CYPRINIDJS. cvin. 279 



anteriorly; young with a dark caudal spot; head 4 

 in length; depth nearly the same; D. I, 8; A. I, 7; lat. 

 1. 40 to 45; L. 6 to 9. Penn. to Utah and S.; abundant 

 almost everywhere; the most widely diffused of all our 

 fresh water fishes. \C. biyuttatus, (Kirt.) Bd., C. stig- 

 maticus, cyclotiS) etc., Cope.] 

 ff Lateral line about 60. 



2. C. plumbeus, (Ag.) Gthr. LEAD -COLORED CHUB. 

 Depth = length of head, 4 to 5 in body; mouth small; 

 dusky; size large; D. I, 8; A. I, 7; lat. 1. 60. L. 

 Superior. (C. prosthemius, Cope.) 



** Mouth small, inferior upper jaw notably longest; barbels 

 rather long; small, silvery species, resembling Hybopsis. 

 (Erijiemus, Jordan.) 

 \ Lateral line 30 to 42. 



3. C. hyalinus, Cope. BIG -EYED MINNOW. Oliva- 

 ceous or bluish, sides clear silvery; eyes very large, 3 in 

 head; depth 5 in length; head rather large, 4; D. I, 9; 

 A. I, 8; lat. 1. 40; L. 3. Ohio Valley, abundant; the 

 smallest species, resembling Photogenis arriommus, but 

 with a very different mouth. 



Var. labrosus, (Cope) Jordan. LARGE- LIPPED MIN- 

 NOW. Similar, but with the scales larger, the body 

 slimmer, and the barbels and lips more developed; D. I, 

 8; A. I, 8; lat. 1. 34. Rivers of N. C. and Tenn. 



\\ Lateral line 45 to 50 ; long, slender species, with the snout 

 projecting. 



4. C. dissimilis, (Kirt.) Cope. SPOTTED SHINER. Pale 

 olivaceous, sides bright silvery, with a bluish lateral 

 band, widened at intervals into spots; fins immaculate; 

 depth 5 in length; head 4; eye large, 3 in head; D. I, 8; 

 A. I, 7; lat. 1. 47 to 50; L. 6. Ohio Valley and Lake 

 region, not uncommon. 



