208 
HELIX §. 44. 
H. dictyodes Pfr. 
T. anguste umbilicata, depressa, sublenticularis, oblique pii- 
cato-striata , tenuiuscula, diaphana, pallide cornea, fusco subtili- 
ter reticulata inaculisque castaneis justa suturam et carinam or- 
nata; spira late conoidea; anfr. 7 vix couvexiusculi, ultimus acute 
carinatus, antice non descendens; apertura subverticalis, de- 
pressa, lunaris, intus margaritacea ; perist. simplex, margine co- 
lumellari breviter dilatato-patente, basali sinuoso, reflexiusculo. 
— Diam. maj. 27, min. 23, ait. 12 mill. (Mus. Cuming.). 
Helix dictyodes Pfr. in Proc. Zool. Soc. 1 846. p. \\\. 
— — Pliil. Icon. III. t7. HelLx t. 10. f. 9. 
Habitat in Nova Guinea (Ince). 
545. H. tcctiformis Sowerby. 
T, umbilicata, depresse semiglobosa, tenuiuscula, calcarea, 
superne leviter striata, plerumque detrita, basi confertim granu- 
lata; spira brevis, obtusa; anfr. 7 planati, lente accrescentes, ul- 
timus acute carinatus: carina late deflexa, tectiformi; apertura 
trapezia; perist. acutum, superne simplex, rectura, basi reflexius- 
culum, ad umbilicum angustum, pervium vix dilatatum. — Diam, 
maj. 16, min. 15, ait. cyz mill. (Coli. Nr. 315.) 
Helix tectifor7nis Sow. in Zool. Journ. I. p. 57. l. 3; f. 6. 
— — Lotoe Faun. Mader. p. 43. t. 5. f. 12. 
— — Wood suppi, t. 8. f. 83. 
— — Lam. ed. Dli. 207. p. 126. 
— — Chemn. ed. II. Helix N. 599. t. 94. f. 13 — 15. 
Leucochroa tecMformis Beck ind. p. 16. 
Carocolla tectiformis Swams. Malae, p. 328. 
Habitat in insula Baxo prope Portosancto. 
546- H. Bulwcriana Lowc. 
T. umbilicata, semiglobosa, solidiuscula , minutim striata et 
sub lente minutissime granulata, fulva, fusco varie fasciata et 
marmorata; spira hemisphaerica, obtusa; sutura obsoleta; anfr. 8 
plani, angusti, subaequales, ultimus acute carinatus, subtus pla- 
nulatus; apertura semicircularis; perist, superne simplex, rectum, 
marginibus callo tenui junctis, basali incrassato, ad umbilicum 
angustum, pervium subreflexo. — Diam. maj. 17, min. 16, ait. 
8 mill. (Coli. Nr. 316.) 
Helix Bulweriana Lotoe Faun. Mader. p. 44. t. 5. f. M. 
— — Chemn. ed. II. Helix N. 69. t. 13. f. 9. 10. 
— Bulweyd Wood suppi, t. 8. f. 82. 
— rota Pot. et Midi. gal. I. p. 106? 
Carocolla variegata Mke syn. ed. 2. p. 24. 
