41. Prerocera. Lam. 
Ventricose , with an 
elongated canal; right lip 
dilated in a wing (in the 
adult) divided into long, 
narrow digitations. Pl. 11, 
fig. 16. 
12. Conus. (4) Lam. 
Like inverted cones, or 
cylindrical ; mouth longi- 
tudinal, narrow, simple, 
effusive at the base : oper- 
culum small, horny. 
pee 
~ 
Marine. 
V. Animal, p. 70. 
Marine. 
Generally within the 
tropics, at ten or twelve 
fathoms deep, near sandy 
coasts. 
V. Animal, p. 68. 
a Conical spire, crowned with tubercles. Pl, 11, fig. 21. 
6 Conical spire, not crowned with tubercles. Pl. 11, fig. 22. 
e Sub-cylindrical spire, not crowned with tubercles. 
3. Ovuta. Brug. 
Gibbous, elongated in 
a pomtateachend; mouth 
longitudinal, Pl. 11, fig. 
8, 10. ; 
14. Axera. Muller. 
Oval-oblong or oval- 
concave; more or less 
rolled on itself; no pro- 
jecting spire; mouth as 
long or almost as long as 
the shell, without notch or 
canal. 
Both lips rolled in- 
Right lip sharp. 
V. Animal, p. 68. 
Marine. 
In the muddy bottoms 
of the seas of all climates. 
V. Animal, p. 61. 
a Bullea, Law. Contained within the mantle, too small to hold the 
animal, Pl. 5, fig 18. 
6 Bulla (5), Zam. Covered with a thin epidermis, large enough to contain 
the animal, and turned more than the Buttwa, PI. 5, fig. 17. 
C. Almost flat. 
45. Aptysra. Lin. La- 
PLISIA. Sam. 
A little convex within, 
obliquely conical ; base 
thin, summit thickened 
and obscurely spiral. PI. 
13, fig, 5. 
(4) Foss. at Courtagnon; Grignon. 
Horny. 
Marine. 
V. Animal, p. 60. 
The Conus deperditus, Lam. found. in the 
calearéous shelly matter in the environs of Paris, is, according to Bruguiere, the 
analogous fossil of the Cone treilliséc, which lives in the Pacific Ocean, in the neigh- 
bourhood of Otahcite. 
(9) Foss at Grignon. 
