IIELIX §. 13. 59 



125. H. indentata Say. 



T. subperforata , depressa, pelluclda, pallide cornea, uilidis- 

 sima, lineis radiantibus impressis, regulariter distanlibus (in an- 

 fractu ultimo circa 28) notata; spira planiuscula; anfr. 4 '/2 cele- 

 rlter accrescentes , ultimus circa foramen punctiforme excavatus: 

 apertura depressa, ampla, lunaris; perist. simplex, acutum, mar- 

 gino supero antrorsum arcuato. — Diam. maj. 5, min, 4 '/2, alt. 

 2'/« miU. (Coll. Nr. 68.) 



Helix indentata Saij in Philad. journ. II. p. 372. 



— — Binn. in Bost. journ. III. p. 41 5. t. 22. f. 3. 



— — Gould report p. 1 8 I . f . \ 09. 



— — Chenm. cd. II. Ilelix N. 190. 1. 34. f. J 2 — 1 5. 



Ilabitat in America boreali, New Jerscy (Sav), Massachuselts 

 (GouId),PhiIadeIphia (Griffith). 



126. H. hyalina Ferussac. 



T. vix subperforata , suborbiculata , arctispira, vitrea, dia- 

 phana, glabra, nitidissima; anfr. 6 planulati; apertura angustis- 

 sime lunaris; perist. rectum, simplex. — Diam. maj. 473, min. 4, 

 alt. 2 mill. (Goll. Nr. 69.) 



ffelix hyalina (Helicella) Fer. pr. 224 ct Mus. ! 



— ' — Rossm. VIII. p. 36. f. 530. 



— — Chemn. ed. U. Ilelix N. 554. t. 88. f. 20 — 23. 



— contorta ffeld in Isis 18 37. p. 304 ? 



— — Ary/?. Bull. Mosc. IX. p. 168?*) 

 Vitrea diaphana Fitzing. syst. Vcrz. p. 99. 

 Polita contorta ffeld in Isis 18 37. p. 9 16? 



Habilat in Germania, Gallia etc. rarior. 



1-27. H. erystallina Miiller. 



T. perforata, depressa, vitrca, diaphana, glabra, nilidissima; 

 anfr. 4 — 4/2 planiusculi; apertura lunaris; perist. rectum, simplex. 

 Diam. maj. 4, min. 3V2, alt. r/^ mill. (CoII. Nr. 70.) 

 ffelix crystaUina Milll. \cvm. II. p. 23. N. 223. 



— — Z>ro;j. p. H8. t. 8. f. 13 — 20. 



— — C. Pfr. I. p. 46. t. 2. f. 36. 



') T. orbiculalo-dcpiessa , sublus convexiuscula , leiiuissiina, pellucida 

 u,iabernma , nilida, laclea (colore efflalo); anfr. 6 plaiiulatis , fcrc aequaiibus; 

 spira vix exserla; suUiris tenuibus, loco umbiiici inipressio infundibuliforniis: 

 apcrtura compresso-lunala ad umbilicum angusliorc ; perist. simplici. — Diam. 

 I '/2 , all. '/g''- — Forma cl constructionc sua superna Pianorbcni conlorluni 

 bene commemorat, altamen spira ejus paululum exserla. Sublus siculi 11. ful\a 

 condila, praeler aperluram ad umbilicum anguslalam et fere aculam. — llabilai 

 in rci^ionibus caucasicis. ( Krvn. i c. ) 



