RICINULA, PURPURA. 103 
very short; mouth violet, toothed on both sides. 
ES.),. Vv 426, 47. 
R. ARACHNOIDES. Obovate, yellowish white, 
muricated by black subulate unequal spines, 
which are longer as they near the lip; mouth 
white, grinning; spire very short. 1. KE. 395.3. 
R. Morus. Ovate, girded by several rows of 
bluntish black nodules, with the interstices white; 
spire rather obtuse ; mouth violet, narrowed by 
stout teeth. 2. EK. 395. 6. 
6 
PURPURA. 
Sheil oval, sometimes smooth, sometimes tuberculous 
or angular; aperture dilated, terminating in- 
Seriorly in an oblique sub-channelled emargina- 
tion; columella flattened, terminating at base 
im a point. 
P. pATULA. Ovate, transversely furrowed, 
with six or seven rows of sharp tuberculations on 
the body-whorl; reddish black, with sometimes 
two broad paler bands towards the base; spire 
rather short; aperture dilated; pillar oblique, 
reddish fulvous, and falcated; lip bluish white. 
22. W. 22. 53. 
P.HEMASTOMA. Ovate-conic,thickish, trans- 
versely striated, cinereous, varying to greyish 
brown, noduliferous, obtusely angular above; 
