127 



smooth, of a pale colour, variously mottled and radiately 

 striped with brown; spire short, slightly acuminated and rather 

 obtuse ; suture not very distinct ; volutions 4|, rather ventri- 

 cose, generally with a sharply keeled edge, but sometimes 

 having the edge of the last volution rounded ; aperture cir- 

 cular, with a whitish, generally double, peritreme, inner 

 peritreme linear, outer broader, reflected, more or less broadly 

 extended over the umbilicus ; umbilicus moderate ; oper- 

 culum horny, thin, mulfispiral. 



Many varieties of this elegant species were brought 

 by Mr. Cuming, from the Islands of Siquijod, Zebu, and 

 Bohol. 



102. C. ciliatum. (pi. xxx. f. 237, 238.) nob. 



T. suborbiculari, conoidea, tenuiuscula, laevigata, fulves- 

 cente, fusco-radiatim strigata ; spirit brevi, submucronata, 

 apice acuminatiusculo ; anfractibus quinque subrotundatis, 

 ultimo magno, margine carinato, (carina epidermide ciliata :) 

 apertura circulari, peritremate reflexo, postice emarginato ; 

 umbilico magno ; operculo tenui, corneo, multispirali. 



Shell suborbicular, conoidal, thin, smooth, pale yellowish 

 brown, with irregular radiating brown stripes ; spire short, 

 with a rather acuminated apex, and five slightly rounded 

 volutions, of which the last is large and keeled at its edge, 

 where the epidermis forms a fringe of hairs ; aperture cir- 

 cular, peritreme reflected, forming a very small notch at the 

 upper or posterior extremity ; umbilicus large ; operculum 

 thin, horny, multispiral. Found under stones at South 

 Camarinas, Lucon, by Mr. Cuming. 



103. C. helicoide. (pi. xxx. f. 245, 246.) nob. 



T. suborbiculari, conoidali, crassiuscula, spiraliter striata, 

 fulvescente, fusco-radiatim strigata ; spira brevi, acuminati- 

 uscula, anfractibus 5 ad 6, rotundatis, antice lsevibus, postice 

 spiraliter striatis, obsolete 4 ad 5 carinatis, carinis duabus 

 posticis, epidermide ciliatis; apertura circulari, peritremate 

 duplici, albicante, postice emarginato, interim tenui, levatius- 

 eulo, externo angusto, reflexo; umbilico majusculo : 

 operculo tenui, corneo, multispirali. 



Shell suborbicular, conoidal, rather thick, spirally striated, 

 yellowish brown, with radiating dark brown stripes ; spire 

 short, rather acuminated, with 5 to 6 rounded volutions, 

 smooth anteriorly; spirally striated posteriorly, and with four 

 orfive obsolete keels, of which the two posterior are ciliated with 



