Terrestrial Mollusca from Trinidad. 441 
diminuta and H. perspectiva; but it is much more conical 
than those species or any of their allies that I am acquainted 
with, having in this respect more of the shape of H. laby- 
rinthica, Say. 
8. Bulimulus tenuissimus, Fér. 
A species not hitherto distinguished by me from B. frater- 
culus. If the Trinidad form now recorded is really B. tenuis- 
simus, it differs from Antillian examples in having a narrower 
mouth. — 
9. Pupa uvulifera, n. sp. 
Testa umbilicata, cylindrica, paulum ovata, leviter striatula, corneo- 
_brunnea, parum nitens; anfr. 5-6, convexi; apertura semi- 
ovata, plicis munita, plica parictalis verticalis, lamelliformis ; 
margo externus incrassatus, reflexus, margo columellaris late 
reflexus ; umbilicus apertus, haud profundus. 
Long. 3 millim., lat. 1. 
Allied, probably, to P. jamaicensis. Itis of somewhat stouter 
figure than that species. 
10. Pupa auriformis, n. sp. 
Testa subperforata, ovata, brunnea, subpellucida, leviter striata, vix 
nitens ; anfr. 44—5, convexi, ultimus dimidiam longitudinem su- 
perans; spira brevis, convexa, apex obtusus; apertura semi- 
ovalis, auriformis, plica parietali munita; peristoma incrassatum, 
reflexum, margine externo valde sinuato, margine columellari late 
reflexo. 
4 ‘Long. 2 millim., lat. 13. 
Distinguished from the last by its shorter and more ovate 
figure. | 
. 11. Helicina ignicoma, nu. sp. 
Testa orbiculato-conoidalis, radiatim sinuato costellata, tenuis, sub- 
diaphana, nitens, subrufa; spira brevis, conoidalis; apertura 
oblique semiovata; columella brevissima, simplex; peristoma 
anguste expansum et reflexum, margine basali parum sinuato ; 
callus basalis tenuis, albidus. 
Alt. 3 millim., lat. maj. 44, lat. min. 4. 
Operculum tenue, diaphanum. 
An orbiculate conoidal Helicina, sculptured with numerous 
fine, oblique, somewhat sinuate riblets; with five whorls, the 
last somewhat carinate; aperture oblique, semiovate; peri- 
stome narrowly expanded and reflected ; basal margin slightly 
sinuate. 
_ Very closely allied to H. rugosa, Pf. (Cuba), and scarcely 
less so to H. plicatula (Martinique, Dominica, &c.). One 
character gives a ready distinction: in the two species men- 
Ann. & Mag. .N. Hist. Ser.4. Vol. i. 31 
