chesnut brown spot, base white. 



Hab. New Holland. 



Although a species comparatively not uncommon, the 

 specimen here figm-ed from the collection of Mi\ Gaskoin is 

 the only one I know that is not more or less worn, or un- 

 coated. It has a bright enamelled porcellanous sinface 

 consisting of a layer of dark brown coloming matter, over- 

 laid with a thin filmy coating of semi-opake cream colour. 



