trtflpp’sr-— ^MoiiiitJSCA of TRi'tfibAi). 21 
Stenogyra octona Chemnitz* 
Helix octona, Chemnitz , Conch . Ceil* ix, 2, p* 190, t. 136, 
f. 1264. 
Bulimus oetonus, D ’ Or b. Voy. Am&r. Mdrid. Moll. p. 260* 
Achatina octona, Pfeiffer , Melic. II., p. 266, no. 65. 
A small cylindrical many-whorled colorless shell very 
commonly found in the cultivated ground and among de- 
caying wood and leaves. It is distinguished from the two 
following species by its columella being truncate. 
The eggs are subsphorical and have a white tostaceous 
envelope. 
This species is widely distributed in the West Indies, 
and it is also found in Guiana and other parts of South 
America. 
Height 15 mill., diameter 3 mill. 
Stenogyra octonoidcs C. A. Adams. 
Bulimus octonoides, D' Orligny , Moll, de Cula } t. 1, p. 
177, pi. xi bis, f. -2d, 24. 
A shell something like the last, hut with more rapidly 
increasing somewhat flattened whorls and a more elongate 
aperture. The columella is not truncate. It is found in 
the same situations as the last, but it is not so common. It 
is also found in some of the Antilles. 
This species hears so strong a resemblance to the figure 
given by D’Orbigny of his Bulimus lacterionides , in tho 
lt Voyage dans FAmerique moridionale,” that I should 
consider it identical were it not that in the description ho 
includes it among the species with a truncate columella. 
Height 12 mill., diameter 3 milL It is rather variable 
as to its height and breadth. 
Stenogyra caracasensis Beove. 
Bulimus caracasensis, Reeve Conch. Icon. Bui. 580. 
PfeifFor, Belie idee. III., Bulimus no. 634. 
