1888.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 609 



A LIST OF FISHES FROM A SMALL TRIBUTARY OF THE POTEAU 

 RIVER, SCOTT COUNTY, ARKANSAS. 



BY CHARLES H. GILBERT. 



The following species were taken by the writer in July last, in a smalt 

 creek entering the Poteau River from the north, about 7 miles west of 

 Waldron, Scott County, Arkansas. Three of the ten species obtained 

 are additions to the list from the Poteau River published by Jordan 

 and Gilbert in the Proceedings for 1886, pp. G-10. 



1. Campostoma anomalum Raf. 



2. Pimephales notatus Raf. 



3. Notropis heterodon Cope. 



Very abundant. My specimens agree perfectly with others taken by 

 Professor Forbes in Illinois, and by Professor Meek in the vicinity of 

 Ithaca, New York. The snout is sharp, with terminal oblique mouth, 

 and with the tip of the mandible black. The lateral line reaches base 

 of caudal, but commonly skips occasional scales along its course. The 

 teeth are two-rowed, with well defined grinding surface; and usually 

 without serrated edges. The back is conspicuously checkered, owing 

 to the dusky margins of the scales. Middle of sides silvery, overlaid 

 with a blackish band which encircles the suout, and ends behind in a 

 black spot on base of caudal. Fins, ventral region, and a narrow 

 streak above lateral line not colored. Males with the head and ante- 

 rior half of body thickly beset with small tubercles. 



4. Notropis umbratilis Girard. 

 Very abundant. 



5. Zygonectes notatus Raf. 



This species is abundant both in mountain streams and in the bayous 

 and swamps along the Arkansas and Red Rivers. 



6. Lepomis humilis Grd. 

 Abundant. 



7. Lepomis megalotis Raf. 



8. Etheostoma coeruleum lepidum Girard. 



Very abundant. Considerable variation in the squamation of the 

 operclescan be observed in typical coeruleum from Ohio and Indiana, 

 and specimens are not rare from these localities having the operates 

 with two or three scales only. The prevalence of the form with naked 

 opercles over wide areas, makes it desirable to recognize provisionally 

 the subspecies lepidwn. The latter seems to be the only form found in 

 Kansas, where it has been collected in abundance from all parts of the 

 Proc. K. M. 88 39 .. 



