74 VERTEBRATE ANIMALS OF THE UNITED STATES 



36, 14 before the dorsal lin; mouth very small: northern New York 

 to South Dakota; southward to Texas; not rare. 



H. heterodon (Cope). Length 60 mm.; head 4; depth 4; color oli- 

 vaceous; chin black; sides with a dusky band; scales 5-36-3, 13 before 

 the dorsal tin; snout pointed; body stout: western New York to Kansas 

 and Minnesota; common. 



H. hlennius (Girard). Length 60 mm.; head 4; depth 5; color 

 pale olivaceous, with sometimes a darker lateral stripe; scales 5-32 to 

 38-3, 15 before the dorsal fin; mouth small, horizontal; snout obtuse: 

 Great Lakes region to Dakota; southward to Tennessee and Texas; 

 abundant in small streams. 



H. deliciosus (Girard). Length 60 mm.; head 4; depth 5; teeth 4-4; 

 rays of anal 7 ; lateral line complete ; color pale olivaceous : basin of the 

 Great Lakes and the Mississippi; very common. 



H. procne (Cope). Length 60 mm.; head 4.75; depth 5.25; color 

 olivaceous, with a dark lateral band; scales 5-32 to 34-3, 13 before 

 the dorsal fin; rays of anal fin 7; body slender: Delaware River to the 

 Neuse, in coastal streams; very common. 



H. kanawha Jordan & Jenkins. Length 85 mm.; head 4.4; depth 

 4.6; color translucent green; sides silvery; rays of anal fin 9; scales 

 4-37-2, 16 before the dorsal: tributaries of the Kanawha River, Virginia. 



H. spectrunculus (Cope). Length 75 mm.; head 4; depth 5.5; 

 color pale olive; silvery white below; a dark band along the sides and 

 a conspicuous black spot at the base of the tail fin; rays of anal fin 9; 

 scales 37, 15 before the dorsal fin: head waters of the Tennessee River; 

 very common. 



H. topeka Gilbert. Length 90 mm.; head 4; depth 3.6; color oli- 

 vaceous, with a dusky lateral band ending in a small caudal spot; 

 males in spring and summer with sides and lower fins bright red; 

 scales 5-35-4, 14 before the dorsal fin: western Iowa and eastern South 

 Dakota to Kansas; common. 



H. dorsalis Agassiz. Length 60 mm.; head 4; depth 5; color light 

 olive with dusky streaks and specks; rays of anal fin 8; scales 5-35-4, 

 17 before the dorsal fin; body slender: Missouri and Nebraska to 

 Minnesota and New York; common in muddy streams. 



H. nocomis Evermann. Length 60 mm.; head 4.3; depth 5; color 

 yellowish, with dark specks and a dark lateral band; scales 6-36-3; 

 teeth I, 4-4, i; eyes large: Trinity, San Marco and Comal Rivers, 

 Texas; common. 



H. shumardi (Gir.). Length 75 mm.; head 3.75; depth 4.2; color 

 olivaceous with dusky streaks and dark specks; eyes very large; scales 



