149 



subacuminata, peritreraate reflexo-patente, supeme acuminate, 

 latere umbilicali flexuoso, sinuato ; umbilico parvo. 



Shell of a turreted pyramidal form, of a pale colour, with 

 brown spots arranged in four rows ; apex decollated ; volu- 

 tions 4, rather ventricose and transversely striated ; suture 

 crenulated ; aperture rather oblique, somewhat elliptical, and 

 acuminated at the upper extremity ; peritreme slightly 

 reflected, spreading, acuminated above, flexuous and sinuated 

 on the umbilical side ; umbilicus small. From the Antilles. 



164. C. Fascia, (pi. xxviii. f. 176. 177.) Gray in Wood's 

 Supp. to Ind. Testae, t. 6. f, 8. 



T. turrito-pyramidali, pallida, fusco-fasciata, fasciis non- 

 nunquam varie interruptis ; apice plerumque decoUato ; 

 anfractibus 4 — 6, ventricosiusculis, plerumque decussato-stri- 

 atis ; sutura crenulata ; apertura subobliqua, elliptica, supeme 

 subacuminata, peritremate duplici, interno simplici, externo 

 variabile, reflexo-patente, supeme acuminato, latere umbilicali 

 flexuoso, sinuato ; umbilico minori ;, operculo spirali, anfrac- 

 tibus paucis, oblique striatis. 



Shell of a turreted pyramidal form, and generally of a pale 

 colour, with brown bands, which are sometimes variously 

 interrupted ; apex generally decollated ; volutions from 4 to 6, 

 rather ventricose, and generally decussato-striated, though 

 sometimes striated only transversely ; suture crenulated ; 

 aperture rather oblique, somewhat elliptical and acuminated 

 at the upper extremity ; inner peritreme simple, entire, outer 

 slightly reflected, spreading, acuminated above, flexuous and 

 sinuated on the umbilical side ; umbilicus small ; operculum 

 with few volutions, increasing rapidly in width, and obliquely 

 striated. West Indies 



165. C. QUATERNATUM. (pi. xxviii. f. l78. 179-) Lam. 

 Anim. sans vert. vi. pt. 2. p. 147. 



T. oblongo-subcylindracea, tenui, apice decoUato, anfractibus 

 4, convexis, spiraliter tenuissime striatis ; sutura crenu- 

 lata; apertura elliptica, superne angulifera, peritremate 

 continuo, disjuncto, angusto, reflexo ; umbilico minimo, 

 spiraliter striato. 



Shell oblong, somewhat cyUndrical, thin, pellucid, its apex 

 decollated, with 4 finely spirally striated, convex volu- 

 tions ; suture crenulated ; aperture elliptical, angular at the 

 upper part, with a narrow, reflected, continuous peritreme, 

 separated from the last volution ; umbilicus very small, with 

 a few spiral striae. Africa. 



