CYPRAA. 505 
predecessor, so as almost to obliterate the traces of a spire, 
which is very short in Maryinella and Ovula, and entirely 
concealed in the adult Cyprea. None of these genera have 
an operculum, and the mantle in all is largely reflexed on the 
shell. This family terminates the British Muricidal group. 
CYPRAA, Linneus. 
C. rurop#A, Linneus. 
C. Europea, C. pediculus, C. arctica, Auct. 
C. Europea, Brit. Moll. iil. p. 495, pl. 114 A. f. 6-9; (animal) pl. N.N. 
f. 5-7. 
Animal inhabiting a strong, suborbicular, transversely-ribbed, 
white or pale flesh-coloured convolute shell. The mantle is very 
large, and can be reflexed on both sides so as to cover the 
entire shell; it is marked for some depth with alternate red, 
brown and white transverse stripes, sprinkled sparingly with 
minute sulphur-yellow well-raised papillae. The branchial fold 
extends beyond the shell, and is edged with orange-colour, 
marked on its surface with fine yellow lines, mixed with a 
few brighter dots, with its terminus more intensely yellow. 
The head is scarcely a projection, concave laterally, flat above, 
and from its central basal vertical fissure a long proboscis can 
be exserted, though it is rarely seen; the palate is imme- 
diately within it, enclosed by two transparent yellow corneous 
plates, between which a short spmous tongue proceeds to the 
stomach. Behind the buccal mass is the nervous cordon of 
two oval orange-coloured gangha. The tentacula are pale 
yellowish-white, marked with five or six imtensely yellow, 
flaky, minute dots; they are long, slender, round, tapering to 
rather a short obtuse point, greatly divergent, with eyes on 
very short pedicles at the external bases. The foot when in 
action is long, narrow, and rounded in front, yet slightly 
auricled, slender behind, but not very poited, and extending 
considerably beyond the shell; in the middle portion it is 
bluish-white, but posteally and anteally of a pale orange- 
brown, with a few small bright sulphur patches. The bran- 
