TY - JOUR A1 - Lea, I. JO - Transactions of the American Philosophical Society C1 - (NS) 8(2): 163-250 (+ 1 page contents, 1 page corrigenda), plates 5-27 [16 December; also issued separately as volume III of "Observations on the genus Unio"] TI - Description of new fresh water and land shells UR - http://biodiversitylibrary.org/page/35957426 PY - 1842 Y2 - 2024-03-29 ER -