The life history of the slenderhead darter, Percina phoxocephala, in the Embarras River, Illinois
By: Lawrence M. Page, Philip W. Smith.
Contributors: Smith, Philip W. 1921-; Illinois. Natural History Survey Division
Series: Biological notes -- no. 74
Publisher: State of Illinois, Dept. of Registration and Education, Natural History Survey Division
Published: 1971
Place of publication: Urbana, Ill
Language: eng
Number of pages: 14
Subjects: Percina; Darters (Fishes) -- Illinois -- Embarras River
Notes: Cover title.

"July 1971."

Bibliography: p. 14.