172 HELIX §. 31. 



442. H. filimargo Ziegler. 



T. perspective umbilicala , depressa , supra planiuscula , cal- 

 carea (raro fasciata), filocincta , substriata; anfr. 5 convexiusculi ; 

 apertura rotundata; perist. rectum, acutum, intus remote subla- 

 biatum, marginibus subapproximatis. — Diam. maj. 14, rain. 12, 

 alt. 6 mill. (Coll. Nr. 253.) 



Helix filimargo Zgl. Mus. Hossm. VI. p. 33. f. 358. 



— — Kryn. Bull. Mosc. VI. p. 435. IX. p. 188. 



— taurica Partsch Mus. Caes. Vindob. ./.9'/^. 

 Carocolla filimargo Menke syn. ed. 2. p. 2 4. 



Anomalia chersonesica Milhlf. (teste Rossm.) 

 Leucochroa filimargo Beck ind. p. 1 6. 

 Xerophila filimargo Held in Isis 1837. p. 913. 

 Habitat in Tauria. 



443. H. depressula Parreyss. ''C'a^^' 



T. umbilicata , lenticularis , rugoso-striata, lutescenti-albida, 

 compresso-carinata ; anfr. 6 prominuli, subplanulati, ultimus basi 

 convexus, antice vix descendens; umbilicus latus, perspectivus ; 

 apertura securiformis; perist. rectum, angulatum, intus labiatum, 

 raareinibus conniventibus. — Diara. raaj. 20 '/2, min. ISyo, alt. 

 9 mill. (Coll. Nr. 254.) 



Helix depressula Parr. in sched. Rossm. IX. p. 6. f. 562. 



Carocolla depressula Villa disp. p. 19. 

 Habitat in Algeria , prope Oran. 



444. H. esplanata Miiller. 



T. urabilicata, depressa, planospira, albida, subtiliter striata; 

 anfr. 5 sub carina compressa inflati, ultimus ad aperturam vix 

 deflexus ; apertura securiformis ; perist. rectum , acutum , intus 

 albo-Iabiatum. — Diam. maj. 17, min. I4V2, alt. 6 mill. (Coll. 

 Nr. 255.) 



Helix explanata Miill. verm. II. p. 26. N. 228. 



— — Rossm. Tm. p. 40. f. 539. 



— — Chemn. ed. II. Helix N. H9. t. 20. f. 3. 4. 



— planorbis marginatus Chemn. IX. P. 2. p. 8 4- t. 126. f H02. 



— — /J Gmel. 20. 



— albella Drap. p. 113. t. 6. f. 25 — 27. 



— — Tem p. 27. t. 3. f. 10 — 16. 

 CarocoUa albella Lam. 17. p. 100. ed. Dh. p. 149. 



— explanata Villa disp. p. 19. 



Leucochroa albella Beck ind. p. 1 6. 

 j3. Minor , fulvescens, apice nigra, anfr. 4/2-' diam. raaj. 12. niin. 10 '/2, 



alt. 4 '/2 mill. (Spec. ) 

 Habitat in Gallia meridionali et in Algeria. 



