432 Mr. R. J. L. Guppy on the Terrestrial 
growth somewhat sinuate; whorls (? about five or six) little 
convex, the last narrow and forming half or more of the length 
of the shell; aperture narrow, rather produced anterior Y, 
elongate oval ; ; peristome simple, a little effuse anteriorly, its 
margins joined by a thin callus on the body-whorl ; columella 
reflexed over the narrow umbilical fissure. 
I obtained a single living example of this species; but, un- 
fortunately, the spire got broken off, so that my description i is 
somewhat imperfect. Nevertheless it seems to be a very dis- 
tinct species; and, although very like a Stenogyra im wie se I 
am inclined to place it rather with Bulimulus. It is, perhaps, 
allied to B. montivagus, D’Orb. ; but its proportions are > much 
more elongate relatively. 
11. Amphibulima patula, Brug. | 
More common on the outskirts than in the interior of the 
forests. 
12. Amphibulima pardalina, n. sp. 
Testa elongato-ovalis, succinoidea, tenuis, flexibilis, diaphana, leviter 
decussata, fulvo notata; anfr. 3; spira parva, obtusa; apertura 
ampla, ante dilatata; peristoma simplex, superne inflexum ; 
sutura descendens. 
Long. 20 millim., lat. 11 millim.: spire alt. 3; aperture lat. 9. 
An oval-elongate, Succinea-shaped, thin, flexible, somewhat 
diaphanous shell, finely decussate and generally marked by 
irregular rows of small, elongate, fulvous spots; having a 
small obtuse spire and a very large aperture, much dilated 
anteriorly, The animal resembles that of Omalonyx unguis, 
Fér. (D’Orb. Voy. Amér. Mérid, pl. 22. f. 1-7). The foot is 
translucent, like a bit of ice dipped in milk, the internal organs 
showing as a dark variegated patch about ‘the shell, into ah 
the body is incapable of retraction. It lives buried i in the very 
thick moss on the trees in the higher regions of the forest, 
where the vegetation is always dripping with moisture. A, 
pardalina is very near to A. tigrina (Lesueur) ; but the dif- 
ferences induce me provisionally to assign a new name to the 
Dominican shell. 
Forming my judgment from the soft parts and the in 
dentition, I should separate Amphibulima as a genus from 
Succinea. The genus Amphibulima might then be divided 
into the following groups :— 
Amphibulima s. strict. Type A. patula. 
Omalonyx, D’Orb. Type A. unguis. 
Brachyspira, Pf. Types A. pardalina and A. tigrina. 
Ee Ny oe te Pant oa 
