103 



superne acuminatiuscula ; peritremate tenui, subreflexo ; 

 umbilico minimo. 



Shell somewhat cylindrical, rather acuminated, with an 

 obtuse apex, whitish with fuscous dots ; volutions from 5 to 

 6, rather ventricose, smooth, very obsoletely decussated at 

 their upper edges ; aperture rather oval, rather acuminated at 

 the upper part ; peritreme thin, slightly reflected ; umbilicus 

 very small. Algiers. 



36. C. auranti acum. (pi. xxiv. 46, 47.) nob. C. 

 aurantium, Gray, Wood. Supp. t. 6. f. 23. 



T. acuminato-pyramidali, apice decollate, pallide fulva 

 aurantiaco vel fusco-variegata ; anfractibus 5, ventricosis, 

 hevigatis, nonnunquam decussatis, striis spiralibus eminen- 

 tioribus ; sutura distincta ; apertura subovalhsuperne acu- 

 minatiuscula, intus aurantiaca ; peritremate patente, albi- 

 cante ; umbilico minimo. 



Shell of an acuminated pyramidal form, truncated at the 

 tip, of a pale fulvous colour, varied with orange or brown ; 

 some specimens are of an uniform colour, and others haA-e 

 several very narrow orange or brown irregular bands ; volu- 

 tions 5, ventricose, smooth, sometimes more or less stronglv 

 decussated, the spiral striae being the most prominent ; 

 suture distinct ; aperture rather oval, slightly acuminated at 

 the upper part, of an orange colour within ; peritreme spread- 

 ing, whitish, umbilicus very small. The apex of this and 

 several others is deciduous, so that when full grown they are 

 always truncated at the tip. I have never seen the young 

 shell of this species. 



37. C. simile, (pi. xxiv. f. 48, 49.) Gray, M. S. ined. 

 T. subacuminato-pyramidali, apice decollate, albicante, 

 interruptim fusco lineata ; anfractibus 4, ventricosis, ple- 

 rumque decussatis, nonnunquam hevigatis, striis spiral- 

 ibus eminentioribus ; sutura distincta ; apertura subovali, 

 fauce crocea, peritremate patente, albicante ; umbilico 

 minimo. 



Shell of a somewhat acuminated pyramidal form, truncated 

 at the tip ; whitish or pale ferruginous, sometimes a little 

 variegated, and sometimes with interrupted brown lines ; 

 volutions 4, ventricose, generally strongly marked with de- 

 cussating striae, the spiral striae being the stronger, sometimes 

 nearly smooth ; suture distinct ; aperture nearly oval, inside 

 saffron-coloured ; peritreme spreading, whitish, umbilicus 

 very small. Islands of the Mediterranean 



