Io8 Fourth Supplement to the A. O. U. Check-Ltst. [January 



IV. PROPOSED CHANGES IN NOMENCLATURE 



REJECTED. 



Hirundo Linn. vs. Chelidon Forst. ( Cf. Reichenow, 

 J. f. O. 1SS9, v^^.) 



An examination of Shaffer's work (Elementa Ornithologica) 

 as regards its scope, character, and purpose, including his treat- 

 ment of Hiricndo^ fails to substantiate the claim that H. rustica 

 must be considered the type of Hirundo^ and that consequently 

 Chelidon becomes a synonym of Hirufido. 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 aikeni Brewst. Auk, VIII, April, 1891, 



139- 



Megascops asio macfarlanei Brewst. Auk, VIII, April, 



1 89 1, 140. 



Megascops asio sattiratus Brewst. Auk, VIII, April, 1S91, 



HI- 



Vireo vicinior 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 jamaicensis coturniculus Baird vs. Porzana 

 coturniculus Ridgw. ( C/". Ridgway, Pr. U. S. Nat 

 Mus. XIII, 1890, 309. 



43 1. 1 Trochilus Jioresii Gould vs. T. rubromitratus 

 RiDGW. Auk, VIII, Jan. 1S91, 114. 



The question of the generic or subgeneric rank of the genus 

 Ardetta Gray. 



Errata.— In the Third Supplement to the Check-List (Auk, VIIT, Jan. 

 1891) numbers 582/^ and 582/ (p. 86) should stand respectively as 581// 

 and 581/. 



