430 Proposed Changes in the A. 0. U. Check-List. [oct. 



Squatarola squatarola becomes S. s. cynosurae subsp. nov. Thayer 

 and Bangs (Proc. N. E. Zool. Club, V, April 4, 1914) claim that the 

 American bird differs from the European. Todd (Ann. Carnegie 

 Mus., X, p. 146) fails to find constant differences. 



Gallinula galeata becomes G. chloropus cachinnans subsp. nov. 

 Bangs, Proc. N, E. Zool. Club, V, pp. 93-99. The North American 

 bird is considered separable from that of South America (true galeata) 

 and both regarded as subspecies of G. chloropus of Europe. 



Callipepla squamata squamata becomes C. s. pallida Brewst. Bangs, 

 Proc. N. E. Zool. Club, IV, p. 99. 



Melanerpes formicivorus formicivorus becomes Balanosphyra f. 

 aculeata Mearns. Ridgway, Birds N. and Mid. Amer., VI, p. 105. 

 True formicivorus restricted to Mexico. [Generic name considered 

 elsewhere.] 



Dryobates scalaris bairdi becomes D. s. symplectus Oberholser. Ridg- 

 way, Birds N. and Mid. Amer., VI, p. 257. Endorses Oberholser in 

 restricting true bairdi to Mexico. 



Passer domesticus becomes P. hostilis Kleinschmidt, Falco, XI, No. 2, 

 Dec. 1915. The Enghsh bird, from which our American birds are 

 probably descended, is separated from the continental P. domesticus. 



(b.) Species which are changed to subspecies. 



Thalassogeron culminatus becomes T. chrysostoma culminatus 



Mathews, Birds Austral., II. 

 Oceanodroma kaedingi becomes O. leucorhoa kaedingi Willett, Auk, 



1915, p. 301. 



Somateria dresseri becomes S. mollissima dresseri Townsend, Auk, 



1916, p. 291. 



AIuco pratincola becomes Tyto alba pratincola Hartert, Vog. pal. 



Fauna, Heft VIII. 

 Otus xantusi becomes O. asio xantusi Ridgway, Birds N. and Mid. 



Amer., VI. 

 Atthis morcomi becomes A. heloisa morcomi. 

 Amizilis cerviniventris chalconota Ijecomes A. yucatanensis chal- 



conota, Ridgway, Birds N. and Mid. Amer., V. 

 Corvus caurinus becomes C. brachyrhynchos caurinus. Swarth, 



Univ. Cal. Publ. Zool. 10, No. 1, cf. also Rhoads, Auk. 



(c) Subgenera raised to Genera or New Genera proposed. 



Melanosterna ] 



PhcBbastria ] 



Thalasseus I Mathews, Birds Austral., II. The first two are not 



Hydroprogne f even recognized as subgenera in the Check-List. 



Onychoprion 



Sternula 



