750 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Achdt female.—hength (skins), 334r-350 (342); wing, 166; tail, 

 168-169 (168.5); exposed culmen, 28-29 (28.5); tarsus, 41.5-42 (41.7); 

 middle toe, 23-23.5 (23.2). " 



Mountains of southwestern Mexico, in State of Guerrero (Omilteme). 



Aphelocoma guerrerenm Nelson, Proc. Biol. Soc. Wash., xvi, Nov. 30, 1903, 154 

 (Omilteme, Guerrero; coll. U. S. Nat. Mus.). 



Page 345: To synonj'mj' of genus Gyanocitta add: 



Slellerodtta Coues, Key N. Am. Birds, 5th ed., i, 1903, 495. (Type, Corvus 

 stelleri Gmelin. ) 



In The Condoj; iv, 1902, 41-44, there is a paper by Mr. Walter K. 

 Fisher on the North American forms of Cyanociita stelleri (except C. s. 

 diademata), accompanied by a map showing clearly the geographic 

 range of each form together with areas of intergradation. The reader 

 is referred to this paper, not only for special information on the species 

 and its geographic variations but also as a model of the very best type 

 of technical ornithology. 



Page 353: Citation of Cyanocitta stelleri litrn'olis Maynai-d to be 

 corrected as follows: 



Cyanocitta stelleri litoralis Maynard, Ornithologist and Oologist, xiv, no^ 4, Apr.. 

 1889, 59 (Vancouver I., British Columbia; coll. F. B. Webster). 



Page 355: To citations of Gyanocitta stelleri carbonacea add: 



ANDKEwsand Grinnell (J.), Proc. Ac. Nat. Sci. Phila., 1903, 9 (Siskiyou Mts., 

 California; habits; crit.). 



Page 357: To citation of Gyanura stelleri under Gyanocitta stelleri 

 annectens add: 



Blakiston, Ibis, 1862, 8 (Rocky Mts., n. w. Canada). 



Page 362: To synonymy of Gyanocitta stelleri azteca add: 



[Lophocorax] diademalus Heine and Reichenow, Nom. Mus. Hein. Orn., 1882, 

 116 (Mexico). 



Page 364: To synonymy of Gyanocitta stelleri coronata add: 



{Cyanoexlia[\ graZeata Heine and Reichenow, Nom. Mus. Hein. Orn., 1882, 116 

 ("Bogota"). 



Page 364: For genus P^'isor^w' Bonaparte read CVacfes Billberg, 

 and insert the following reference: 



Cractes Billberg, Synopt. Faunse Scand., i, pt. ii, 1828, 14. (Type, Corvus 

 infaustus Linn^us. ) 



Page 366: For Pensorem canadensis canadensis read Grades cana- 

 densis canadensis. 



Page 368: For Perisoreus canadensis nigricapillus Ridgway read 

 Cractes canadensis nigricaj)illus (Ridgway). 



a Two specimens. 



