64 Second Supplement to the A. O. U. Check-List. [ January 
718 6. Thryothorus ludovicianus lomitensis Senn. 
Lomita Wren. 
 Thryothorus ludovicianus lomitensis SENN. Auk, VII, Jan., 
1890, 55. 
[B 265, part, C 47, part, R 60, part, C 68, part. | 
Has. Southeastern Texas. 
730 a. Sitta pygmza leuconucha Anruony. 
White-naped Nuthatch. 
Sitta prvgmea leuconucha ANTHONY, Proc. Cal. Ac. Sci. 
ad. ser. IT, Oct. 11, 1889, 77. 
[B 281, part, C 41, part, R 54, part, C 61, part.] 
Has. San Pedro Mountains, Lower California. 
751 a. Polioptila czeerulea obscura Ricpw. 
Western Gnatcatcher. 
Polioptila cerula obscura Ripew. Proc. U.S. Nat. Mus. 
V, March 21, 1883, 535, foot-note. 
[B 282 part, C 23, part, R 27, part, C 36, part.] 
Has. California, Arizona, and Western Mexico. 
Il. ELIMINATIONS. 
15. (Hypothetical List, p. 353). Buteo fuliginosus Sct. 
Little Black Hawk. 
This has been conclusively shown to be a melanistic phase of 
B. brachyurus Vieitt. (Cf. Scorr, Auk, VI, July, 1889, pp. 
243-245, and Ripew., Auk, VII, Jan., 1890, p. go.) 
III. CHANGES OF NOMENCLATURE. 
211. Rallus longirostris crepitans (GMEL.). This becomes 
Rallus crepitans GmMev. 
Rallus crepitans GMEL. S. N. I. 1788, 713; SENNETT, 
Auk, VI, April, 1889, pp. 163, 165. 
