CONTENTS	page
Foreword and Acknowledgments	6
Introduction	7
Eartheaters in history	8
The natural habitat	20
The aquarium	30
Proper maintenance	43
Breeding behaviour	55
The genera	67
The species	71
Biotodoma Eigenmann & Kennedy, 1903	73
Geophagus Heckel, 1840	86
‘Geophagus‘ crassilabris Complex	171
‘Geophagus‘ brasiliensis Complex	191
Satanoperca Günther, 1862	206
Gymnogeophagus de Miranda-Ribeiro, 1918	248
Retroculus Eigenmann & Bray, 1894	281
Acarichthys Eigenmann, 1912	297
Guianacara Kullander & Nijssen, 1989	303
Glossary	326
References	328
Index	334