THE FISHES OF NEAV JERSEY. 435 



Maxillary reaching slightly behind orbit, its width nearly J4 its 

 length. Mandible slightly projecting. Origin of dorsal nearer 

 tip of snout than base of caudal, base of fin 2 in head, longest ray 

 equals pectoral or nearly i^ in head, and last ray 3 in head. 

 Adipose fin over last 2 or 3 anal rays, and its length about equal 

 to diameter of iris. Anal base 2^^ in head, and last ray J4 of 

 longest, which is 2 in head. Caudal deeply forked, middle rays 

 less than ^ length of outer, which are equal tO' head without 

 snout. Pectoral reaching almost below origin of dorsal, ij4 in 

 head. Ventral inserted below fifth or sixth branched dorsal ray 

 and equal to postorbital part of head. Scaly ventral flap not quite 

 3 in head. Color with about 10 oblong parr marks on side and a 

 few narrow dark blotches simulating half bands on back from 

 near nape to a point behind dorsal. Numerous pale spots along 

 middle of sides, each probably with a vermilion spot during life. 

 Length 9^ inches. Siterling Eake. (Bean.) 



This fish has been introduced from Europe. It is an inhabitant 

 of north-eastern America and is found in cold lakes and mountain 

 streams. It may be distinguished from our brook trout by not 

 having the back marbled with darker, and unspotted, the red 

 spots confined to the side. 



Salvelinus alpinms Bean, 7th An. Rep. F. Fish and Game Com., 

 N. Y., 1901, p. 347. 



Family ESOCID^. 



The Pikes. 



Genus Esox Linnaeus. 



The Pikes. 



Esox masquinongy (Mitchill). 



Muskallunge. 



Distinguished easily from our other species by naked cheeks and 

 lower half of opercles. 



Largest of the pikes, reaching a length of 8 feet and a weight 

 of 100 pounds or more. It is a native of the Great Lake and 



