Produced by Simon Gardner, Chris Curnow, Joseph Cooper and the Online Distributed Proofreading Team at https://www.pgdp.net Transcriber's Notes In this Plain Text version of the book, italic typeface is represented with _underscores_, and small capital typeface is represented in UPPER case. [=e] represents a macron (horizontal line) over an e. [Female] represents the symbol for female. [Male] represents the symbol for male. A small number of inconsistencies and typographical errors have been changed in the text. These are listed at the end of this book. The Title page and Verso are in error in stating that the pages run 275 to 306. This should read 276-307. * * * * * UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY Volume 8, No. 4, pp. 275-306, 9 figs. in text February 10, 1956 A Field Study of the Kansas Ant-Eating Frog, Gastrophryne olivacea BY HENRY S. FITCH UNIVERSITY OF KANSAS LAWRENCE 1956 UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY Editors: E. Raymond Hall, Chairman, A. Byron Leonard, Robert W. Wilson Volume 8, No. 4, pp. 275-306, 9 figs. in text Published February 10, 1956 UNIVERSITY OF KANSAS Lawrence, Kansas PRINTED BY FERD VOILAND. JR., STATE PRINTER TOPEKA, KANSAS 1956 25-7819 A FIELD STUDY OF THE KANSAS ANT-EATING FROG, GASTROPHRYNE OLIVACEA By Henry S. Fitch INTRODUCTION The ant-eating frog is one of the smallest species of vertebrates on the University of Kansas Natural History Reservation, but individually it is one of the most numerous. The species is important in the over-all ecology; its biomass often exceeds that of larger species of vertebrates. Because of secretive and subterranean habits, however, its abundance and effects on community associates are largely obscured.