146 U.S. NATIONAL MUSEUM BULLETIN 2 82 



A, 6 mi. S. Marshfield, Webster Co., UMMZ 152013 (3), August 20, 1940, Harry 

 and Pellock. Jacks Fork Current R., Alley Spring State Park, Shannon Co., 

 UMMZ 164823 (1), April 27, 1946, Stanton Hudson. James R., 1 mi. S. Galloway, 

 Greene Co., UMMZ 167170 (13), June 29, 1931, John Delavan and Creaser. 

 Current R. and Spring Br., Blue Spring, near Eminence, Shannon Co., UMMZ 

 (no. C41-16) (1), June 27, 1941, C. B. Obrecht. Current R., at Cave Spring, 

 near Hunter, Carter Co., UMMZ (no. C41-21) (1), July 31, 1941, Obrecht. 

 Eleven Point R., Turner Mill Spring, Oregon Co., UMMZ (no. C41-41) (2), 

 August 25, 1941, Obrecht. Marble Cr., near French Mills, Madison Co., UMMZ 

 (no. CC21) (1), October 12, 1933, Creaser and W. Clanton. Eleven Point R., 

 sec. 11-12, T. 24 N., R. 3 W., 1 mi. below Turners Mill, UMMZ (no. 3) (1), 

 June 20, 1938, A. Hugh Denny. Current R., sec. 5, T. 23 N., R. 2 E., UMMZ 

 (no. 20) (1), July 27, 1938, Denny. Black R., Lesterville, Reynolds Co., INHS 

 (uncataloged) (3), October 12-15, 1948, Lowry. Current R., Hwy. 14, 0.7 mi. 

 W. Doniphan, Ripley Co., CU 24243 (2), August 13, 1953, C. R. Robins and 

 W. S. Woolcott. Eleven Point R., Hwy. 14, 25.4 mi. W. Current R., Oregon 

 Co., CU 24266 (5) and CU 24267 (15), August 13, 1953, Robins and Woolcott. 

 Little Black R., Hwy. 14, 2.4 mi. E. Fairdealing, Butler Co., CU 24281 (2), 

 August 13, 1953, Robins and Woolcott. Long Cr., Oasis, Taney Co., CU 32834 

 (5), November 10, 1956, L. W. Knapp and J. P. Henley. White R., Hwy. 86, 

 near Shell Knob, Barry Co., CU 32861 (15), November 9, 1956, Knapp and 

 Henley; CU 32864 (8), February 23, 1957, Knapp and Henley; CU 32935 (3), 

 July 4, 1957, Knapp and M. Bowman. Finley Cr., U.S. Hwy. 160, S. of Nixa, 

 Christian Co., CU 37453 (6), March 29, 1961, Knapp and party. Finley Cr., at 

 crossing, 5 mi. E. of Sparta, Christian Co., CU 37718 (2), August 28, 1957, 

 Knapp and R. Myers. Flat Cr., at second crossing above James R., Stone Co., 

 CU 38052 (2), September 12, 1957, Knapp and party. James R., at Finley Cr., 

 Stone Co., CU 38433 (1), May 18, 1958, L. and B. Knapp. James R., Road A, 

 Webster Co., KU 5550 (1), June 5, 1960, D. A. Di&tler and A. L. Metcalf. Current 

 R., Round Springs State Park, sec. 20, T. 30 N., R. 4 W., Shannon Co., KU 

 7645 (18), April 7, 1963, F. B. Cross and M. L. Wiley. Current R., Owls Bend, 

 Hwy. 106, Shannon Co., KU 7679 (1), April 8, 1963, Cross and Wiley. James 

 R., Road D, W. of Turner, Greene Co., KU 7853 (1), May 11, 1963, Cross. 

 James R., Hwy. M125, 6 mi. S. Strafford, Greene Co., KU 7882 (1), May 11, 

 1963, Cross. Saint Francis R., Sam A. Baker State Park, sec. 32-33, T. 30 N., 

 R. 5 E., Wayne Co., UMoMZ 7261 (4), September 20, 1949, Perry Robinson. 

 Sinking Cr., Hwy. K, 9.2 mi. from junction Hwy. K with Hwy. 21, Reynolds 

 Co., USNM 202484 (9), June 29, 1964, Leslie W. Knapp. Black R., Hwy. A, 

 3 mi. W. Williamsville, Wayne Co., USNM 202487 (11), June 29, 1964, Knapp. 

 Bryants Cr., Hwy. 14, 14 mi. E. Ava, Douglas Co., USNM 202488 (2), May 21, 

 1965, Knapp. 



Diagnosis. — Noturus (Rabida) albaier, aside from Noturus hilde- 

 hrandi which has eight pelvic rays throughout its range, is the only 

 species of the subgenus with typically nine soft pectoral rays. In 

 contrast to other species of the subgenus the body is elongate with 

 more vertebrae and the head is proportionately small. The head 

 length in the standard length goes 3.7 times or more, distinguishing 

 albater from other Rabida, except A'', elegans and N. hildebrandi 

 lautus. From the members of the elegans group, albater is distinguished 

 by pigmentation, especially the large dark adipose bar, the basicaudal 



