318 GASTEROPODKES. 
specks or eyes, apart from each other, not deep-seated in the flesh, but 
quite conspicuous. 
The middle of the back is bare. Seven pair of elongated, clavate, 
truncated, branchial papillze border the body. The upper four are con- 
siderably apart ; the other ten more crowded together ; and the lowest 
pair seem as if merely cleft asunder. The body is of a dingy colour, 
with white specks ; the branchiz, also speckled, shew a dark centre, 
amidst a lighter exterior. 
Only one specimen occurred, which was lively and active, and sur- 
vived about three weeks. 
Piate XLV. 
Fic, 28. Eolis ventilabrum—Fan-head Kolis: back, enlarged. 
II. Among the fuci in pools, on the southern shore of the Forth, 
and down as far as Kyemouth, is found an animal black to the eye, 
which is now ascribed to the Doridean tribes. 
Length above a line, back very convex, belly narrower, best seen 
as it swims supine ; front of the head thick, apparently cleft ; eyes two, 
black, far apart, seated amidst a white portion on the upper surface. 
The body appears enlarging like a barrel over the narrow sole ; so that 
the animal seems carrying a load. 
On June 5, specimens, substances which I considered ova, were 
deposited on a fucus. 
This animal dwells at about half tide. 
When Dr Johnston first observed it, he proposed that it should be 
denominated Limapontia nigra. Messrs Alder and Hancock, in reclaim- 
ing it to the present tribe, propose a new order for its reception. Along 
with a description they give its anatomy.—Annals and Magazine of 
Natural History, Science, &c. Second Series, vol. i. p. 402.—Plate xx. 
figs. 4, 5, 6. 
