CLASSIFICATION. 



IX 



*H. FISHES. THREE GROUPS or DIVISIONS based upon the distinctive 



character of the fins, viz. 

 ACANTHOPTERTGII, (Spine-rayed fins.) 

 MALACOPTERYGII, (Soft-rayed fins.) 

 CHONDROPTERYGII, (Cartilage-fins. ) 

 bases the orders upon the scales and makes them four. 

 Ctenoids, (Comb-like.) 

 Cycloids, (Circle-like.) 

 Ganoids, (Splendor-like.) 

 Placoids, (Plate-like.) 





1st ORDER. 



ACANTHOPTERYGJI, 



(Spine-rayed,) 



or 

 CTENOIDS. 



Family Percidce, (Perch.) 



Triglidce, (Gurnards.) 



Scienidce, (Maigres, Sheep's-heads, Drum-fish, &c.) 



Sparidce, (Sea-Breams.) 



Chcetontidce, (Chaetodons, Moon-fish, Razor-fish.) 



Scombridce, (Mackerel.) 



Anabassidce. (Climbing-Perches.) 



TeuthidfK, (Surgeon-fish.) 



Atherinidce, (Silver-sides.) 



Mugilidce, (Mullets.) 



Gobida, (Gobias.) 



Lophida, (Crested or Toad-fish.) , 



Labridce, (Wrasses or Rock-fish.) 



Siluridce, (Cat-fish.) 

 Cyprinidce, (Carps.) 

 Esocida, (Pikes.) 

 Fistularidee, (Pipe-fis 

 Salmonidce, (Salmon.) 

 Clupeida, (Herring.) 

 Gadidce, (Codfish.) 

 Pleuronectidce, 



or Planidce, 



(Flat-fish.) 



Echeneidee, (Sucking-fish.) 

 Cydopteridce, (Lump-fish.) 

 j Apodes, without ) Murcenida or ) /-w e i g \ 

 \ ventral fins. j" Anguillidce, f ^ '' 

 ( Lophobranchia or } 

 j Lophobranchii, [ Syngnathida, (Sea-horse, &C.) 



) 



Gvmnodontidce, Balloon-fish.) 

 Balistid(g) (Fi i e . fish .) 



Ostracionida, (Trunk-fish.^) 



((Tufted-gills.) 



C Plectognathi, 

 ( (Plaited jaws) 



See Page 660. 



