CASSIS CORRUGATA. 
(Lot 367.) 
C. (div. 2.) testd pallidd, linets transversis, fuscis, interruptis, rugis 
longitudinalibus brevibus, numerosis, fasciisque 2 nodulosis ornaté ; 
labio interiore dentibus obsoletis, internis, armato, et ad busin 
plicato. 
Shell pale, with transverse interrupted brown lines, and two bands 
of small nodules; inner lip obsoletely toothed within, and 
plaited at the base. 
No author can, with safety, be cited for this shell. Native 
of the Gallipagos. 
HARPA CRENATA. 
(Lot 360.) 
H, testé longitudinaliter plerumque 12-costatd ; labiw exterioris mar- 
gine denticulis crenatis armato. 
Shell with about 12 longitudinal ribs; margin of the outer lip with 
crenated teeth. 
I cannot find this very distinct, though common Harp, 
characterized by any writer. Little reliance can be placed 
on the colour of these shells, or on the number of their ribs, 
though (on Mr. Dillwyn’s authority) these appear to have 
been the primary distinctions selected by Solander in his’ 
MSS. It may, however, be remarked in this, that the mouth 
is never tinged with the deep blackish chesnut of the com- 
mon Harp, and the colours generally have a much redder 
tinge. It is likewise a smaller shell; but the true distinc- 
tion rests on the one having the lip always smooth, and the 
other having it broken into little teeth. 
