HELIX §. 14. 29 



tlexo. — Diam. maj. 14, min. 13, alt. oy^ '^ii"- Apert. 5 longa, 

 7 lata. (Mus. Benson.) 



Helix pansa Bens. in Ann. and Mag. N. H. 2 d. ser. XVIM. p. 2S2. 



— — Pfr. Novit. conch. I. n. 226. t. 36. f. 1t — 13. 



Habitat Akrouktong prope ripas Irawadi fluminis Birmanorum 

 (W. Theobald). 



177. H. cumulus Pfr. 



T. perforata, turbinato-semiglobosa, tenuis, levissime stria- 

 tula, nitida, fulvo-cornea; spira convexo-conoidea , vertice sub- 

 lili vix prominulo; sutura Jevis, submarginata; anfr. Sy^ vix 

 convexiusculi, iente accrescentes, ultimus non descendens, peri- 

 pheria subanguiatus, basi parum convexus; apertura diagonalis, 

 iunaris; perist. simplex, rectum, marginibus distantibus, colu- 

 mellari leviter arcuato, superne subdilatalo-reflexo. — Diam. 

 maj. 10, min. 9, alt. 5 mill. (Mus. Cuming.) 



Helix cumulus Pfr. in Proc. Zool. Soc. 1854. p. t45. 



— — Reeve Conch. ic. n. 136 8. t. 195. 



— — (Trochomorpha) Pfr. Vers. p. 182. 

 p. Major; diam. maj. 17, min. 15, alt. 8^/3 mill. 



Habitat «Manning-River» Australiae orientalis; var. ^ in insulis 

 Admiralitalis. 



178. H. Yorkensis Pfr. 



T. subobtecte perforata, turbinalo-depressa, tenuis, capil- 

 laceo-striata , sericea , rubello-cornea ; spira convexiusculo- 

 conoidea, vertice subtili; sutura Jevis, simplex; anfr. 5 con- 

 vexiusculi, sensim accrescentes, ultimus non descendens, peri- 

 pheria subangulatus, basi nitidior, medio impressus; apertura 

 diagonalis, rotundalo-Iunaris, intus rubello-margaritacea; perist. 

 simplex, rectum, marginibus subconniventibus, columellari supra 

 perforationem calloso, dilatato. — Diam. maj. 10, min. Sy^, alt 

 5 mill. (Mus. Cuming.) 



Helix Yorkensis Pfr. in Proc. Zool. Soc. 1854. p. 145. 



— — Reeve Conch. ic. n. 1372. t. 195. 



— — (Trochomorpha) Pfr. Vers. p. 132. 

 Habitat «Cape York» Australiae septentrionalis. 



179 H. Ophelia Pfr. 



T. perforata, turbinato-depressa , tenuis, sub lente irre- 

 gulariter capillaceo-striata, haud nitida, diaphana, cornea, stri- 

 gis angustis rufulis notata; spira convexiusculo-conoidea, ver- 

 tice subtiii, acutiusculo; anfr. 5 planiusculi, subexserti, sensim 

 accrescentes, ultimus non de.scendens, subangulatus, basi pla- 



