234 SNODGRASS AND HELLER 



Family Hiriindinidae 347 



71. Prague modesta 347 



72. Hirutido erythrogaster 348 



Family Mniotiltidse 348 



73. The Certhidea olivacea Series 350 



73^. Certhidea olivacea olivacea 350 



73^. Certhidea olivacea Inteola 351 



731-. Certhidea olivacea ridgwayi 352 



73^. Certhidea olivacea fusca • 352 



73^. Certhidea olivacea mentalis • 353 



73/- Certhidea olivacea becki 354 



74. The Certhidea ci?ierascens Series 354 



74<3;. Certhidea cinerascefts citierascens ........ 354 



74^. Certhidea cinerascens bifasciata 356 



75. Deudroica petechia aureola 35" 



Family Troglodytidie 358 



76. Nesomimiis trifasciatus 358 



77- Nes07nimus niacdonaldi 359 



78. Nesominius adamsi 360 



79. The Nesomitmis personatiis Series 362 



79«. Nesomimus persoiiatus baiiri 362 



79^. Nesomiinus fersonatus persoiiatus 363 



79c. Nesotnimus persoitatus bindloei 365 



79^/. Nesoinitnus personatus htilli 365 



80. The Nesomimiis melanotis Series 367 



8o«. Nesomimus melanotis dierythrus .... . . 367 



8o3. Nesomimiis mela7totis barringtofii . . 368 



80c. Nesomimus melanotis melanotis 369 



8o(f. Nesomimus melatiotis parvulus • . . . . . . 370 



INTRODUCTION. 



The succession of families and genera followed in this paper 

 is that of the American Ornithologists' Union. Trinomials are 

 applied according to A. O. U. canons of nomenclature, t. e., 

 when forms overlap in their variations, regardless of the pos- 

 sibility or impossibility of their interbreeding, they are called 

 subspecies. A number is given to each species of a genus, and 

 this number is intended to stand, not for the form first named, 

 but for the sum of all the subspecies, where subspecies that 

 compose the species occur, not this number and a letter for 

 each of the other subspecies as in the A. O. U. Check List. 

 Each variety of a species is lettered. Thus : 63, Geospiza for- 

 tis consists of 63^, G. fortis fortis; 63*^, G. fortis fratercula^ 

 etc.; not 63, Geospiza fortis; 62,a, G. fortis /ratercula, Qic. 



