72 VERTEBRATE ANIMALS OF THE UNITED STATES 



H. paroipinnis Snyder. Length 80 mm.; head and depth 3.9; scales 

 59; rays of dorsal fin 8; anal 7: Gualala River basin, California. 



30. Opsopoeodus Hay. Mouth very small, terminal; teeth 5-5 or 

 4-5. strongly hooked; upper jaw protractile; size srtiall: 2 species. 



O. emili(B Hay. Length 55 mm.; head 4.5; depth 4.4; color yellow- 

 ish; sides silvery, with usually a dark lateral band; a black spot on 

 dorsal fin ; rays of dorsal fin 9; anal 8; scales 6-40-4; mouth very oblique; 

 body elongate, compressed: Lake Erie to Georgia and Texas; common 

 towards the south in sandy lowland streams. 



31. Opsopoea Jordan and Evermann. Similar to Opsopoeodus, 

 but with mouth subinferior and nearly horizontal: i species. 



^^ 





Fig. 34. — Nolemigonus crysoleiicas {from Jordan <s' Evermann). 



O. bollmani (Gilbert). Length 50 mm.; head 4.4; depth 4.6; color 

 dark olive, with a black lateral band and a large spot at the base of the 

 tail; rays of the dorsal and anal fins 8; scales 5-37-4; mouth slightly 

 oblique; lateral line on but 7 or 8 scales: Georgia and Tennessee to 

 Kansas; scarce. 



32. Notemigonus Rafinesque. Breams. Body elliptical, strongly 

 compressed, the belly forming a keel behind the ventral fins which is 

 naked; teeth 5-5, hooked; no barbels; dorsal fin behind the ventrals: 

 Europe and America; 2 species in the United States. 



.Y. crysoleucas (Mitchill). Golden shiner (Fig. 34). Length 300 

 mm.; head 4.5; depth 3; color clear greenish above; sides silvery, with 

 golden reflections; fins yellowish; rays of dorsal fin 8; anal 11 to 14; 

 scales 10-46 to 55-3; mouth small, oblique; lateral line decurved: 

 Nova Scotia to Dakota, southward to Tennessee and Texas; very 

 common in weedly ponds and streams. 



