-".1352. AMERICAN GREAT HORNED OWLS—OBERITOLSER. 181 



hliick bar; horns brownish ))lack, the inner and basal parts ochraicous; 

 sides of neck minolod white, dark brown, and oehraceous; chin and 

 throat white, se})arated by a band of dark brown and oehraceous; 

 breast oehraceous, mottled with whitish and dark brown, and heavily 

 spotted witli brownish black; rest of lower parts, with lining- of wing, 

 ^vhito, more or less mixed with oehraceous, and Ixirred with daik 

 brown; the oehraceous legs and didl butfy feet barred and spotted 

 with dusky. 



This race more (dosely resembles pacificuH than it does either jml- 

 lexccnn or laayenuls^ both of w^hich in geog-raphical position are nearer. 

 It w\'A\ be distinguished from pac!fieu>^ l)y its smaller size, larger bill, 

 darker upper parts, and the usually g-reater amount of rufescent 

 admixture in the plumage of the face. 



The tj^De of this race is a specimen in rufous (or better, oehraceous) 

 plumage, but not less common is a gray phase. diiJ'ering in the restric- 

 tion and pallor of the rufescent parts of the plumage, though the gen- 

 eral effect of the whole bird is just as dark. 



Specimens examined come from the following localities: 



Oaxaca. — Tehuantepee. 



Guanajuato. — Guana j uato. 



Jalisco. — Guadalajara; Etzatlan; La Barca. 



Puebla. — Orizaba ; Chalchicomula. 



M'wlioacan. — Querendaro; Zamora. 



Mexico. — Mount Popocatepetl; Tlalpam. 



Tamaulipas. — SotaLa Marina. 



Guatemala. — [No further locality given.] 



ASIO MAGELLANICUS MAYENSIS (Nelson). 



Buho virginianus mayensis Nelsox, Troc. Biol. 8oc. Washington, XIV, 1901, 

 p. 170. 



Chars, suhsj). — Resembling Ash> magellanicu^'i melavcerus, but paler; 

 the lower parts not so heavily barred, and with less i-ufous; face and 

 feet less rufescent, the latter less conspicuously mottled with dusky. 



Ty2>e locality. — Chichen Itza, Yucatan, Mexico. 



Geographical distribution. — Yucatan, Mexico. 



Measurements {of ty])<\ a feinale). — Wing. 315 mm.; tail. 11>S mm.: 

 exposed culmen, 11 nnn. ; culmen without cere, 2!> mm. ; tarsus. 51 nun. ; 

 middle toe, 15 ram. 



This form was descri))ed l)y Mr. Nelson from a single specimen, and 

 none but the ty])e has l)een available for present comparison. The 

 validity of the race, however, seems to be sutKciently attested by the 

 characters above detailed. It approaches apparently most closely to 

 puJlescenx and pacijicus; differing from the latter in smaller size, larger 

 l>ill, usually more grayish face, and slightlv paler lower surface. 



