The American Naturalist 



[M- 



ume (1895) it is seen to include 26 species and 7 subspecies. The 

 following alterations, subtractions, and additions have been 

 made in the interim. Antrostomus vocifems arizonse becomes A. 

 v. macromystax. The genus Phahr ruyptilm has two new subspe- 

 cies, P. n. nitidus and P. n. calif amicus. Chardeiles v. minor be- 

 comes C. v. chapmani, and Chardeiles texensis becomes C. acuti- 

 pemiis texensis. The genus of Swifts formerly in Micropus are 

 now in Aeronautes. We have but one species of it in this coun- 

 try—the White-throated Swift, which, known formerly as 

 Mieropiix melanoleuew, now is written Aeronavies melanokucus. 

 Among the Hummingbirds we have the new species TrocMlus 

 viidojwjnlMm, Trod, Has costse is changed to Calypte costse, and T. 

 amni to Calypte anna, in other words, the subgenus Calypte has 

 been raised to the rank of a genus. So likewise the subgenus 

 Selasphorus has been similarly dealt with, and another spe- 

 cies added to it, viz.: Selasphorus floresii. Also the subgenera 

 Stellula and Calothorax become genera, each containing a 

 single species. TrocMlus heloisa has been omitted from the list, 

 and Basil inna leucotis added to it. 



Finally, we come to the last, or seventeenth group, that vast 

 assemblage known as the Passeres. It will not be as conven- 

 ient to deal with these as the foregoing sixteen groups were dealt 

 with, as many of the families contain more birds than several 

 of the other " Orders " combined, so I shall resort to tabulating 

 the comparisons, comparing family with family. 



This comparison goes to show that in 1886 there were re- 

 corded 313 species of North American Passeres, and, in 1895, 

 321, giving a gain of 8 species for the nine years, while, for the 

 same years and interval of time, there were 117 subspecies, 

 and, in 1895, 185, showing a gain of 68 subspecies. 



With respect to the Cotiagidse, the single species indicated in 

 the above Table is Xantus's Becard (Platypsaris albiventris). 

 Among the Tyrannidie the following changes were made : (1) 

 The new subspecies Myiarchw cinerascens nvMingiwaa added, 

 and also (2) the subspecies Conteypus rkhardsonii peninsula ; (3) 

 the species Erapidonax cineritius is added, and (4) Empidonax 

 acadicus becomes E. virescens, as does (5) E. pusillus become E, 

 trailli, and (6) E. trailli alnormn (1895) has taken the place of 



