334 
HELIX 8. 62. 
877. H. bigonia Fcrussac. 
T. umbilicata, depresso -conoidea, tenuis, oblique striatula, 
fulvido-alba , fasciis rufis ornata, basi planulata; sutura Uncaris ; 
spira late conoidea; anfr. iVa planiusculi, ultimus basi angulatus; 
umbilicus angustus, pervius; apertura horizontalis, elliptica; 
perist. simplex, margine supero expanso, basali late reflexo. • — • 
R. a. = 3 : 4. — Diam. maj. 23, min. 19, ait. 13 mill. (Coli. 
Nr. 326.) 
Helix bigonia (Helicella) Fer. liist. t. 70. f. 2. 
— ~ Lam. ed. Dh. 170. p. 108. 
— — PhiL Icon. I. 4. p. 78. Helix t. 4. f. 7. 
— — Chem7i. ed. IL Helix N. 329. t. 58. f. 1 3. 1 4. 
— Samoixnsis Pfr. in Proc. Zool. Soc. 1842. p. 87. 
Planispira bigonia Beck iud. p, 30. 
Habitat in insula Samar Philippinarum (Guming). 
• 877% H. pedestris Gould, *}* 
T. rudis, depresso -globosa, late perforata, luteo-cornea, ad 
apicem virens , striis incrementalibus conspicuis inaequalibus et 
striis minutissimis conferiis volventibus decussata; anfr. 0^/2 con- 
vexiusculi, ullimus ventricosus, prope aperturam deflexus; aper- 
tura obliqua, transversa, rotundato -lunaris; perist. reflexum, 
album, ad basim dilatatum, juxta columellam sinuatum. — Lat. Ys, 
ait. y.poll. (G.) 
Helix pedestris Gould 1846. Exped. shells p. 18. 
Habitat in Nova Ilollandia (New South Wales). 
Obs. «Forma et aspectus H. zaletae; suillus H. profundae similior». 
S7S. H. Recltiziana Le Guillou. 
T. orbicularis, supra convexo-depressa, rufo-fusca, subtus 
albida; anfr. 5 leviter ac crebre striati, convexo-depressi, ultimus 
rotundatus, fascia alba, linea rufa superne marginata circum- 
cinctus; opertura subrotunda, reflexa, fusco-tincta; columella di- 
latata, intus truncata et obtuse unidenlala; umbilicus consolidatus, 
rufescens. — Diam. 26 — 27, ait. 17 — 20 mill. (G.) 
Helix Recltiziana Le Guill. in Revue zool. 1842. p. 137. 
Habitat . . . ? 
879. H. dichroa Pfr. 
T. umbilicata, globoso-depressa, tenuis, oblique striata, lineis 
confertis sub lente decussata, pallide cornea, diaphana, cingulis 
permultis, opacis, albis, interruptis ornata; anfr. 6 convexiusculi, 
ultimus antice deflexus, basi convexus; umbilicus angustus; aper- 
tura lunato-circularis, intus concolor; perist. tenue, marginibus 
conniventibus, supero expansiusculo, basali brevissime reflexo. 
