50 Mr. R. J. L. Guppy on the Terrestrial and 
The animal has a bright yellow mantle, the vascular system 
of which is beautifully displayed through the transparent yellow 
shell. Along the middle of the last whorl runs a vessel, from 
which branches are given off to each side. The pulsation of the 
heart can be very distinctly seen in this species. 
The lingual teeth are numerous; medians tricuspid; laterals 
with an oblique, reflexed cutting-edge, and with two short, 
rounded toothlets. Mandible semicircular, corrugate. 
Bulimus fraterculus, Fér. 
The Trinidad examples of this species are smaller than those 
of the Antilles, and seem to me to resemble somewhat B. ortho- 
doxus, Drouet, a Guiana species. The dimensions of the largest 
example I have found are as follows :—height 0-7 inch, greatest 
breadth 0:3 inch. 
Bulimus octonoides, Adams. 
A shell somewhat like Stenogyra octona at first sight, but dis- 
tinguished by the form of the whorls and of the aperture, and 
by the columella not being truncate. Perhaps B. subula, Pf., 
belongs to this species. 
Bulimus caracasensis, Reeve. 
B. micra, D’Orb.*, and B. oryza, Brug., seem to belong to 
this species. If this should prove to be the case, the latter 
name would be preferable. 
Lingual teeth numerous, on a very small dental band ; medians 
minute, simple, acute; laterals symmetrical, with three rounded © 
cusps, of which the middle one is the most prominent. 
This and the preceding are terrestrial in their habits. 
SrenoeyrRA, Shuttleworth. 
Shell subulate, whorls numerous, columella truncate. 
Stenogyra octona, Linn., sp. 
This species is very common in gardens and cultivations, 
where it lives on the ground, generally preferring to pass the 
day under leaves, pieces of wood, flower-pots, &ce. At night, in 
damp weather, it creeps out to attack the shoots and the bases 
of the stems of young and tender plants, doing thereby much 
mischief. The eggs, which are subspherical, and have a white 
testaceous envelope, often remain in the shell, whose aperture 
they nearly fill, and hatch after the death of the parent. 
* The examples of this species in D’Orbigny’s collection in the British 
Museum are labelled “ B. camba.” It may be difficult to ascertain what 
the latter species really is, as D’Orbigny, in his plates in the ‘ Voyage,’ 
gives the name to two different specics; and in the index he refers to a 
third plate, on which that name does not appear. 
