26 Remarks on Certain Species of 



VII. — liemarks on cer^tain species of North American 

 Helicidce. 



Bt Thomas Bland. 

 (Continued from vol. vi. p. S62.) 

 Read 20th December, 1858. 



Helix aurlculata, Say, 



Synonytvit. 



Polygyra auriculata Say Nich. Enc. Am. ed. 1816 



" Jl. Acad. N. S., Phila., I. p. 211. 1818 

 Helix " Fer. Prod., No. 98. 1822 



« " Binney Post. Jl. III., p. 384 (ex parte) 



PI. xix,, fig. 1. 1840 



« « De Kay N. Y. Moll., p. 47, pi. 3, fig. 28. 1843 



" « Pfr. Mon. Hel. I. No. 1084, excl. var. 1848 



« « CAm«.ed.n.llelixp.37l,t.65,fig.3,4. 



« " Desk, in Fer. Hist. p. 76 (excl. var.) 



pi. 50, fig. 4. 

 « « Binney Terr. Moll. II. p. 186 (ex parte), 



pi. xl., fig. 1 (left hand). 1851 



" «' Reeve Conch. Icon. No. 700. excl. fig. 1852 



Polygyra, " W. G. Binney, reprint of Say, p. 10. 1856 



Helix, " " Notes on Amer. Land 



Shells in Proc. Acad., Phila., p. 191. 1857 

 " " 200. 1858 



The following is a copy of Say's description : — 



Polygyra auriculata. — Shell beneath, convex ; whorls five, a little 

 rounded, crossed by numerous raised equidistant lines, forming grooves 

 between them ; spire very little raised ; lateral line (extending from 

 the outer whorl to the apex), not convex, but somewhat concave ; mouth 

 very unequal ; lips prominent above, appressed to the preceding whorl 



