108 Fourth Supplement to the A. O. U. Check-List. (January 
IV. PROPOSED CHANGES IN NOMENCLATURE 
REJECTED. 
Hirundo Linn. vs. Chelidon Forst. (Cf. REIcCHENOw, 
J. f. O. 1889, 187.) 
An examination of SHAFFER’s work (Elementa Ornithologica) 
as regards its scope, character, and purpose, including his treat- 
ment of AZzrzuzdo, fails to substantiate the claim that A. rustica 
must be considered the type of AZrapdo, and that consequently 
Chelidon becomes a synonym of fiérundo. Therefore the 
former action of this Committee on this case is now reaffirmed. 
V. ACTION DEFERRED FROM LACK OF MATE 
RIAL. 
Final action on the following was deferred, owing to the ab- 
sence of sufficient material to enable the Committee to arrive a 
satisfactory decisions. 
Megascops asio atkent Brewst. Auk, VIII, April, 1891, 
139. 
Megascops asio macfarlane? Brewst. Auk, VIII, April, 
1Sgt, 140. 
Megascops asto saturatus BREwst. Auk, VIII, April, 1891, 
41. 
Vireo victntor californicus STEPHENS, Auk, VII, April, 
1890, 159. 
The following proposed changes of nomenclature were laid on 
the table, to be considered at some subsequent meeting of the 
Committee, in connection with other cases requiring revision. 
216 a. Porzana jamaticensis coturniculus BAIRD vs. Porzana 
coturniculus Ripcw. (Cf. Rineway, Pr. U..S. Nat 
Mus. XIII, 1890, 309. 
431.1 Zrochtlus floresii Govuip vs. 7. rubromitratus 
Ripew. Auk, VIII, Jan. 18gr, 114. 
The question of the generic or subgeneric rank of the genus 
Ardetta Gray. 
ErRATA.—In the Third Supplement to the Check-List (Auk, VIII, Jan. 
1891) numbers 5824 and 5827 (p. 86) should stand respectively as 5812 
and 5813. 
