Simpson, George Gaylord, 1902-2005-10-062005-10-061938http://hdl.handle.net/2246/381815 p. : ill. ; 24 cm.Includes bibliographical references (p. 15).1472799 bytesapplication/pdfen-USQL1 .A436 no.978, 1938Monotremes -- Anatomy.Ear -- Anatomy.Skull -- Anatomy.Osteography of the ear region in monotremes. American Museum novitates ; no. 978Osteology of ear region in monotremestext