76 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



10. Notropis det.iciosus, Girard. (233.) 

 Rare in Piney River, Texas County. 



11. Notropis notatus, Girard. (258.) 



This species was very abundant in each of the following localities : 

 West Fork of Black River and Tom's Creek, Reynolds County; Jack's 

 Fork, Spring Valley Creek, Barren Creek, and Sinking Creek, Shannon 

 County; Piney River, Texas County. 



12. Notropis galacturus, Cope. (262.) 



This species occurred in sparing numbers in Jack's Fork, and in large 

 numbers in Spring Valley Creek, Shannon County. This is the most 

 westerly and southerly locality yet recorded for this species. Indeed, 

 I am not aware that it has hitherto been reported from west of the 

 Mississippi. Its bright steel-blue color, when moving rapidly about in 

 the midst of schools of minnows, makes it a conspicuous object in the 

 clear mountain streams which it inhabits. 



13. Notropis megalops, Rafinesque. (273.) 



This form occurred in every stream in which collections were made. 

 It is a singularly variable fish — some of its variations having received 

 sub-specific or varietal designations. It is described by Jordan and 

 Gilbert in "Synopsis," pp. 186-187, under the name of Minnilus 

 cornutus, Mitchell. 



14. Notropis zonatus, Agassiz. (275.) 

 Abundant in all streams examined on both slopes. 



15. Notropis scabriceps, Cope. (287.) 



West Fork of Black River and Barren Creek, Reynolds County; 

 Jack's Fork and Spring Valley Creek, Shannon County. This form 

 and the two following occurred rarely. Of the three, this is the most 

 generally distributed over the region explored. 



16. Notropis umbratilis, Girard. (297.) 



Spring Valley Creek, Shannon County. This is a little-known 

 species, and occurred to us only in this single locality. It was origin- 

 ally described from the Arkansas River. 



17. Notropis micropteryx, Cope. (311.) 



This form occurred rarely in Spring Valley Creek, Shannon County. 

 It is another of those mountain species now for the first time credited 

 to the region west of the Mississippi. It was described from the 

 "head-waters of the Cumberland and Tennessee Rivers." 



