e OR es 
dum obsoletioribus decussatus; umbilicus latus, perspectivus ; 
aperlura lunato-suborbicularis; perist. simplex, acutum. 
Diam. 59/, alt. 2!/, mill. — Ins. Sandwich. 
295. Helix tenuicostata Shuttl. — 7T. umbilicata, 
depressa, tenuis, tenuiter costulata, cornea; spira convexiuscula, 
.gbtusa; anfr. 4 convexiusculi, ultimus antice non descendens, 
basi sublaevigatus; umbilicus latiusculus, perspeclivus; apertura 
subobliqua, lunato-orbicularis; perist. simplex, acutum , margine 
columellari vix dilatato. 
Diam. 2?/, alt. 1!/, mill. — Sardinia. (Coll. Cuming.) 
296. Helix circumlineata Küst. — T. umbilicata, 
depressa, subdiscoidea, tenera, hyalina, superne lineis confertis, 
spiralibus sculpta; sutura impressa, marginata; anfr. 5 angusti, 
vix convexiusculi; umbilicus latus, perspectivus; apertura ver- 
üicalis, late lunaris; perist. simplex, acutum, margine supero 
antrorsum arcuato, -columellari brevi, subsinuato, non dilatato. 
Diam. 5!/, alt. 2 mill. — Budua Dalmatiae (Küster.) 
297. Helix rudiuscula Pfr. — T. umbilicata, depressa, 
lenticularis, tenuis, irregulariter rugoso-stiriata, rudiuscula, cor- 
neo-fusca; spira vix convexiuscula; anfr. 5 subplanulati, regu- 
lariter accrescentes, ultimus non descendens; umbilicus majus- 
culus, perspectivus; aperlura perobliqua, angulato-lunaris: perist. 
simplex, acutum, margine supero antrorsum arcualo - dilatato. 
Diam. 9, alt. 3 mill. — Patria? (Coll. Cuming. ex itin. 
Belcheri.) ; 
298. Helix Lisbonensis Pfr. — T. rimato-perforata, 
globoso-depressa, ruguloso-striata, epidermide virenti-flava in- 
duta; anfr. 4!/, convexi, sutura profunda distincti, ultimus dila- 
latus, basi convexus; apertura lunato-semiovalis, intus lactea; 
perist. acutum, expansiusculum , intus valide albolabiatum, mar- 
gine columellari dilatato. 
Diam. 9, alt. 5 mill. — Lisbona. (Coll. Cuming.) 
299. Helix Gray New Zealand t. 1. f. 8. 
9.*) — T. subobtecte umbilicata, globoso-depressa, tenuiuscula, 
siriata et undique granulata, pallide fulvescens. sutura et area 
basali violaceo-castaneis; spira parum elata; anfr. 5 —5!/, con- 
vexiusculi, ultimus antice breviter deflexus; umbilicus angustus: 
apertura lunato-orbicularis, intus tenuiter roseo-labiala ; pawist. 
simplex, margine dextro recto, columellari dilatato ,. reflexo, 
roseo. 
*) Tabulas nonnullas operis nondum editi Cl. Gray mecum be- 
nevole communicavit, quarum nomina non omnia novi. 
