OVULA. 507 
that of Cyprea, extending beyond the shell. The mantle is 
aspersed with yellow papille, and the body with light pink 
blotches ; the sole of the foot is ash-colour. Not bemg in 
possession of our original notes, we have had recourse to 
memory and the ‘Enum. Moll. Sicil” of M. Philippi. It 
appears that the animal scarcely differs from Cyprea. 
OVULA, Bruguiére. 
O. patuLa, Pennant. 
O. patula, Brit. Moll. iii. p. 498, pl. 114 B. f. 1, 2; (animal) pl. N.N. 
fl —=4- 
O. acuminata ? Brit. Moll. ii. p. 500, pl. 114 B. f. 3. 
The shell preserves the same figure at all ages. The mantle 
is dark, reflexed largely over the shell on both sides; it is 
smooth, and not, as in Marginella and Cyprea, aspersed with 
papille. The branchial fold does not extend much beyond 
the margin of the hard part. The tentacula are long, slender, 
approximate, obtuse at the tips, dark, and form at their base 
external tubercles on which the small black eyes are set. The 
foot is longer and wider than the shell, truncate in front, with 
a longitudinal mesial groove on the sole; it is pale brown, as 
are the head and the bases of the tentacula. 
We have seen fifty of these animals alive, but being de- 
prived of our notes, we are indebted for the above, in part, 
to M. Philippi, which assistance, with the reference to the ac- 
count of the animal of Cyprea, from which the present species 
scarcely varies, will suffice for an ad interim notice, as we con- 
fidently expect to supply another from personal observation. 
We believe the O. acuminata is the young of this species ; some 
of our brethren dissent from this view, which we shall not 
abandon until the discovery of the animal shows that we are 
in error. 
I conclude by presenting a view of the numerical status of 
these animals. After a careful examination, I believe I shall 
not much err in the following estimate :— 
