290 HELIX §. 55. 



arcualo. — Diam. maj. 8'/:^, rain. 8, alt. 5 mill. (Coll. Nr. 460. 

 Spec. Lowean.) 



Helix calva Lowe Faun. Mader. p. 49. t. 5. f. 26. 

 Habitat in Maderae svlvis. 



757. H. albolabris Say. y^^. 



T. obtecte perforala, depresso-globosa, costulis obliquis 

 striisque spiralibus obsoletis , confertissimis subdecussata , flava ; 

 spira parum elata; anfr. 5^2 convexiusculi; apertura rotundalo- 

 lunaris; perist. angulatim late reflexum, intus album, nitidum, 

 callosum, ad columellam brevem, arcuatam dilatatum. — R. a. = 

 3:5. — Diam.maj. 36, min. 26, alt. 17 — 18 mill. (CoII. Nr. 461.) 

 Helix albolabris Say in Nichols. Enc. Conch. t. \. L i. 



— — Sa?/ Amer. Conch. t. 13. f. 1. 2. ■ -t 



— — (Hehcogena) Fer. pr. 75. liist. t. 43. f. 1 — 3. 



— — Bim. in Bost. journ. L p. 475. t. 13. 



— — GoM/t/report p. 170. f. 101. 



— — Pfr. Svmb. U. p. 22. 



— — Che77m. ed. IL Helix N. 53. t. 15. f. 7. 8. 

 Tridopsis albolabris Beck ind. p. 22. 



. .yj , List. svn. t. 47. f. 45 ! ^ 



^^/ ^''r'^';Magis globulosa: Fer. t. 43. f. 4. hT 

 ^^f\ " 7- Maxima: diam. 38, alt. 28 mill. (ic. Fer.J[ 



" Helix mcijor Binn. in Bost. journ. I. p. 473. t. 1 2. 



— albolabris var. Fer. t. 46 A. f. 7. 



Habitat in America boreali: Missouri, Ohio, Geoi^gia, Alabama, 

 Florida etc. 



Obs. Conf. H. zaleta Say. {Nr. 824.) 



758. H. multilineata Say. ;, 



T. obtecte perforata, depresso-globosa, tenuis, pellucida, 

 costulis minutis, obliquis, confertissimis ornata, corneo-straminea, 

 cingulis variis (25 — 30) angustis rufis circumdata; anfr. 6 con- 

 vexiusculi ; apertura lunato-rotundata ; perist. acutum , angulatim 

 reflexum, margine columellari in laminam tenuem, umbilicum 

 prorsus obtegentem, expanso. — Diam. maj. 23, min. 20, alt. 

 14 mill. (ColLNr. 462.) 



Helix multilineata Say in Phllad. journ. 11. p. 150. 



— — (Helicogena) Fer. hist. t. 46 A. f. 3. 



— — Binn. in Bost. journ. I. p. 480. t. 14. 



— — Pfr. Symb. L p. 41. 



— — Chemn. ed. IL Helix N. 427. t. 71. f. 17. 18. 

 Eurycratera multilineata Beck ind. p. 45. 



