PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 89 



A. — Lower half or more of the tarsus completely naked, like the toes. 

 1. SCOPS NUDIPES. 



Bubo nudipes, Vieill., Ois. Am. Sept. 1807, pi. 22. 



Scops nudipes, Cuv., Reg. Anim. 1829, 347. — Strickl., Orn. Syn. 1, 1855, 203. — Lawr., 

 Ann. Lye. N. Y. IX, 1868, 132 (Costa Eica ).— Salvin, P. Z. S. 1870, 216 ( Veragua).— 

 Scl. & Salv., Nom. Neotr. 1873, 117 (Costa Eica to Columbia). — Sharpe, Cat. 

 Strig. Brit. Mus. 1875, 121 {Veragua; Costa Eica).— Bouc, Cat. Av. 1876, 91 

 ( Veragua). 



EphiaUtes nudipes, Gray, Genera B. 1, 1844,38. 

 Acnemis nudipes, Boxap., Rev. et Mag. de Zool. 1854, 542. 

 Strix psilojwda, Vieill., Nouv. Diet. XVI, 1817, 46. 



Hab. — Costa Rica and Veragua. 



Diagnosis. — u Adult. Above sandy rufous, vermiculated with black, 

 much darker on the back than on the head, the dorsal feathers black in 

 the centre, barred and spotted with sandy rufous, these bars more dis- 

 tinct on the scapulars, the outermost of which are silvery white, exter- 

 nally tipped with black ; wing-coverts decidedly darker than the back, 

 the innermost of the least series uniform blackish brown, the rest spot- 

 ted and barred with sandy rufous, the bars especially broad on the 

 greater series, some of which have a tolerably large buffy white spot 

 near the tip of the outer web ; spurious quills externally notched with 

 sandy rufous, inclining here and there to whitish; primary coverts 

 nearly uniform blackish brown, with a few bars of sandy rufous near 

 the tips of the outer webs ; quills blackish brown, the inner webs of 

 the primaries quite uniform, excepting for a few yellowish bars near the 

 bases of the interior feathers, the secondaries indistinctly barred with 

 ashy brown on the inner webs, all the quills externally barred with 

 sandy rufous, paler and more fulvous on the outer web of the primaries, 

 the innermost secondaries mottled and barred with sandy rufous, and 

 resembling the scapulars ; tail blackish brown, with seven feebly indi- 

 cated narrow bars of sandy rufous ; head and neck decidedly clearer 

 than the back, and somewhat inclining to chestnut, the feathers black 

 in the centre, and laterally barred with the same, giving a generally 

 barred appearance to these parts ; lores and sides of face bright bay, 

 the loral plumes blackish at tip, and the ear-coverts with a few indis- 

 tinct cross bars of black ; over the eye a few white-barred feathers, 

 forming a faint eyebrow ; ear-tufts lighter than the crown, orange 

 rufous, broadly barred with black at the tips ; under surface of body 

 sandy rufous, many of the feathers coarsely vermiculated with black, 

 the breast-feathers streaked and laterally barred with black, these black 

 markings less distinct on the flanks and abdomen, on which parts are 

 tolerably distinct bars of white ; leg-feathers bright orange-rufous, with 

 a few narrow brown bars on the tibia ; under tail-coverts white, barred 

 across with sandy rufous; under wing-coverts fulvous, thickly mottled 

 with brown near the outer edge of the wing, which is white, the lower 

 series dark brown, like the inner lining of the quills; bill yellowish; 



