TABLE OF CONTENTS 



An asterisk signifies that the group is extinct. 



PAGE 



THE CHORDATA . . . . 1 

 PHYLUM CEPHALOCHORDA . 10 



PHYLUM VERTEBRA! A . . 45 



Class I. PISCES .... 51 



Sub-class 1. MARSIPOBRANCHII 95 



., 2. ELASMOBKANCHII 118 



. Order I. Pleuropterygii* . 145 

 2. Aeanthodii* . . 146 

 3. lehthyotomi* . . 147 



4. Selaehii (Plagio- 



stomi) . . .148 



Sub-order 1. Notidani . . 149 



2. Squali . . 150 



3. Raji . . .153 

 Order 5. Holoeephali . . 155 



Sub-class 3. GANOIDEI . .159 



Order 1. Chondrostei . .167 



Order 2. Crossopterygii . .171 



Sub-order 1. Osteolepida* . 175 



2. Cladistia . .176 



Order 3. Lepidostei . . .176 



4. Amioidei . 180 



Sub-class 4. TELEOSTEI 



183 



Sub-order 1. Malacopterygii 

 ( Salmonidupei- 

 formes) . .213 



2. Ostariophysi 

 (Cyprinisiluri- 

 formes] . .216 



Sub-class TEIEOSTEI contd. PAGE 

 Sub-order 3. Symbranchii 

 (Symbranchi- 

 formes) . . 222 



,, 4. Apodes (An- 



guilllformes} 223 



5. Haplomi 



(Esociformes) 225 



6. Heteromi(Der- 



cetifwmes) . 227 



7. Cateostomi 

 (Gastrostei- 



formes] . . 228 



Tribe A. Selenichthyes . . 228 



B. Hemibranchii . . 228 



C. Lophobranchii . . 229 



D. Hypostomides . . 230 

 Sub-order 8. Percesoces 



(Mugiliformes] 230 



9. Anacantliini 



(Gadiformes) 232 



10. Acanthoptery- 



gii . . .233 



Tribe A. Perciformes . . 233 



B. Scombriformes . . 238 



C. Zeorhombi . . 239 



D. Kurtiformes . . 240 



E. Gobiiformes . .241 



F. Discocephali . . 241 



G. Scleroparei . . 241 

 H. Jugulares . . 243 



I. Taeniosomi . . 244 



Sub-order 11. Opisthomi . 245 



12. Pediculati 

 (Lopkii formes) 245 



13. Plcctognathi 

 (Bqlistiformcs) 246 



Tribe A. Sclerodermi . . 246 



[B. Gymnodontes . . 247 



