282 GASTEROPODES. 
PLate XXXIX. 
Fic. 1. Tritonia Hombergii, spawn. 
2. Spawn, enlarged. 
3. Murex antiquus, spawn. 
4. Young of the same, from the spawn. 
5. One of the young magnified, shewing some correspondence with the 
Nautiline. ¢ 
. Another. 
7. Pellets discharged by the young, enlarged. 
lop) 
2. TRITONIA CERVINA.—Plate XL. Figs. 1-15. 
The aspect of this animal is very singular, because its form is of the 
most remarkable kind. Naturalists have bestowed different names on it ; 
some of them, and apparently those the most appropriate, from the 
striking resemblance of the more conspicuous members to a stag’s horns. 
Nevertheless, in the copious and learned work of Messrs Alder and Han- 
cock, it is proposed to restore a name said to be originally given by 
Miiller—Dendronotus. With great submission, I would prefer that which 
is most explicit. 
It is impracticable to describe or to explain the appearance of this 
creature without figures—indeed, scarcely with them. Artists, besides, 
have particular modes of representing objects, according as they hope to 
render them most intelligible. 
The branchiz rise upright from the cloak ; but, by being so repre- 
sented, they interfere with the view of each, and produce nothing but 
confusion. 
Instead of representing them here as upright and in profile, they are 
seen in the figures. as viewed from above, and as if diverging in plane, 
whereby all the parts are exposed quite distinctly. 
Length of specimens from an inch to an inch and a half. Body nar- 
row in proportion, fleshy. Head rounded, extremity tapermg. Mouth 
situate amidst the corrugated face of the under surface. The cornicula, 
a, rising from the neck, consist of two distinct members ; first, a pillar, 
with a socket above, cleft into five or six irregular leaves, serving as a 
