NO. 1352. AMERICAN GREAT HORNED OWLS— OBERHOLSER. 179 



}f>'asurei)wntx (^. inaJas). — Wiiiu". :U2-827 (av(M-ai!^o, ;^>2t».;>) iiiiii.; 

 tail, 183-200 (av<M-a*>v. IIM) niui.; oxposod culmoii, 35-37 (averago, 36) 

 mm.; culmeii without cere. 25-2(5 (average, 25.8) mm. — {1 fenuih^. — 

 Wing, 342 mm.; tail, 204 mm.; exposed culmen, 37 mm.; culmen 

 without cere, 25 mm. 



This race is very closely allied to those from Mexico and the south- 

 western United States, averaging- different from i^aclficK^ only in 

 reduced size and narrower character of the dark ])arring on the lower 

 surface; from melanetrux. in smaller l)ill, paler upper parts, and less 

 heavily barred ventral surface. 



Gmelin described both magelhiniens and virgin Ian u-'< on the same 

 page," but as all the American forms of the genus seem to be conspe- 

 ciric. the name niageUanieux^ as it stands first, nuist ))e used foi- the 

 sp(H'ies. 



Specimens have been examined from the following localities; 



Chile. — Gregory Ba}', Straits of Magellan; Santiago. 



Arge7itine RepiMlc. — Upper Rio Chico. Patagonia. 



ASIO MAGELLANICUS NIGRESCENS (Berlepsch). 



Buho nigrescens Berlepsch, Proc. Zool. Soc. Lond., 1884, p. 309. 



Cliat'st. siihsp. — Similar to Aslo ii>ageUaniciii< magellanimf<^ but with 

 more blackish and less rufous both above and l)elow. 



Type locality. — Cechce (10,000 feet), western Ecuador. 



Geographical dlMrlhution. — Ecuador. 



MeasnremenU {of type, a female). — Wing, 350 nun.; tail, 185 nun.; 

 culmen, 30.5 mm.; tarsus, 80 mm. 



Although not examined in the present connection, this form is appar- 

 ently quite distinct, differing from vlrgl/tlanits and the other similar 

 races in its deep blackish appearance and its notable reduction or lack 

 of fulvous tints. 



ASIO MAGELLANICUS MESEMBRINUS, new subspecies. 



Chars, suhsp. — Reseml)ling Aslo inagdltoilcnx magtlhatlcus^ Imt 

 very much more rufescent throughout, and with a larger l)ill. 



Type locality. — San Jose, Costa Rica. 



GeogTaphical dlstrlhatlon. — Costa Rica. 



}r<'astiir('nun)tf< {<f type). — Wing, 340 nun.; tail, 1!>8 mm.; exposed 

 culmen, 41 nun.: culmen without ciuv, 2i> nun.; tarsus, 03 mm.: mid- 

 dle toe, 30 mm. 



Deserlptlon. —TyiJC, [female] adult. No. 33218. U.S.N.]\I.; San 

 'lose, Costa Rica; J. Carmiol. Above brownish hlack. much mottled 

 and vermiculated with whitish and Imffy, these markings least con- 

 spicuous on the head; the cervix, upper l)ack, and i-ump with much 



«Syst. Nat., I, 1788, p. 286. 



