BIRDS OF NORTH AND MIDDLE AMERICA. 209 



Ainmodromus sarannarum Cory, Auk, iii, 1886, 212, part (Cuba); Birds W. I., 



1889, 99, part (do.); Cat. W. I. Birds, 1892, 15, 112, part (do.) ■— Sharps, 



Cat. Birds Brit. Mus., xii, 1888, 687, part. 

 Amiiiodromus^ avstralis Maynard, Am. Excli. and INlart., and Household Journ., 



iii, Jan. 15, 1887, 33 (type from Nassau, New Providence, Bahamas;- coll. 



C. J. Maynard); ib.,Feb. 5, 1887, 69 (see Chapman, Auk, v, 1888, 274). 



COTURNICULUS SAVANNARUM OBSCURUS (Nelson). 

 MINATITLAN SPARROW. 



Adult male ^^imihir to that of C. .s. ■'<((ra/uu(/'u//i, but .still darker in 

 coloration, with tail averaging" longer and feet smaller; adult female 

 not di.sting-ui.shable from that of C. s. jxisserinus. 



Adult male.— l^en^th (skins), 109.47-120.40 (114.81); wing, 53.31- 

 68.42 (55.12); tail, 37.34-43.69 (39.62); exposed culmen, 10.92-12.45 

 (11.68); depth of bill at base,. 7.62-8.13 (7.87); tarsus, 17.78-19.81 

 (19.05); middle toe, 13.21-14.73 (13.72).=' 



Adult fe7nale.—I^ength (skins), 120.65-129.54 (123.19); wing, 59.69- 

 63.50 (61.47); tail, 42.93-47.75 (44.70); exposed culmen, 10.67-11.94 

 (11.43); depth of bill at base, 7.11-7.62 (7.37); tarsus, 18.03-20.32 

 (19.56); middle toe, 13.97-14.99 (14.48).* 



I have some hesitation in referring the females whose measure- 

 ments are given above to this form, for the reason that they are so 

 much larger and so different in color from the males, in both respects 

 being, for all that I can see, identical with 61 s. jxisserlnu.':>. It is 

 scarcel}' likely, however, that in the series of specimens collected at two 

 localities as widely separated as Minatitlan, Vera Cruz, and Palenque, 

 Chiapas, all the males would represent one form and all the females 

 another, especiall}' since the two sexes were at each place collected on 

 the same dates. 



Coast district of Vera Cruz (near ^Minatitlan, etc.) to Chiapas (Pa- 

 lenque); resident. 



Ammodramus .mvannarmn obscurus 'SEhso's, Auk, xiv, Jan., 1897, 61 (Minatitlan, 

 s. e. Vera Cruz, Mexico; U. S. Nat. Mus.). 



COTURNICULUS SAVANNARUM BIMACULATUS (Swainson). 

 WESTERN GRASSHOPPER SPARROW. 



Similar to C. .s. passc/'inu.^, but wing and tail longer, bill smaller and 

 relatively more slender, and coloration paler, with more rusty brown 

 and less black on upper parts. 



^ Owing to printer's error, spelled "Ammo Dromns Ansiralis," this being corrected 

 in number for Feb. 5, where redescribed. 

 - "Rare on the Bahamas, but constantly in Florida." 



* Twelve specimens. 



* Four specimens. 



17024—01 14 



