144 U.S. NATIONAL MUSEUM BULLETIN 282 



indicating that the elegans and exilis were not fixed with the flaviis 

 and baileyi. All were evidently mixed at a later time. (2) A^. elegans 

 is known to occur in the Green River system, Kentucky and the 

 Duck River system, Tennessee. The Duck River population is 

 boldly marked, much more so than any examined from the Green 

 system. The specimens in question, of A^. elegans, USNM 201600 

 (pi. 12, fig. 2), are identical in color pattern and general morphology 

 to others from the Duck system. (3) A^. exilis is known to have been 

 collected with A^. elegans in the Duck system, and is fairly common 

 in the lower Tennessee drainage, ranging upstream as far as Alabama. 

 Both exilis and typical elegans are unknown from the upper Tennessee 

 drainage. 



Thus, the available evidence points to the specimens of A^. fiavus 

 and A^. baileyi having been collected from Abrams Creek, in the upper 

 Tennessee drainage and suggests that those of N. exilis and A^. elegans 

 were collected in the lower Tennessee drainage, probably in the 

 Duck River system. 



Noturus albater, new species 



OZARK MADTOM 

 Frontispiece; Plates 4 (Fig. 4), U (fig. 2); Map 10 



Noturus nocturnus Jordan and Gilbert [misidentifications]. — Meek, 1893, p. 229 

 (Arkansas records, in part: Spring R., Black Rock;* Middle Fork White R., 

 Fayette ville;* White R., Oxford Bend); 1894a, pp. 75, 92 (Spring R., Black 

 Rock,* Ark.). 



Noturus miurus Jordan [misidentifications]. — Meek, 1894a, pp. 75, 92 (descrip- 

 tion; Arkansas records: Middle Fork White R.* and Main Fork White R.,* 

 Fayetteville; White R., Oxford Bend). 



Schilbeodes miurus (Jordan) [misidentification]. — Hubbs and Ortenburger, 1929, 

 pp. 96-97 (reference to previous Arkansas records, in part). 



Type-specimens.— UMMZ 151171 (holotype) and UMMZ 167236 

 (1 paratopotype), from the White River, at Forsyth, on Hwy. M80, 

 Taney Co., Missouri, collected August 4, 1940, by G. V. Harry and 

 Mitro Pellock. 



Other paratypes. — The number of specimens, in parentheses, 

 follows the museum number. 



UNITED STATES: Arkansas: Middle Fork White R., N. of Carter, 

 Washington Co., UMMZ 128311 (37), July 15, 1939, J. D. Black and Henry 

 Mills. Buffalo R., 5 mi. SE. Saint Joe, U.S. Hwy. 65, 2.5 mi. above Gilbert, 

 Searcy Co., UMMZ 169910 (1), August 17, 1940, R. M. Bailey and M. E. Davis. 

 Little Red R., U.S. Hwy. 65, 1.5 mi. SE. Leslie, Searcy Co., UMMZ 169928 (2), 

 August 17, 1940, Bailey and Davis. West Fork of White R., 4 mi. S. West Fork, 

 Washington Co., UMMZ 170900 (3), September 14, 1940, Bailey and Davis. 

 White R., Fayetteville, CNHM 1623 (4), S. E. Meek. Main Fork White R., 



* Material indicated by an asterisk has been re-examined. 



