JOED AN ON FISHES OF DAKOTA AND MONTANA. 791 



tions from the original description. Wiinichthys dulcis Girard is appar- 

 ently a different fish, similar to and probably identical with BMnichthys 

 ohtusus Ag. {= BMnichthys limatus Cope). 



Genus CLIOLA Girard. 



9. — Oliola chloea Jordan, sp. nov. 



A small pale species, resembling a Notropis. Body slender, com- 

 pressed, resembling in form that of JS/'otropis riibrifrons Cope, the greatest 

 depth, at the beginning of the dorsal, contained about five times in the 

 length. Head rather small, 4^ in length, the eye rather large, longer 

 than snout, forming about one- third the length of the head, about equal 

 to the width of the interorbital space ; mouth small, quite oblique, the 

 lower jaw included when the mouth is closed, the maxillary scarcely 

 reaching to the front of the eye. 



Scales very large, 4-35-3, about 12 in front of the dorsal fin ; body 

 entirely scaly except the thoracic region ; lateral line decurved in front, 

 thence nearly straight. 



Dorsal fin beginning about midway of the body, directly over the ven- 

 trals, rather high, its rays, I, 7 ; anal fin short and high, I, l; pectorals 

 not reaching nearly to ventrals, the latter almost to vent. 



Teeth hooked, without masticatory surface, in one row, 4-4. 



Coloration quite pale; back greenish ; cheeks and sides with a silvery 

 band, belly white. No spots on the fins except sometimes a dusk;^ shade 

 at base of caudal ; no dusky or plumbeous shading on the body. 



Length of types about 2J inches each. There are twelve of these 

 typical examples, numbered 20193 in the United States National 

 Museum. 



The affinities of this small species seem to be rather with the Texan 

 species, G. vivax and G. velox, than with the other forms now referred to 

 this genus. 



Genus PEOTOPOEUS Cope. 



10. — Pkotoporus, sp. nov.? 



Mixed with the specimens of Glioia. chlora were several individuals 

 in poor condition, with the teeth 4-4, hooked, without grinding surface, 

 and the lateral line incomplete. If this latter character is permanent, 

 and a lateral line is uOt developed with age, the species is perhaps refer- 

 able to the genus Protoporus. The only species of that genus, P. domninus 

 Cope, has two rows of teeth (teeth 2, 4-4, 1), so that the present species, if 



