680 GEOLOGICAL SURVEY OF NEW JERSEY. 



" This, the northern and Susquehanna species, is very seldom 

 met with in the Delaware River, or elsewhere within State limits. 

 It is represented by the next, which may be distinguished there- 

 from by its much smaller scales. The largest specimens are 

 found in the rivers and large creeks, as the Rancocas. The 

 young generally remain in the smaller, clear- water, rapid rivulets, 

 where they are met with during the spring and summer in 

 abundance." 



S. bullaris, Raf. (rhotheus, pulcliellus, argenteus.) Rose-colored Chub. 

 Fallfish. Silver Chub. Dace. Roach. 



Dorsal nearly above ventrals ; scales nearly alike over body ; 

 no black dorsal spot ; twenty-two scales in front of dorsal ; steel 

 blue above ; sides and belly silvery ; in spring males rosy below ; 

 largest of our eastern Cyprinldce. 



"This very common species was long confounded with the 

 northern species, and was first properly named by Prof. Cope. 

 It is the Delaware representative of the corporalis of the Sus- 

 quehanna, and the pulchellus of the North. It is, when large, 

 a river- frequenting species, but spawns generally in small brooks, 

 where the young remain until five or seven inches long. It is 

 subject to many variations of color, which is dark or light, 

 according to the character of the water in which they are found. 



" Dr. Mitchill described a chub as the atromaeulatus, which is 

 generally now considered to be the young of this species. 



" The largest chub that the writer has succeeded in procuring 

 weighed three pounds; and this is probably the maximum 

 growth of the species. 



"As an article of food they are not much prized, and are sought 

 for only by boys, to whom they afford quite good sport by their 

 readiness to take a hook, if well baited. 



" In the river they seem to prefer rocky bottoms and swift 

 water, and in the autumn they follow the schools of perch, as 

 though they sought food that these fish left after them. 



"The Lepidosteus, or 'Gar/ feeds principally upon the chub, 

 seizing it about the middle, and frequently cutting it entirely in 

 two, when it catches the two pieces and devours them." 

 [C. C. A.] 



