208 IIELIX §. 44. 



544. H. dictyodes Pfr. 



T. anguste umhilicala, depressa, sublenticularis, oblique pli- 

 cato-striata, tcnuiuscula, diaphana, pallide cornea, fusco subtih- 

 ter reticulata maculisque castaneis justa suturani et carinam or- 

 nata; spira late conoidea; anfr. 7 vix convexiusculi, 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, alt. 12 mill. (Mus. Cuming.) 

 Helix dictijodes Pfr. in Proc. Zool. Soc. 18 46. p. 111. 



— — Phil. lcon. m. 17. Helix t. 10. f. 9. 

 Habitat in Nova Guinea (Ince). 



545. H. tectiformis 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, rectum, basi reflexius- 

 culum, ad umbilicum angustum, pervium vix dilatatum. — Diam. 

 maj. 16, min. 15, alt. G'/. mill. (Goll. Nr. 315.) 



Helix tectiformis Soiv. in Zool. Journ. I. p. 57. t. 3. f. 6. 



— — Loive Faun. Mader. p. 45. t. 5. f. 12. 



— — Wood suppl. t. 8. f. 8 3. 



— — La7n. ed. Dh. 207. p. 126. 



— — Chemn. ed. II. Helix N. 599. t. 9 4. f. 13 — 15. 

 Lencochroa tectiformis Beck ind. p. 16. 



CarocoUa tectiformis Sivains. Mahic. p. 328. 

 Habital in insula Baxo prope Portosancto. 



546. H. Bulwcriana Lowe. 



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, alt. 

 8mill. (Gofl. Nr. 316.) 



Helix Bulweriana Lowe Faun. Mader. p. 44. t. 5. f. 1 1. 

 _ _ Chemn. ed. II. Helix N. 69. t. 13. f 9. 10. 



— Bidweri Wood suppl. t. 8. f. 82. 



— rota Pot. et Mich. gal. I. p. 106? 

 Carocolla imriegata Mke syn. ed. 2. p. 2 4. 



