FISHES OF THE CONNECTICUT LAKES. 21 



jj. Pectorals reaching nearly to ventrals. 



I. Scales on side deeper than long Redfin. 



U. Scales on side not deeper than long__CHUB Minnow. 

 6b. Ventrals wanting; body very elongated and vertical fins meeting around 



the tail Eel. 



aa. Two flus on bacli. 



m. Smaller fin posterior to the larger one and without 

 rays or spines (adipose), 

 n. Mouth large, provided with strong sharp teeth 

 on jaws and tongue. 

 0. Anal fin with more than 12 rays (14 to 17^. 



Chinook Salmon. 

 00. Anal with not more than 12 rays (9 to 12). 

 p. Body spotted. 



q. Body with dark colored or black spots; 

 with or without red spots. 

 r. Pectorals and ventrals without white 

 outer rays ; no red spots on side in 

 adult ; in young red spots when pres- 

 ent not surrounded by another color 

 (not ocellate). 

 s. No dark spots on tail ; no broad rosy 

 or reddish stripe along side ; spots 

 on tail, when present, yellowish or 



orange Landlocked Salmon. 



ss. Dark spots on tail ; usually a broad 



rosy or crimson stripe along side. 



Rainbow Trout. 



rr. Pectorals and ventrals with outer rays 



white ; sides usually with red spots. 



t. Back without wavy markings (rivu- 



lations or vermiculations) but 



spotted with rather large dark 



colored spots Brown Trout. 



tt. Back not spotted, but with rivula- 



tion or vermiculations Trout. 



qq. Body with light-colored spots, no red 



spots Lake Trout. 



pp. Body not spotted, but plain dusky, oliva- 

 ceous, greenish or silvery Smelt. 



nn. Mouth small, with no teeth in jaws or tongue, 

 except sometimes fine bristle-like teeth 

 (asperities). 



u. Body spindle-shape (fusiform) 

 not compressed ; snout com- 

 pressed and pointed,, not blunt 

 and flattened at the end (not 

 truncate) ; ventral sometimes 



reddish Round Whitefish. 



uu. Body somewhat compressed and 

 deep ; snout not compressed 

 and sharp, but truncate; ven- 

 trals never reddish. 



Whitefish. 



