VI 



Sub-Order Haplomi (141-144) . 

 Sub-Order Isospondyli (145-173) 

 Sub-Order Eventognatbi (174-178) 

 Sub-Order Gymnonoti (179-1S0) 

 Order Scypbopbori (181-182) xxxviii 

 Order Nematognathi (183-192) xxxviii 

 Order Apodes (193-204) xxxviii 



Sub-Order Icbthyocepbali (193) . 

 Sub-Order Holostomi (194-195) . 

 Sub-Order Encbelycepbali (196-198) 

 Sub-Order Colocepbali (199) 

 Order Opistbomi (205-206) xxxix 

 Sub-Class Ganoidei (208-214) ix, xxii 



Super-Order Hyoganoidei (208-209) xxxi 

 Order Cycloganoidei (20S) 

 Order Rhomboganoidei (209) 

 Super-Order Choridroganoidei (210-211) xx 

 Order Cbondrostei (210-211) 

 Order Selachostomi (211) 

 Super-Order Bracbioganoidei (212) xxx 



Order Crossopterygia (212) 

 Super-Order Dipnoi (213-214) xxx . 

 'Order Sirenoidei (213-214) 

 Series and Sub-Class Elasmobrancbii (215-240) xx 

 Super-Order Cbimaerae (215) xx 



Order Holocepbali (215) 

 Super-Order Plagiostomi (216-240) xx 

 Order Raiae (216-223) 



Sub-Order Masticura (216-218) 



Sub-Order Pachyura (219-223) 



Order Squali (224-240) 



Sub-Order Rbinae (224) 

 Sub-Order Galei (225-240) 

 Class Marsipobrancbii (241-243) xix . 

 Order Hyperoartii (241) 

 Order Hyperotreti (242-243) 

 Class Leptocardii (244) xix .... 

 Order Cirrostomi (244) 



FADE 



14 

 15 



17 

 18 

 18 

 18 

 19 

 19 

 20 

 20 

 20 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 22 

 22 

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 22 

 22 

 22 

 22 

 22 

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 23 

 23 

 24 

 24 

 25 

 25 

 25 



III. Bibliography 



27 



IV. Index 



47 



