664 



ICHTHYOLOGY. 



HUorj. 

 System of 



CARTILAOINOUS 

 FISHES . . . 



OSSEOUS FISHES < 



Fixed Branchiae, Chondropterigii 



Free Branchiae, Branchiostegi 



Apodes . 

 Jugulares 



Thoracici 



Abdominales 



Round mouth at the end of the nose or snout. 

 Transverse mouth under the snout. 

 Transverse mouth under the snout; teeth. 



no teeth. 



HUtorjr. 



System f 

 Cuvier. 



Mouth at the end of the nose ; no teeth. 

 teeth. 



Several natural 

 tion of his work. 



The bones of the jaws answering instead of teeth. 



Mouth very wide ; a number of small teeth. 



Moutli at the end of the nose. 



Mouth under the nose. 



Head unarmed. 



Head armed. 



Dorsal fins partly spinous ; head armed. 



Dorsal fins partly spinous; head ("Two dorsal fins. 



unarmed "[One dorsal fin. 



Bones of the jaws naked, and answering instead of teeth. 



Two eyes on the same side. 



The body very long. 



A furrowed discus on the head. 



No operculum to the branchiae. 



No teeth. 



Sharp teeth ; no cirri. 



IHead depressed ; cirri. 

 Spines free on the back. 

 Mouth at the end of the nose. 



families are formed by this author, and we hope he will add to the number in the second edi- 



Oe la Ce- 

 pede. 



System of 

 De la Cc- 

 pcde. 



In the year 1803, De la Cepede completed his Hisloire 

 Naturelle des Poissons, in five volumes. The opportu- 

 nities of investigating the subject of ichthyology enjoy- 

 ed by this author were valuable, and he has availed him- 

 self of these with very great diligence and success. He 

 had access to the best furnished museum in Europe, 



formed from the spoils of the collections of those coun- 

 tries which France had subjugated. Before giving our 

 opinion of the execution of the systematic part of the 

 author's plan, we shall lay a sketch of it before our 

 readers. 



Le sang rouge, des vertebres, des branchies au lieu de poumons. 



SOUS-CLASSES. 



POISSONS CARTILAGINEAUX. 



1. L'epine dorsale composee de vertebres 

 cartilagineuses 



DIVISIONS. 



POISSONS OSSEUX. 



!. L'epine dorsale composee de vertebres 

 osseuses . 



1. 



2. 



3. 



I. 



5. 



6. 



7. 



8. 



1. Point d'opercule, ne de mem- J 2. 



brane branchiale 



5. 



2. Point d'opercule, une mem- J 6. 



brane branchiale 



7. 



3. Un opercule 



I p. 



;, point de mem- J 10. 

 mchiale 111. 



(12. 



f 13. 



brane branchiate 



4. Un opercule, et une membrane J 14. 



branchiale J 15. 



(.16. 



!17. 

 18. 

 19. 

 20. 



2. Un opercule, m 



brane branchiale 



3. Point d'opercule 

 brane branchiale 



4. Point d'opercule 

 brane branchiale 



(21. 



;, point de mem- J 22. 

 mchiale ) 23. 



^24. 



(25. 



j, une mem- \ 26. 

 iale 1 27. 



(.28. 



129- 

 30. 

 31. 

 32. 



ORDRES. 



1. Apodes. 



2. Jugulaires. 



3. Thoracins. 



4. Abdominaux. 



1. Apodes. 



2. Jugulaires. 



3. Thoracins. 



4. Abdominaux. 



1. Apodes. 



2. Jugulaires. 



3. Thoracins. 



4. Abdominaux. 



1. Apodes. 



2. Jugulaires. 



3. Thoracins. 



4. Abdominaux. 



1. Apodes. 



2. Jugulaires. 



3. Thoracins. 



4. Abdominaux. 

 1. Apodes. 



Jugulaires. 



3. Thoracins. 



4. Abdominaux. 



1. Apodes. 



2. Jugulaires. 

 Thoracins. 



4. Abdominaux. 



1. Apodes. 



2. Jugulaires. 



3. Thoracins. 



4. Abdominaux. 



System of 

 De la C e - 



