HELIX §. 53. 265 



693. H. orbiculata Ferussac. 



T. iinperforata, subsemiglobosa, solida, striata, virenti-fusca ; 

 spira convexa, obtusa; anfr. 5/4 planiusculi, ultimus obsolete 

 angulatus, ad peripheriara zonis 2 angustis, nigricanti-rufis cir- 

 cumdatus, basi planiusculus; apertura perobliqua, lunato-ciliptica; 

 perist. incrassatum, subreflexum, fusco-Yiolaceum, raarginibus 

 callo junctis, basali late transverse dentato. — Diam. maj. 34, 

 rain. 29, alt. 16 raill. (CoII. Nr. 412.) 



Helix orbiculata (Helicogena) Fer. pr. 8 6. Hist. t. 47. f. 4. 



— — Lam. ed. Dh. 2 1 6. p. 1 3 1 . 



_ _ Chemn. ed. H. Helix N. 424. t. 70. f. 9. 10. 



Dentellaria orhiculata Beck ind. p. 33. 

 /1 Rlinor, absqiie cingulis: diam. 24 , alt. 18 mill. (ex ic.) 



Helix orbiculata var. Fer. Iiist. t. 47. f. 3. 



Dentellaria decipiens Beck ind. p. 35. 

 llabitat in Guyana et Cayenne. 



694. H. phloiodes Pfr. 



T. imperforata, depressa, solida, sub epidermide corticina 

 (strigis saturatioribus variegata) nitide nigricanti-rufa ; spira sub- 

 planulata; sutura profunda; anfr. 4/2 convexi; columella subrecta, 

 perobliqua , subexcavata ; apertura late lunaris, intus livida, ni- 

 tida; perist. incrassatum, reflexum, fuscum. — R. a. = 3 : 5. — 

 Diam. maj. 29, rain. 25, alt. 17^2 mill. (Mus. Cuming.) 

 Helix phloiodes Pfr. in Pi-oc. Zool. Soc. 1 842. p. 151. 

 Habitat in insula Zebu Phihppinarum (Cuming). 



695. H. discolor Ferussac. 



T. iniperforata, depresso-globosa, sohda, striata, obsolete 

 granulata, paUide rufa; spira seraiglobosa; anfr. 4, sunirai planius- 

 culi, ultinius inflatus, angulatus , supra angulura fascia pallida 

 ornatus, subtus saturatior, antice gibbus, subito dellexus; aper- 

 lura irregulariter ovalis; perist. lato incrassatum, subreflexum, 

 marginibus callo junctis, supero dilatato, basali dente oblongo, 

 calloso raunito. — Diara. raaj. 34, rain. 28, alt- 20 mill. (GoU. 

 Nr. 413.) 



Helix discolor (Helicogena) Fer. pr. 79. Hist. t. 46. f. 3 — 6. 



— — Lam. 35. p. 75. ed. Dh. p. 43. 



— — Wood suppl. t. 7. f. 46. 



— — Che7nn. ed. U. Helix N. 47. t. 9. f. M. 12. 

 DenteUuria discolor Beck ind. p. 35. 



Ilabitat in Cayenne! Trinidad, Martinique (Fer.). 



Obs. l-^onna saepe iiTei»iilaris, losla a lalere quasi compressa , cliamelro 

 lonftiore aucta. 



