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BROOKLYN INSTITUTE MUSEUM. SCIENCE BULLETIN ; I ; 14. 
surface ochraceous buff or cream}' white, barred with dark brown, mo.-t 
heavily 011 brea.st and juguliun, least so on cri.ssuin ; thighs ochraceous, 
sparsely spotted with dusky ; tar.-i ochraceous buff, almost immaculate; 
under wing-co\'erts ochraceous, varied a little with whitidi, and 
barred with dark brown ; axillars whitish, somewhat mixed with buff, 
and barred with deep brown ; iris orange 5'ellow ; bill black ; feet slate 
gray, claws blackish.. Wing, 338 ; tail, 184 ; exposed culmen, 42 ; 
culmen wnthout cere, 28.5 ; tarsus, 56 mm. 
This new race is of about the same size as Bubo virgiiiianus 
mcscmbr'mvs, from Co.sta Rica, but differs conspicuously in its much le.ss 
rufescent coloration throughout ; in fact, it is much less like B. v. 
viescrnbrinus than like Bubo virginianus melancerus, from Mexico. The 
coar.seness of its barring, particularly on the lower parts, di.stinguishes it 
readily from Bubo virguiianus uacurutu {—magella^iicus^ , as does also its 
darker coloration. From the recently described ea.st Brazilian form. 
Bubo virginiamts deserti'^, it may be separated by its much more rufescent 
colors both above and below, as well as on the face ; for B. v. dcscrti is 
entirely gray or blackish and white, with little or no admixture of brown 
or ochraceous. 
In a revision of the American great horned owls published a few 
years agof, I emplo}^ed the generic name Asio in place of Bubo, follow- 
ing Mr. StoneJ. Recent changes in the rules for fixing t}^pes of genera 
now make it po.ssible to retain the name Bubo, since by tauton3uny the 
type of Asio Brisson^ is a species of another genus, and Bubo is, there- 
fore, apparently the earlie.st available name for the horned owls. 
Bubo magcllauicus deserti Reiser, Anzeiger Kais. Akad. Wi.ss., Math.- 
Natur. Kl., XLII, 1905, No. XVIII, p. 324 (Joazeiro, Brazil). 
t Proc. U. S. Nat. Mus , XXVII, 1904, pp. 177-192. 
+ Auk, XX, 1903, pp. 272-276. 
§Ornith., I, 1760, p. 477. 
