99 



23. C. fulvescens (pi. xxv. f. 79, 80.) nob. 



T. globoso-conica, tenuiuscula, pallide brunnea, spira sub- 

 acuminata, anfractibus 5, rotundatis, confertim spiraliter 

 striatis, ultimo maximo ; apertura fere circulari, peritremate 

 tenui ; satura distincta ; umbilico parvo. 



Shell globosely conical, rather thin ; of a pale brownish 

 colour, with transverse bands of darker brown ; spire rather 

 acuminated ; volutions 5, rounded, covered with close set 

 spiral strife ; the last volution very large ; aperture nearly cir - 

 cular, with a thin peritreme ; suture distinct ; umbilicus small. 



From Madagascar, sent to Mr. Cuming by M. Petit. 



24. C. ortyx. (pi. xxiii. f. 27. 28.) i/Orb. Mag. de 

 Conch, t. 117. f. 2. 



T. tenui, subglobosa, pallida, fusco-variegata, spira conoidea, 

 subacuminata, apice acutiusculo ; anfractibus 4 — 5, ventri- 

 cosis, spiraliter sulcatis et carinatis ; apertura circulari 

 sub-effusa, peritremate tenui, subreflexo, margine leviter 

 sinuato, umbilico mediocri, spiraliter sulcato; operculi 

 anfractibus oblique striatis. 



Var. sulcis carinisque anfractuum obsoletioribus. 



Shell thin, nearly globose, with a conoidal, somewhat 

 acuminated, rather sharp pointed, spire ; volutions 4 to 

 5, ventricose, longitudinally grooved and carinated ; aperture 

 circular, rather effuse, with a thin subreflected peritreme 

 whose edge is slightly sinuated; umbilicus of moderate 

 dimensions, spirally grooved ; operculum spiral, its volu- 

 tions obliquely stiated. From the Seychelles. 



25. C. undu latum, (pi. xxiii. f 29. 30.) nob. 



T. globoso-conoidea, crassiuscula, spira acuminatiuscula, 

 apice obtuso; anfractibus 5, ventricosis, spiraliter sulcatis, 

 superne prope suturam distinctam undulatis ; apertura fere 

 circulari, superne obtusissime emarginata, peritremate tenui, 

 latere umbilicali in callum incrassatum, supra umbilicum 

 parvum extenso ; umbilico spiraliter sulcato. 



Shell globosely conoidal, thickish, spire rather acuminated 

 with a blunt point; volutions five, ventricose, spirally grooved, 

 and undulated on the upper edge near the suture, which is well 

 marked ; aperture nearly circular, very slightly emarginated 

 near the upper part where it joins the last volution ; peri- 

 treme thin, except on the side next to the umbilicus, where it 

 is thickened into a callus nearly covering the small umbilicus, 

 which is spirally grooved. Bengal. 



26. C. spurcum, (pi. xxiv. f. 75, 76.) nob. 



