858 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Melospiza fasciata Jiiddi Bishop, Auk, xiii, Apr., 1896, 132 (Rock Lake, Towner 



Co., North Dakota; coll. L. B. Bishop). — Ajikricax OKxiTnoLooisTs' Uxiox 



Committee, Auk, xiv, 1897, 122 (no. o81/. ). 

 (?) [Frijhjilla] hicmalls Gmelix, Syst. Nat., i, pt. ii, 1788, 922 (New York; l)ased 



on Winter Finch Pennant, Arct. Zool., ii, 376; Latham, Gen. Synoj)., ii pt i 



274). 



MELOSPIZA CINEREA MONTANA (Henshaw). 

 MOUNTAIN SONG SPARROW, 



Similar to J/, c. inelodia but wing, tail, and tarsi averaging 

 decidedly longer, bill smaller and relatively more slender, and colora- 

 tion grayer; 3'oung with ground color of under parts dull white or 

 grayish white, instead of more or less bully, that of upper parts less 

 tawny than the young of J/, c. melodia. 



Adult inalc. — Length (skins), 141.73-104.85 (150.88); wing, 65.53- 

 73.91 (69.34); tail, 63.50-76.71 (69.60); exposed culmen, 11.18-13.97 

 (12.19); depth of bill at base, 6.86-7.87 (7.37); tarsus, 21.34-23.37 

 (22.35); middle toe, 15.24-17.02 (16.00).^ 



.4^/?^/^ /('///(//(.— Length (skins), 135.89-161.04 (148.34); wing, 62.48- 

 69.85(66.29); tail, 62.48-72.64 (66.80); exposed culmen, 10.41-12.70 

 (11.94); depth of bill at base, 6.86-8.13 (7.11); tarsus, 20.83-22.86 

 (21.84); middle toe, 14.99-16.26 (15.49).' 



^Thirty-nine specimens. 



-Thirty specimens. 



Specimens from the western portion of the Great Basin and adjacent jiortions of 

 California have the wing and tail shorter and the bill, as a rule, thicker than those 

 from the Rocky Mountain district, and are therefore not typical; but since they do 

 not differ in coloration it seems best to refer them to the same subspecies. Speci- 

 mens from the Rocky Mountain district, the western portion of the Great Basin, and 

 eastern California, respectively, average as follows: 



Loealilv. 



Fifteen adult males from Rocky Mountain district. 

 Thirteen adult males from western edge of Great 



Basin 



Eleven adult males from eastern California 



FEMALES. 



Ex- 

 Tail, posed 

 Iculmen. 



70.36 71.37 



69.34 

 67. 82 



69.60 

 67. 31 



Twelve adult females from Rocky Mountain dis- 

 trict I 66. 55 I 67. 82 



Twelve adult females from western edge of Great 

 Basin W^. 04 65. 79 



Six adult females from eastern California 65. 53 1 67. 31 



12.45 

 12. 45 



11.43 



12. 19 

 12. 19 



Middle 

 toe. 



16.26 

 16. 00 



1.=). 49 



15.49 

 16. 00 



The western specimens incline in measurements toward M. c. hecvinanni, but are 

 still decidedly larger (except the bill) and the coloration is decidedly paler and less 

 brown. 3Iany specimens of this form are scarcely to be distinguished as to colora- 

 tion from the grayer examples of M. c.meMia, hut the longer wing and tail, and, 

 except among specimens from the western parts of its range, the decidedly smaller 

 and more slender bill will serve to readilv distintruish them. 



