HELIX §.10. 49 



culi, ultimus basi planior; apertura lunaris; perist. simplex, acu- 

 tum, reclum, margine columellari vix reflexiusculo, intus subin- 

 crassato. — Diam. maj. 15, min. ISVa, alt. 10 — 11 mill. (Coll, 

 Nr. 49.) 



Helix ligera Say in Philad. journ. II. p. 157. 



— — Binney in Bost. jouni. III. p. 412. t. 20. f. 1. 



— — Chemn. ed. II. Helix N. 176. t. 33. f. 5 — 7. 



— Wardiana Lea obs. II. p. 67. t. 23. f. 82. 



— Rajinesquea Fer. pr. 311 ? Hist. t. 51 A. f. 5. 

 Lister t. 81. f. 82. (Say.) 



Habitat in America boreali : Missouri, Kentucky, Gincinnali. 

 b 9. H. Wardiana colore animalis solum diversa dicitur. 



91. H. intcrtexta Binncy. ■/.:-i^..hf.J:^j-. 



T. perforala , orbiculato-convexa , luteo-fulva , oblique" argiite 

 striata, lineis confcrtis concentricis granulato-decussata; spira 

 elevata, obtusa; anfr. 6/^2 convexiusculi , ultimus obsolete angula- 

 tus, fasciis obsoletis saturatioribus cinctus ; apertura lunaris; 

 perist. simplex, rectum, acutum, margine columellari superne 

 reflexiusculo, intus caUoso-incrassato. — Diam, maj. 1 5, min. 13/;, 

 alt. 10 mill. (Coll. Nr. 50.) 



Helix intertexta Binn. in Bost. journ. III. p. 413. t. 20. f. 2. 



— — Phil. Icon. II. 9. p. 5. t. 6. f. 16. 



— — Chemn. ed. II. Helix N. 177. t. 33. f. 8 — 10. 

 Habitat in Pennsylvania (Griffith), Ohio, Carolina septentr. (Binney.) 



Obs. DifFert ab H. ligera sculplura docussata, utrinque aequali. 



92. H. portoriccnsis Pfr. 



T. perforata, subturbinato-depressa, tenuis, diapharia, cor-hea, 

 confertim striata; spira elevata, acutiuscula; anfr. 5 convexiusculi, 

 sutui^a profunda disjuncti, ultimus striis nonnuilis spiralibus nota- 

 tus; apertura subverticahs, lunaris; perist, simplex, acutum, mar- 

 gine columellari ad umbilicum angustissimum dilatalo-reflexo. — 

 Diam. maj. 10, min. 9, alt. 7 niill. (Cofl. Gruner.) 



Helix Portoricensis Pfr. in Zeitschr. f. Mal. 1847. p. 13. 

 Habitat in insula Portorico. 



93. H. turbiniformis Ffr. 



T.' perforata , trochiformis, oblique striatula, corneo-albida; 

 spira elevata, apice acuta; anfr. 5 convexi, parum exserti; aper- 

 lura lunaris; perist. simplcx, acutum. — Diam. maj. 7, min. 6'/>, 

 alt. 4/, mifl. (Cofl. Nr. 51.) 



Helix turhiniformis Pfr. in Wiegm. Arch. 1839. I. p. 350. 



— — Chemn. ed. II. Hehx N. 644. t. 99. f 31—33. 

 I. 4 



