Fishes with two mouths. American Museum novitates ; no. 444

Gudger, E. W. (Eugene Willis), 1866-1956.2005-10-062005-10-061930http://hdl.handle.net/2246/439411 p. : ill. ; 23 cm.Includes bibliographical references (p. 6-7).2538722 bytesapplication/pdfen-USQL1 .A436 no.444, 1930Fishes -- Abnormalities.Mouth -- Abnormalities.Fishes with two mouths. American Museum novitates ; no. 444text