New Names Introduced by H.A. Pilsbry in the Mollusca and Crustacea: Special Publication 4 of the Academy of Natural Sciences of Philaladelphia
Clench, William J. And Turner, Ruth D.
The corners are bumped and the is an ownership signature on the front end paper, else a very good copy with no real blemishes but obviously second hand.
Published 1962 Academy of Natural Sciences Philadelphia
