. 28 C- A. Westerlund, 



** 2'esta sutura profunda, immarginata. 



6. ZONITES PURA (Ålder). 



Testa nmbilicata, dcpressa, cinereo-alba, vix iiiticlula, confertim sed 

 subtilissirae transversim striata, sub lente etiara striis spiralibus parallclis 

 ornata; spira coiivexa; anfr. 4, celeriter accresceiites, ultimus dcpressiis; 

 vmhilicus plus minus effusus; apertura lunato-rotundata. Animal albidura, 

 lineis duabus colli superne nigris. Testa animale fœta anfractibus 3 primis 

 obscure fulvis. Diam. 3 — 4, alt. 2 mm. 



Hdix pura Ålder Cat. Nortlnimb. Moll. (1830) p. 12. Pfeiffer Monoo-r. Helic. I (1848) 

 p. 96 pr. p.; IV (1859) p. 83 pr. p.; V (1868) p. 147. Westerlmid Sv. Moll. 

 (1865) p. 40. 



Helix viridula Menke pr. p.; Helix clara Held in Isis; Polita opnca Held. 1. e. 



Zoîiites purus Moq.-ïandon Moll. Fr. II (1865) p. 87 t. 9. f. 22—25 (exclus. Féruss., 

 Ikck et ?Ield). Jeffreys Brit. Ooneh. I (1862) p. 164. 



Hyalinia pura Mörch Syn. Moll. Dan. (1864) p. 13. 



Hijalina pura Westerlund Coli. Typ. Moll. So. (1868) N;o 23. 



Hah. In SuGCia, prov. Skåne: in silva Refteu prope Lund et iu 

 monte Skäralid (C. A. W.); prov. Blekinge: circa Ronneby multis locis, 

 ad Sjuhalla et prope Carlsbamn ad Bellcvüe (C. A. W.), uec non ad Carls- 

 krona (J. Ankarcr.ü); prov. Småland: ad Rosenlund prope Jönköping (O. 

 NoRDSTEDTÜ); prov. Eobuslän: ad Bro (G. Eisen!!); prov. Östergötland: 

 in monte Omberg (C. A. W.); prov. Wester go t land: in monte Mösseberg- 

 (O. Nordstedi et ipse); prov. Nerike: in monte Willingkullen et ad Hjel- 

 marsberg (Hartman); prov. Dalarne: ad Sätlier (C. G. Andersson!!). In 

 Norvegia ad Bergen formam subcostulato-striatam invenit celeberr. prof. 

 Lilljeborg. 



Subgen. Vitrea FiTZ. Testa subpcrforata (interdum imperforata), de- 

 pvessa, vitrea, diapbaua, nitidissima, arctispira; anfr. 4 — 

 6, angusti; apertura limaris. 



7. ZONITES CEYSTALLINA (Müll.). 



Testa perforata, depressa, tenuissima, hyalina, nitidissima, Candida; 

 anfr. planiusculi; apertiira semilunaris, subdepressa, duplo latior quam älta; 

 peristoma rectum, simplex. Diam. 3, alt. 1~ mm. 



Helix crystallina Müller Verm. Hist. II (1774) p. 23. Nilsson Hist. Moll. Su. (1822) 



p. 35. Rossmässler Icon. VIII (1838) p. 37. f. 531. Pfeiffer Monogr. Helic. I 



(1848) p. 59. Friele Norske Moll. (1853) p. 18. Westerlund Sv. Moll. (1865) 

 p. 41. 



