94 



CLASSIFICATION OF FISHES. 



Order VII.— Poissoxs Mammaux. 



Sub-orders : — 

 Myxine, Petromy- 

 zon, Syngnathus, 

 and Pegasus. 



' jMorques," includ- 

 ing Cyclopterus, Ea- 

 listes, and the rest 

 of the branchioste- 

 gous fishes. 



3. " Chirques," as the 



genera Acipenser, 

 Ziphias, &c. 



4. Squalus, ;Raia, Chi- 



mera, and Lophius. 



But, as our author soon after discovered that there 

 "were not seven primary divisions in the animal king- 

 dom, he abandoned his second system^ and formed an- 

 other, in which the number four should predominate. 

 In his third arrangement, therefore_, M. Oken makes 

 four orders ; four sub-orders, supposed to represent the 

 orders ; and each of these sub-orders is again composed 

 of four genera. The result of all this will be sufficiently 

 seen in the following table: — 



Order I.— Poissoxs Poissoxs 

 This order includes, among others, the genera — 



Murena 



Gymnotus. 



Ophidium. 



Ammodytes 



Trichiurus. 



Leptocephalus. 



Cepola. 



Gymnotus. 



Anarrhicas. 



Xiphias. 



Order II. — Poissox9 Reptiles. 



Composed chiefly of the genera — 



Gadus 



Echineis. 



Gasterosteus. 



Scomber. 



Callionymus. 



Uranbscopus. 



Seorpaena. 



Trigla. 



Polynemus. 



Exoccetus. 



Sciama. 



Centriscus. 



Fistularia. 



Stylephorus. 



Sygnathus. 



Mormyrus. 



Balistes. 



Cottus. 



Gobius. 



Cyclopterus. 



Pleuronectes. 



Zeus. 



Chaetodon. 



Stomateus. 



Cobites. 



Silurus. 



Salmo. 



Esox. 



Order III. — Poissons Oiseaux. 



Perca. Mugil. 



Mullus. Clupea. 



Labrus. Atherina. 



Sparus. Argentina. 



Coryphama. 



Order IV.— Poissoxs Mammaux. 



Tetraodon. 



Pegassus. 



Acipenser. 



Spatularia, 



Chimera. 



Lophius. 

 Myxene. 

 Petromyzon. 

 Raia. 



Squalus. 



Finally, our author, abandoning four as the regulat- 

 ing number of his groups, adopts that of five, probably 



