CONTENTS
Frank B. Cross
PAGE
Introduction
325
Methods, Materials, and Acknowledgments
326
Description of the Species Hybopsis gracilis
327
Hybopsis gracilis gracilis
328
Hybopsis gracilis gulonella
330
Intraspecific Variation
333
Natural History
334
Habitat
334
Associated Species
336
Food
338
Spawning Season
338
Discussion
340
Literature Cited
343
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