68 



opertura verticalis, angusta , angiilato-Iunaris; perist. 

 Simplex, rectum, acutum. 



Diam. maj. b^/^, min. 5, alt. 27* va\\\. 

 Habitat . . . . ? 



8. Helix Flora Pfr. 



T. umbilicata, depressa, tenuis, superne striatula, ni- 

 tida, albida, epidermide fulvo cornea , lineis saturalioribus 

 radiata indula; spira subplana; sutura impressa; anfract. 

 4 vix convexiusculi, celeriter accrescentes , ultimus non 

 descendens; umbilicus perspectivus; apertura ampla, pa- 

 rum obliqua, rotundato-lunarisj perist. simplex, acutum, 

 marginibus conniventibus. 



Diam. maj. 34, min. 28, alt. 14 mill. 

 Habitat in Andibus Columbiae. 



9, Eelix callifera Pfr. 



T. imperforata, depressa, tenuis, laevigata, nitida, pel- 

 lucida, fulvo Cornea j spira parum fornicato-eleva(a j sutura 

 vix impressa; anfract. 5V2 planiusculi, lente accrescentes, 

 ultimus medio subcarinatus, basi subplanatus, medio albo- 

 maculatus; apertura subverticalis, transversa, angulato- 

 lunaris; perist. simplex, acutum, rectum, margine columellari 

 brevi , callo dentiformi retrorsum prolongato , incrassato. 



Diam. maj. 7, min. 6, alt. 3 mill. 

 Habitat in insulis Marquesas. 



10. Helix disculus Pfr. 



T. imperforata, discoidea, tenuis, laevigata, nitida, 

 pellucida, ru fo- cornea : spira plana; sutura vix impressa, 

 marginata; anfract. 6 plani, lente accrescentes, ultimus 

 superne obsolete angulatus, basi planiusculus, medio im- 

 pressus; apertura verticalis, anguste lunaris; perist. sim- 

 plex, acutum, rectum, margine basali substricto. 



Diam. maj. 7, min. 6, alt. 3 mill. 

 Habitat in insulis Sandwich. 



