102 BOOK OF SPECIES. 
rowed transversely; pale flesh- colour, often 
marked with rows of square fulvous spots; spire 
short, acute; pillar wrinkled beneath; margin of 
the lip crenated. 12. W. 22. 23. 
C. vipEx. Ovate-oblong, smooth, but slightly 
grooved at the base, pale fulvous, with darker 
longitudinal waved streaks; whorls of the spire 
somewhat rounded; aperture smooth and brown 
within ; lip spotted with dark chestnut, denticu- 
lated beneath. 24. W. 22. 36. 
C. ERINACEUS. Ovate-oblong, pale fulvous, 
slightly plaited longitudinally ; body-whorl angu- 
lated, with a transverse row, of nodules on the 
shoulder; mouth smooth; throat brownish; lip 
thickened, with a large margin edged with deep 
chestnut spots, and muricated beneath. 12. W. 
22. 32. 
RICINULA. 
Oval, generally tubercular or spinous externally ; 
aperture oblong, with a semi-canal at the lower 
part, curved towards the back, and terminated 
by an oblique notch; unequal plaits on the pillar 
and teeth on the lip within, contracting the 
aperture. 
R. HOoRRIDA. Obovate, sub-globose, with 
short thick acute black tubercles, and the in- 
terstices white and transversely striated; spire 
