ARRANGEMENT. 457 



Division. Page. 



( Caudal fin forked 7 



'( Caudal fin not forked 8 



t Under jaw longest Atnmodytes. 399 



I Under jaw shortest Xiphias. 215 



( Teeth very strong and prominent A narrhicJias. 230 



( Teeth wanting Syngnathus. 394 



( One dorsal fin 10 



9. < 



1 More than one dorsal fin* 34 



( Both eves on the same side of the head 11 



10. ] 



I One eye on each side of the head 14 



! Caudal fin rounded at the extremity 12 



Caudal fin crescent-shaped at the extremity.... Hippoglossus. 372 



l Eyes on the right side of the head 13 



( Eyes on the left side of the head Rhombus. 373 



( Dorsal and caudal fins separate Platessa. 361 



I Dorsal fin reaching quite to the caudal Solea. 378 



14 



c Dorsal fin commencing before or over pectorals. 15 

 I Dorsal fin commencing remote from pectorals. 25 



( Caudal fin forked 16 



' (Caudal fin not forked 18 



( Teeth present 17 



X Teeth wanting Lampris. 223 



»•{ 



t Anterior part of the dorsal fin with out scales... Pagellus. 203 



Anterior part of the dorsal covered with scales.. Brama. 209 



18 .j 



( Chin with a long barbule Brosmius. 357 



Chin without a barbule 19 



( Anal and caudal fins not contiguous 20 



I Anal and caudal fins contiguous 24 



" The first dorsal fin is sometimes very small and composed of fine rays 

 which make it liable to be overlooked, as in the Tadpole Fish (Raniceps), 

 Rockling (Motella), &c; the first dorsal fin in the Angler (Lophius), is ra- 

 ther inconspicuous; the Dory (Zeus) has but one dorsal fin which is deeply 

 abbreviated in the middle, appearing at first sight as if two fins ; the Stickle 

 back (Gasterosteus), I have here considered as having but one dorsal fin; 

 in the Salmonidae the second dorsal, or adipose fin, is without rays and itu- 

 ated over the posterior part of the anal fin. 



