232 
248a. Helix Dohrniana Pfr. 
T. perforata, depressa, suborbicularis, tenuiuseula, sub- 
laevigata, parum diaphana, lutescenti-grisea; spira breviter 
conoidea, vertice minuto, obtuso; anfr. 61/, convexiusculi, 
regulariter accrescentes, ultimus non descendens, supra 
medium obsolete subangulatus, basi vix convexior, nitidior; 
apertura fere verticalis, transverse lunaris; perist. simplex, 
rectum, margine columellari declivi, levissime arcuato, ad 
perforationem reflexiusculo. — Diam, maj. 311/,, min, 28, 
alt. 15 mill, 
Hab. Siam. 
265a. Helix subceornea Pfr. 
T. subelause perforata, depressa, tenuis, laevigata, 
albido-cornea; spira vix conoideo-elevata, vertice subtili; 
sutura filomarginata,; anfr. 71/, convexiusculi, ultimus vix 
latior, basi convexior; apertura verticalis, auriformi-lunaris; 
perist, simplex, rectum, margine columellari longe declivi, 
subincrassato. — Diam. maj. 132/,, min. 12!/,, alt. 6 mill, 
Hab. Siam, 
Persimiüis A. resplendenti Phil. ; differt praesertim sta- 
tura, numero anfractuum, etc. 
3444, Helix Mouhoti Pfr. 
T. perforata, orbiculato-depressa, tenuiuscula, minute 
costulato -striata et superne lineis spiralibus impressis de- 
cussata, superne pallide cinnamomea, bası nitida, corneo- 
albida; spira convexa; sutura rufulo-marginata; anfı, 6 
convexiusculi, lente accrescentes, ultimus non descendens, 
subtus convexior; apertura obliqua, lunaris; perist. simplex, 
rectum, margine columellari leviter arcuato, ad perforatio- 
nem apertam triangulatim reflexo, — Diam. maj. 26, min. 
23, alt. 14 mill, 
Hab. Siam. 
Differt ab affinibus 7. ceylanica et semipartita an- 
fractibus lente accrescentibus. 
