•22 HELIX §. 4. 



brevis, obliqua, caliosa; aperlura subquadrangularis; perisl. sub- 

 incrassatuni, marginibus calio lenui junctis, supero arcuato. — 

 Diam. maj. 39, min. 36, alt. 22 mill. (Coll. Nr. 8.) 



Helix inversicolor (Heiicigona) Fer. pr. 132. Hist. t. 58 A. f. 7 — 1 2. 



— — Chemn. ed. II. Helix N. 538. t. 8 6. f. 6. 7. 

 Carocolla bicolor Lam. 8. p. 97. ed. Dh. p. 146. 

 CaracoUa bicolor Beck ind. p. 32. 



/?. Minor, subunicolor fusca, vel macuiis anguiaribus picta, vei basi 

 paulo saturatior; anfr. 6; spira plerumque elatior. — Diani. maj. 27, 

 min. 24, alt. 17 raill. (Spec.) 

 Helix inversicolor /?, y Fer. t. 58 A. f. 1—6. 

 Carocolla mauritiana Lam. 9. p. 98. cd. Dh. p. 146. 

 Caracolla mauritiana Beck ind. p. 32. 

 y. Var. notabihs : 



Helix puerocunae Pero/i. ( testc Fer. ) 

 Habitat in insula Isle de France. 



15. H. rostrata Pft-. '.^^ i^U 6 i?.„.'j, /■(././; 



.1, obtecte umbilicata, orbiculato - convexa , crassa, striala, 

 nigricans, zona 1 fulvida ad peripheriam, altera ad suturam ; spira 

 conoideo-subsemiglobosa ; anfr. 5 '/2 plani, ultimus carinatus, supra 

 carinam tumidulus, basi convexiusculus, antice vix deflexus; 

 carina compressa, acuta; apertura fere horizontalis , subtriangu- 

 laris; perist. crassum, album, ad carinam elevato-rostratum, mar- 

 ginibus callo crasso junctis, basali perdilatato, appresso-reflexo. — 

 biam. maj. 42, min. 37, alt. 17 mill. (Coll. Nr. 9.) 

 Helix rostrata Pfr. in Zeitschr. f. Mal. 18 47. p. 12. 



— — Chemn. ed. II. Helix N. 537. t. 86. f. 3 — 5. 



— marginata var. Fer. hist. t. 63, f. 9. 10. 



Habitat in insula Guba. (Misit Dr, Gundlach.) 



Obs. Sequonti quidem jffinis, attamen in speciminum copia transilum 

 non praebens. 



16. H. Sagemon Beck. 



T. obtectc umbilicata, orbiculato - convexa , crassa, striata, 

 lutea vel rufescens, fasciis latis nigricantibus varje ornata ; spira 

 elevata, obtusa; anfr. 5^2 planulati, ultimus carinatus, basi pla- 

 niusculus, antice gibbus, deflexus; apertura perobliqua, subtrian- 

 gularis; pcrist. incrassatum, reflexiusculum , album vel violaces- 

 ccnti-fuscum , marginibus callo lato junctis. — Diam. maj. 34; 

 min. 30, alt. 18 mill. (CoII. Nr. 10.) 



Caracolla Sagemon Beck ind. p. 31 (cx synon.). 



Helix marginata var. Fer. liist. t. 63. f. 5. 6. 5^ 10. 



— — Rang in Guer. niag. 1834. t. 36 (c. anmi, ). 



— marginatoides Orb. cub. I. p. 153. t. 5. f. 8 — 10. 



