50 Sixth Supplement to the A. O. U. Check-List. se 
Corvus americanus caurinus (Bp.) vs. Corves caurinus Bo. 
(Cf. Ruoaps, Auk, X, Jan. 1893, 18-21.) 
The proposed change was not considered expedient, the 
case being deemed not well enough understood to warrant any 
change. 
Melospiza lincolnt (Aup.) vs. AMelospiza lincolni striata 
Brewst. (Cf. Ruoaps, Auk, X, Jan. 1893, 21; Proc. Acad. 
Nat. Sci. Phila. 1893, 51.) 
The proposed change was not adopted, JZ 7. stréata being 
considered as entitled to recognition as a local northwest-coast 
form. 
Vireo gilvus swainsont (Bpo.) vs. Vireo gilvus ( Vieill.). 
(Cf. Ruoaps, Auk, X, Jan. 1893, 21; Proc. Acad. Nat. Sci. 
Phila. 1698) 53.) 
The type of Vireo swainsont Bp. came from Petaluma, Cali- 
fornia, instead of from Steilacoom, Washington, as represented 
(l. c.). Furthermore, in view of the instability of the Vzreo 
gtlvus group as represented in different parts of North America, 
and the tendency to development of slightly differentiated local 
forms, it was deemed unnecessary to recognize any of them in 
nomenclature. 
Sylvania pusilla (Wits.) vs. Sylvania pusilla pileolata 
(Pauu.). (Cf. Rrtoaps, Auk, X, Jan:.1893; 23 ; Proc. Acad: 
Nat. Sci. Phila. 1893, 55.) 
The proposed change was not considered necessary, the 
material submitted to the Committee showing that true Sy/vanza 
pusilla is found in Vancouver Island. 
Vv. ACTION DEFERRED. 
Final action on the following was deferred. 
Leptoptila brachyptera (SALVADOR ex GRAY) vs. Eugyp- 
tela albifrons (Bonap.). (Cf. Satvapont, Cat. Birds Brit- 
Mus. XXI, 1893, 545.) 
Owing to complications of synonymatic and other questions 
involved, final decision was deferred. 
