IV. APODAL MAhACOPTERYGl AlSiS— (continued). 



Alabes, 224 

 Sacchopharynx, 224 

 Gymnotus, 224 



Gynmotus, 224 



Carapus, 225 



Sternarclius, 226 

 Gymnarchus, 226 

 Leptocephalus, 226 

 Ophidium, 226 



Ophidium, 226 



Fierasfer, 227 

 Ammodytes, 227 



V. LOPHOBRANCHIATE FISHES, 228 



Syngnathus, 228 



Sygnathus, 229 



Hippocampus, 229 

 Solenostomus, 229 

 Pegasus, 230 



VI. PLECTOGNATHES, 230 



Fam. I. GvMNonONTE.s, 231 



Diodon, 232 

 Tetraodon, 232 

 Cephalus, 233 

 Triijdon, 234 



Fam. II. SCLERODERMES, 234 



Bal stes, 234 



Balistes, 234 



Monscauthus, 235 



Aluteres, 236 



Triacanthus, 236 

 Ostracion, 23/ 



SECOND SERIES. 



CHONDROPTERYGIAN.^, OR CARTILAGINOU.S PISHES. 



I. STURIONES, CHONDROPTERYGIANS WITH FIXED 

 GILLS, 238 



Accipenser. 238 

 Polyodon, 2-}0 

 Chimcera, 240 



Chimcera, 2-10 



Callorhvnciis, 241 



