Transcriber's Notes Emphasis denoted as _Italics_. [M] and [F] represents the male and female symbols respectively. Whole and fractional parts of numbers are represented as 41-3/4. =================================================== University of Kansas Publications Museum of Natural History ---------------- Volume 15, No. 8, pp. 351-468, pls. 19-22, 20 figs. ----------------- December 30, 1963 ---------------- Natural History of the Racer Coluber constrictor BY HENRY S. FITCH University of Kansas Lawrence 1963 University of Kansas Publications, Museum of Natural History Editors: E. Raymond Hall, Chairman, Henry S. Fitch, Theodore H. Eaton, Jr. Volume 15, No. 8, pp. 351-468, pls. 19-22, 20 figs. Published December 30, 1963 University of Kansas Lawrence, Kansas PRINTED BY JEAN M. NEIBARGER, STATE PRINTER TOPEKA, KANSAS 1963 [Illustration] 29-7864 Natural History of the Racer Coluber constrictor BY HENRY S. FITCH CONTENTS PAGE Introduction 355 Acknowledgments 357 Methods and Materials 358 Description 362 Color pattern 362 Bodily proportions 365 Lepidosis 367 Dentition 369 Hemipenis 369 Relationships 370 Range 371 Geographic Variation 373 Habitat 375 Temperature Relationships 377 Home Range and Movements 385 Food Habits 394 Methods of obtaining prey 394 Composition of food 395 Kinds of prey 403 Reproduction 408 Sexual behavior 408 Cycle of the male 414 Eggs 416 Hatching 423 Growth 425