208 HELIX §. 44. 



544. H. dictyodes Viv.X/i^/Q^LKlnjCi^SQ,' 

 T. angusle uml)ilicala, depressa, sublenticularis, oblique pli- 

 cato-striata, tenuiuscula, diaphana, pallide cornea, fusco subtili- 

 ter reticulata maculisque castaneis justa suturam et carinam or- 

 nata; spira late conoidea; anfr. 7 vix convexiusculi, ultimus acule 

 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 dictyodes Pfr. in Proc. Zool. Soc. 18 46. p. 1 H. 



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

 Habitat in Nova Guinea (Ince). 



545. H. tectiformis Sowerby. '";■/, •■■.;. i'. /.'/''/< <-i'.c''- 



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. 6'/2 mill. (Coll. Nr. 315.) 



Helix tediformis Sow. in Zool. Joum. I. p. 57. t. 3. f. 6. 



— — Lowe Faiin. Mader. p. 45. t. 5. f. 12. 



— — Wood siippl. t. 8. f. 8 3. 



— — Lam. ed. Dh. 207. p. 126. . 



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

 Leucochroa tectiformis Beck ind. p. 1 6. 



Carocolla tectiformis Swains. Malac. p. 328. 



Habitat in insula Baxo prope Portosancto. 



546. H. Bulweriana Lowc!)/:^^/'./?/;?:^^;^^'^?^. 



T. umbilicata, semiglobosa, solidiuscula , mmutim stnaia '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. (Coll. Nr. 316.) 



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



— — Che?n7l. ed. II. Helix N. 69. t. 13. f 9. 10. 

 — • Bulweri Wood suppl. t. 8. f. 82. 



— rota Pot. et Mich. gal. I. p. 106? 

 Carocolla variegata Mke syn. ed. 2. p. 24. 



