riter acerescentes, sutura tenui marginata sejuncti, ulti- 
mus subtus antice tumidulus; apertura magna, late 
lunarıs. — Diam. 6, alt. 3 mm. | 
Japan, Ikao et Takasaki. 
Hyalinia (Vitrea) minura n. 
Testa punctiformi perforata, depressa, spira paullisper 
turbinata, subtus tumido-convexa, alba, nitida, stria- 
tula; anfr. 31/,—4, sensim accrescentes, convexiusculi, 
sutura tenui et marginata discreti, ultimus parum la- 
tior, antice ne minime dilatatus, vix convexiusculus, 
infra tumidus; apert. late lunaris; perist. intus tenue 
sublabiatum, marginibus remotis, superiore mox des- 
cendente, inferiore strietiusculo, columellari pone in- 
sertionem angulum formantee — Diam. 1?J,, alt. 
2, mm. 
Japan, Fusijama. 
Helix (Patula) lepta n. 
Testa minima, anguste-umbilicata, convexo-depressa, utrin- 
que dense tenue membranaceo-lamellata, vix nitidula, 
flavescenti-cornea, concolor; spira convexa, obtusa; 
anfr. 51, —4 sat lente regulariter acerescentes, con- 
vexi, sutura profunda disjuncti, ultimus superne obtuse 
angulatus, subtus multo convexior, antice non descen- 
dens; apertura magna, lunato-rotundata; peristoma 
tenue, margine columellari superne late patulo.. — 
Diam. 1!/,, alt. 1 mm. 
Japan, Nagasaki. i 
Helix (Patula) ruderata Stud. 
var. opulens n. 
Testa globoso-convexa, dense costulata, late coneave um- 
bilicata; anfr. convexi, ult. obtuse angulatus, sutura 
profunda. — Diam. 7, alt. 5 mm. 
Berings-Insel. j 
