22 
LITTOKINID^. 
of the eyes at the tip of the tentacle^ as in Helix and 
its allies, and not at the base. It would appear as 
if there were in reality no tentacula, and only the 
tubercle, common to many Mollusca, at the base of 
the tentacula, a little more developed than usual.” 
I am inclined to retain my former theory; for if the 
pedicle of the eye of this genus is minutely examined, 
it will appear to be formed of two parts united by a 
suture. 
There has been a great controversy about this 
genus. Consult Ann. and Mag. Nat. Hist. 1855, 
xvi. pp. 114. 184. 272. and 422. ; 1836, xvii. 49. 56. 
A shell which I described from India, under the 
name of Turbo Francesia (Wood, Supp. t. 6. f. 28.), 
has been found by Mr. Benson to have the same kind 
of animal, and to be a second species of the genus. 
The central tooth is wider below, the base trun- 
cated in the middle, 
prominent on both 
sides; produced into 
a horn, cutting edge 
triangular, with five 
or seven pointed 
lobes. The first la- 
teral tooth v/ith seven lobes, the third lobe larger ; 
the second slender, upper part claw-like, serrated 
on the outside ; the third tooth rounded at the tip, 
ciliate, denticulate (fig. 2.). 
Fig. 2. 
a 
.' 7 / J - 
Teeth of Assiminia. 
a, central; b, c, d, lateral teeth. 
2. 1. Assiminia Grayana. Liver-coloured Assiminia. 
— Shell ovate, acute, solid, liver-brown ; suture 
slightly impressed ; mouth ovate, (f. 127.) 
