70 BOOK OF SPECIES. 



dish violet undulated rays ; the whorls contiguous. 

 t...|. B. W. 29. 48. 



T. ciNERARius. Sub-conical^ summit pro- 

 duced ; whorls slightly convex ; umbilicus small, 

 pale ash-colour, with crowded oblique purplish- 

 brown lines. B. 2-...|. W. 29. 49. 



T. Pharaonis. Orbicular - conoid, entirely 

 covered by granular belts of crimson, alternating 

 with articulated ones of black and white, umbi- 

 licated ; aperture furrowed w^ithin ; mouth and 

 pillar toothed ; umbilicus crenated. f . . . f . W. 

 28. 30. 



T. ERYTHROLEUcus. Conical, with obsolete 

 transverse crenulated striae, and a broader rib at 

 the margin of the whorls ; summit crimson ; in- 

 side pearly; colour yellowish or pinkish grey, 

 sometimes clouded with brown ; very small. B. 

 W. 29. 91. 



T. TUMiDUS. Sub-conical, transversely stri- 

 ated, and the whorls produced and flattish ; body- 

 whorl sub-carinated ; cinereous brown, more or 

 less obscurely streaked longitudinally with brown ; 

 suture deep; umbilicus small; B. very small. 

 W. 28. 207. 



MONODONTA. 



Ovate or conoid; aperture entire, rounded; mar- 

 gins disunited above ; columella arcuated, trun- 

 cated at the base ; an operculum. 



