Binney on Terrestrial Mollusks. 19 



given above, and a fac-simile of his figure in the second 

 edition of Chemnitz is given on the plate referred to. 



HELIX AREOLATA Sowerby,. . . .vol. iii. p. 14, pi. Ixxvi. fig. 11; var. y. 



fig. 3. 



Helix areolaia Pfeiffer, 1. c. iii. 127. 



Chemnitz, 1. c. 1, 248, (1846). 

 Eeeve, Con. Icon. No. 664, (1852). 



The original figure of Pfeiffer is copied on the plate 



referred to from Chemnitz, edition 2. Two varieties are 



mentioned by him. 



"i3. Dente aperturae obsoleto. 



" y. Minor, globosa, dente aperturae valido." (fig. 3). 



HELIX VANCOUVERENSIS Lea, vol. ii. p. 166, p. xx. 



Helix Vancouverensis Teoschel, Ar. f. Nat. 1839, ii. 221. 

 Pfeiffer, 1. c. iii. 155. 

 Chemnitz, ed. 2, ii. 146, pi. xciv. f. 21-23. 

 Gould, U. S. Expl. Ex. p. 36, fig. 37. 

 Reeve, Con. Icon. No. 669 (1852). 

 Helix vellicata Forbes, Proc. Zoiil. Soc. London, Mar. 1850, p. 75, pi. ix. fig. 1. 

 Chemnitz, ed. 2, ii. 454, pi. cliv. fig. 42-44. 

 Eeeve, Con. Icon. No. 673, (1852). 

 Pfeiffer, Mon. Hel. Viv. iii. 155. 



From the description and figure of Forbes, as well as 

 from specimens received from Mr. Cuming's collection, 

 I am satisfied of the identity of H. vellicata with this 

 species. Forbes's description is given below. 



H. t. aperte umbilicata, tenui, convexo-depressS, subnitida, sulcato- 

 striata, striis minutissimis spiralibus decussata, Ifete viridibus; spira con- 

 vexiuscula, anfr. 6, ultimo rotundato, magno, antice dilatato, subdescen- 

 dente ; ap. perobliqua, lunato-oblonga ; faux alba, perist. margine subre- 

 flexo, supern^ deflexo-sinuato. Diam. max. 22, min. 18, alt. 8 mill. — 

 Panama ? 



Distinguished from its near allies by the peculiar deflection of the upper 

 portion of the lip margin. 



HELIX SPORTELLA Gould, vol. ii. p. 211, pi. xxii a. fig. 1. 



Helix sportella Gould, U. S. Expl. Ex. p. 37, fig. 42. 

 Pfeiffer, 1. c. iii. 104. 



The revolving striae appear to be wanting in some indi- 



