The jaw of Succinea avara (Say) was first figured by PILSBRY in his „Land Mollusca of North America”, Vol. II pt. 2, Philadelphia, 1948 p. 773 fig. 414 No. 6, but as far as I know the radula of the species has never been published. Mr. G. K. MACMILLAN kindly sent me some specimens of Succinea avara (Say) which he collected at several localities of Cape Breton, a small island North of Nova Scotia, Canada. They are listed in my collection under the following numbers: Nr. 5928. 1 specimen. Swamp area along Baddeck Bay Brook, Baddeck Bay, Victoria Co., Cape Breton. 18-8-1950. Nr. 5937. 4 specimens. Swamps along Whycocomagh Brook, Whycocomagh, Inverness Co., Cape Breton. 25—28-8-1950. Nr. 5970. 2 specimens. Town Reservoir, 1 mile Northwest of Baddeck, Victoria Co., Cape Breton. 19—21-8-1950.