Note 32 — Regular Meeting, March 18th, 1867.

Extreme specimens of H. arrosa found by Mr. Gabb in Mendocino County, Cal., its northern limit, and also one of H. redimita found in Alameda County by Mr. Holder, have exactly the form of H. pomatia, and in each case have one and a half whorls less than the types, indicating perhaps that the usual forms found here are higher developed than the type of the genus. (A genus Pomatia has also been founded on this type of the Linnæan genus Helix.)

Aglaia was used by Escholtz, 1825, in Acalephæ, by Swainson, 1827, in Birds, and by Renier Philinidæ, before Albers adopted it in this order!!