156 HELIX §. 42. 



breviter conoideo-coiwexa, apice obtusala; sutura impressa; 

 anfr. 6V2 convexiusculi, ultimus multo latior, peripheria ob- 

 solete angulatus, antice non descendens, basi planus, circa 

 umbilicum subcompressus, utrinque medio impresso-sulcatus; 

 apertura parva, pnrum obliqua, subiriangulato-lunaris; perist. 

 subsimplex, marginibus vix convergentibus, dextro recto, de- 

 clivi, basali levitcr arcuato, subincrassato. — Diam. maj. 29, 

 min. 25, alt. 13 mill. (Mus. Cuming.) 



Helix hisiikata Pfr. in Proc. Zool. Soc. 18 52. 



— — Chemn. ed. U. Helix N. 1096. t. 161. f. 3 — 5. 



Habitat in Tasmania. 



Obs. Specimen descriptum intiis serie nodorum callosorum, sulco 

 basali respondenliura, munitum est; an signum cliaracteristicum? An 

 potius casu? 



827. H. Greenwoodii Gray. 



T. umbilicata, convexo-depressa, tenuiuscula, ubique con- 

 fertissime ruguloso-granulata, parum nitida, olivaceo-fusca; 

 spira parvula , convexa, obtusiuscula; sutura imprcssa; anfr. 

 4 convexiusculi, rapide accrescentes, ultimus magnus, peri- 

 pheria cingulis pluribus elevatis obtusis, retrorsum descenden- 

 tibus munitus, antice descendens, basi parum convexus, ad 

 introitum umbilici infundibuliformis, castanei subcompressus; 

 apertura perobliqua. oblongo-ovalis, intus nitida, albida; perist. 

 simplex, marginibus conniventibus, snpero recto, repando, in- 

 fero subincrassato, ad columellam dilatato, reflexo. — Diam. 

 maj. 231/2, min. 19, alt. 12 mill. (Coll. Nr. 419.) 



Helix Greenwoodii Gray in Proc. Zool. Soc. 1849. p. 165. 



— — C/ie7/in. ed. II. HelixN. 673a. t. 107.ri1— 13. 



— Gunnii Gray mss. olim. (teste Cuming.) 



— — Pfr. in Zeitschr. f. Malak. 1850. p. 86. 

 Habitat Auckland Novae Seelandiae (Greenwood). 



828. Sinclairi Pfr Mon. 1. p. 200. 



829. Beckiana Pfr. (Coll. 4-20. — Reeve N. U5. t. 



33. — Discus Alb. p. 1i7.) - - - 201. 



830. planorboides Raf. (Coll. 421. — Desh. in Fer. 



liist. I. p. 87. N. 117. — Chemn. ed. II. t. 154. 

 f. 45. _ Patula Alb. p. 64. — //. concava De 

 Kay New-Yurlc Moli. p. 33. t. 2. f. 1 5.) . . . . - - - 200. 



831. coactiliataFer. (Coll. 422. — PatLila J/&. p. 65.) - --200. 



832. suturalis Pfr. (Coll. 423. — Paiula Alb. p. 65.) - - - 201. 



833. H. pressula Morelet. 4* 



T. aperte umbilicata, subdiscoidea, depressa, tenuis, mi- 

 nute granulosa, cornea, ti'ansluccns, spadiceo-unifasciata; anfr. 



