PHASIANELLA. TURRITELLA. 75 



versely striated^ with longitudinal unequal reddish- 

 brown spots on a lighter and varying ground ; 

 apex acute, l^ , , 



TURRITELLA. 



Turreted, not pearly ; aperture rounded^ entire; 

 margins disunited at the upper party not re- 

 flected outwards/, a sinus in the right lip ; oper- 

 culum orbicular, horny. 



T. DUPLiCATA. Turreted^ thick, ponderous ; 

 whorls tawny white, darker above, with a reddish 

 apex, carinated and furrowed ; two of the keels 

 more elevated and larger than the rest. 4^. W. 

 32. 132. 



T. TEREBRA. Elongated, turreted, fulvous 

 red or reddish, with equal transverse furrows ; 

 whorls convex, twelve to fifteen ; spire acute. B. 

 4i. W. 32. 137. 



T. iMBRiCATA. Turreted, and transversely fur- 

 rowed; white, marbled with red and brown; whorls 

 twelve or thirteen, slightly gibbous at their lower, 

 and contracted at their upper extremities, which 

 gives them some slight appearance of being imbri- 

 cated downwards; apex very acute. 3J. W.32. 139. 



