94 



CLASSIFICATION OF FISHES. 



Sub-orders : — 

 1, Myxine, Petromy- 

 zon, Syngnithus, 

 and Pegasus. 



Order VII.— Poissoxs Mammacx. 



3. ' 



' Morques," includ. 

 ing Cyclopterus, Ea- 

 listes, and the rest 

 of the branch ioste- 

 gous fishes. 



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. — PoissoNs PoissoNs. 



This order includes, among others, the genera- 



Murena. 

 Gyrnnotus. 

 Ophidium. 

 Ammodytes. 



Trichiurus. 



Leptocephalus. 



Cepola. 



G^Tiinotus. 



Anarrhicas. 

 Xiphias. 



Order II. — Poissojts Reptiles. 



Composed chiefly of the genera — 



Gadus. 

 Echineis. 



Gasterosteus. 

 Scomber. 

 Callionymus. 

 Uranoscopus. 



Cottus. 

 Gobi us. 



Cyclopterus, 

 Pieuronectes. 

 Zeus. 

 Chffitodon. 



Stomateus. 

 Cobites. 



Silurus. 



Salmo. 



Esox. 



Scorpsna. 

 Trigla. 

 Poly n emus. 

 Esoccetus. 

 Sciffina. 



Centriscus. 



Fiitularia. 



Stylephorus. 



Sygnathus. 



Mormyrus. 



Balistes. 



Order III. — Poissgns Oiseaux 



1 



Perca. 



Mullus. 



Labrus. 



Sparus. 



Coryphsna. 



MugiL 



Clupea. 



Atherina. 



Argentina. 



Order IV. — Poissoxs Mammaux. 



Tetraodon. 



Pegassus. 



Acipenser. 



Spatularia, 



Chimera. 



Lophius. 



Myxene. 



Petromyzon, 



Raia. 



Squalus. 



Finally_, our author, abandoning /owr as the regulat- 

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



