AN INDEX TO "A CLASSIFICATION OF THE AMERICAN OPERCULATE LAND MOLLUSKS OF THE FAMILY ANNULARIIDÆ". By JOHN B. HENDERSON and PAUL BARTSCH, Proc. U.S. Nat. Mus., 1920, vol. Iviii, p. 49
Published in Proceedings of the Malacological Society of London, in 1923, in volume 15, issue 4, pages 189-194
Date published:1923-03-01