42. Nassa. Lam. 
( 40 ) 
Oval;mouthterminated Columellacoyered with 
below by a deep notch. 
Pl. 10, fig. 23. 
43. Purpura. (1) Lam. 
Oval. Pl. 14, fig. 2. 
a. Purpura. 
a plate. 
Columella naked, flat- 
tened. 
(Entomostomata.) 
Marine. 
Y. Animal, p. 69. 
Marine. 
VY. Animal, p. 69. 
6. Monoceros, Montf. A spine projecting from the base of the outer lip. 
# 
. Ricinella, Lam. 
14. Concuorepas. (2) 
Lam. 
Patelliform ; outer lip 
dentated ; spire ey 
small: operculum oval, 
horny. Pl. 410, fig. 47. 
45. Cassrparta. Lam. 
Monto. Montfort. 
Cenical; mouth effu- 
sive; notch terminating 
in a small canal reflected 
to the left at the base. Pl. 
41, fig. 6. 
16. Canceirarrs, (3) Lam. 
Oval, last whorl ven- 
tricose, right lp furrow- 
ed within the mouth; 
almost entire at the base. 
Pl. 11, fig. 6. 
(1) Foss. at Courtagnon. 
1, fig. 3 
Lip of the columella toothed. Pl. 14, fig. 4. 
A furrow from the 
cavity of the summit ter- 
minating between the 
two anterior teeth of the 
mouth. 
Columella covered by 
a simple plate formed by 
the left lip. 
Columella with com- 
pressed folds and a plate 
formed by the inner lip. 
Marine. 
Coast of Peru. 
Animal unknown. 
Marine. 
Y. Animal, p. 70. 
Marine. 
V. Animal, p. 69. 
(2) Lamarck placed the Concholepas with the Patella, but most zoologists seem 
now to agree with Bruguiere in approaching it to the Buccinum, since, according 
to Dombey’s report, the animal is furnished with a tendinous operculum, which 
only partly closes the shell. The muscular impression, like a large horse-shoe open 
in front, has some resemblance to that of the Calyptrea, 
(3) Foss, at Grignon; Piedmont; Environs of Florence. 
