BIRDS OF NORTH AND MIDDLE AMERICA. 569 



depth of bill at base (one specimen). 7. 87: tarsus. 13.97-l-tr.99 (14.18); 

 middle toe. 11.43-12.19 (11.91). ^ 



Adult female— Ij^ngih (skins), 91.41-93.17 (92.46): wing. 49.. 53- 

 52.07 (50.80); tail, 38.35-38.61; exposed oulmen, 7.87-8.38 (S.13): tar- 

 sus, 13.72-14.73 (14.22); middle toe, 10.92-11.18.- 



Southern Mexico, in States of Oaxaca (Tehuantepec City) and Chia- 

 pas (Tonala): Guatemala (Retalhuleu); Nicaragua (Managua). 



Spermophila parva Lawrence. Am. N. Y. Acad. Sci., ii, May 28, 1883, 382 (Tehuan- 



teiiec, Oaxaca, s. w. Mexico; U. S. Nat. ]Mus. ). — Salvin and Godmax, Biol. 



Centr.-Am., Aves, i, 1885, 357.^ 

 Spermophila richardsoni Salvin and Godmax, Ibiss, s^ixth 8er.,iii, Oct., 1891, 611 



(Tonala, Chiapas, s. w. Mexico, and Retalhnleu, Guatemala; coll. 8alvin 



and Godnian). 



SPOROPHILA GUTTURALIS i Lichtenstein ). 

 YELLOW-BELLIED SEEDEATER. 



Adulf nude. — Head, neck, and upper chest black: rest of under parts 

 primrose yellow or A^ellowish white, abruptly defined against the black 

 of upper chest, the sides and flanks more or less mottled or otherwise 

 varied with dusky; upper parts (posterior to head, ])ut sometimes 

 including hindneck and nape) plain olive, lighter and more grayish 

 on rump; bill pale yellowish or dull whitish (in dried skins): legs and 

 feet horn color: length (skins), 91.95-110.74 (103.12); wing, 51.56- 

 57.91 (54.36); tail, 41.40-48.26 (44.20); exposed culmen, 8.13-9.14 

 (8.64): depth of bill at base, 7.11-7.87(7.37): tarsus. 13.21-15.24(14.22); 

 middle toe, 9.14-10.92 (10.16).* 



AdvUfetnfde. — Above plain, rather light, olive; beneath rather light 

 brownish bufl'y, paler and more yellowish on abdomen, browner on 

 sides and flanks, the throat sometimes more or less dusky; bill dusk}-; 

 length (skins), 91.95-114.55 (99.06); wing, 51.31-58.93^(54.10); tail, 

 40.89-15.72 (42.67); exposed culmen, 8.64-9.14 (8.89); depth of bill 



* Three specimens. 

 "^ Two specimens. 



^Examination of additional material has convinced me that I led Messrs. Salvin 

 and Godman into error by informing them (see Ibis, 1891, p. Ill) that the type of 

 S. parva was certainly a different form from the females of that which they subse- 

 quently named S. rkhardsom. I have not been able to examine the latter in the 

 present connection, and there is thus still a possibility that they may really not be 

 females of the j^resent bird, in which case my opinion, as expressed to them, would 

 be correct; but I have carefully compared the type of X parva with specimens which 

 are unquestionably females of *S'. richardsonl from Mexico, and find it to be without 

 doubt the same form. 



* Thirty specimens. 



