TY - BOOK TI - Bulletin VL - no.196 (1949) UR - https://www.biodiversitylibrary.org/item/32690 PB - G.P.O CY - Washington PY - 1949 SN - 0362-9236 N1 - Many numbers issued in parts. --- Fifty-six, pt. 2 and 82, v. 2 never published. AU - United States National Museum KW - Science ER -