182 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



mm. of the terminal portion and about 5.1 mm. of the basal iwrtion of 

 the frontal shield (extending forward laterally) dull yellowish (orange 

 in life?); naked skin of forehead and cheeks light-colored (pinkish or 

 flesh-colored in life?); legs and feet black. 



Adult ma^e.— Length (skin), about 533.5; wing, 270.6; tail, 203.2; 

 culmen, 85.9; greatest width of culmen near base, 21.6; depth of bill 

 at base, 35.6; tarsus, 61.5; middle toe, 43.7. 



Northern Colombia (Rio Truando). 



Ostinops gualimozinus (not of Bonaparte) Cassin, Proc. Ac. Nat. Sci. Phila., 1860, 

 138, 139 (Rio Truando, n. Colombia; descr. ; crit. ). 



Casdcu8 guatimozinus Cassin, Proc. Ac. Nat. Sci. Phila., 1867, 71, part (Rio 

 Truando). 



Gymnostinops gvMimozinus Sai,vjh and Godman, Biol. Centr.-Am., Aves, i, 1886, 

 439, part (Rio Truando). 



Qymnostinops cassini Richmond, Auk, xv, Oct., 1898, 327 (Rio Truando, n. Colom- 

 bia; coll. U. S. Nat. Mus.). 



GYMNOSTINOPS GUATIMOZINUS (Bonaparte). 

 BLACK OROFENSOLA. 



Adult male. — Head, neck, upper back, and entire under parts, 

 except under tail-coverts, uniform deep black, with a faint bluish 

 gloss; wings black, with innermost coverts dark chestnut or bay; 

 lower back and scapulars dark chestnut or bay, the feathers black 

 beneath surface; rump and upper tail-coverts black, tinged with dark 

 chestnut or bay; under tail-coverts similar, but the longer ones uni- 

 form bay ; bill black, with the tip yellowish for about 19. 1 mm. ; naked 

 skin on forehead light-colored (apparently pinkish or flesh-colored in 

 life), but that of cheeks duskj^; legs and feet black; length (skin), 

 about 463.6; wing, 261.6; tail, 207; culmen, 65.5; greatest width of 

 culmen near base, 13.2; depth of bill at base, 27.9; tarsus, 59.7; middle 

 toe, 41.1.' 



Adult female. — Much smaller than the male; similar in coloration, 

 but the black rather less intense; length (skin), 400.1; wing, 200.7; 

 tail, 153.7; culmen, 52.8; greatest width of culmen near base, 11.4; 

 depth of bill at base, 23.4; tarsus, 44.5; middle toe, 33.^ 



Northern Colombia (Guaripata; Turbo; lower Magdalena River; 

 Remedios, Antioquia). 



Ostinops gvMtimozinus Bonaparte, Compt. Rend., xxxvii, 1853, 833 (Guaripata, 

 Colombia); Notes Orn. Coll. Delattre, 1853, 10.— Sclater and Salvin, Proc. 

 Zool. See. Lond., 1879, 508 (Remedios, prov. Antioquia, Colombia; deacr. 

 eggs). — Sclater, Ibis, 1883, 149,, part (northeipi parts of Colombia; Guari- 

 pata; Remedios, Antioquia). 



guatemozinus Sclater and Salvin, Nom. A v. Neotr., 1873, o5. 



•No. 128113, U. S. Nat. Mus., Lower Magdalena River, Colombia, June 28, 1892; 

 Lieut. Wirt Robinson, U. S. A. 

 ''No. 17846, TJ. S. Nat. Mus., Turbo, northern Colombia; Dr. A. Schott. 



