no Field Museum of Natural History — Zoology, Vol. XIII. 



Electron carinatus viridis Ridgway. Costa rica keel-billed Motmot. 

 Electron carinatus viridis Ridgway, Proc. Biol. Soc. Wash., XXV, 19 12, p. 89 



(La Vijagua, northwestern Costa Rica). 



Range: Northwestern Costa Rica. ' 



Genus EUMOMOTA Sclater. 



Eumomota Sclater, Proc. Zool. Soc. Lond., 1857, p. 257 (Type Prionites super- 



ciliosus Sandbach). 



*Eumomota superciliosa superciliosa {Sandbach). Turquoise-browed 



Motmot. 



P\yionites\ superciliosus Sandbach, Athenaeuim, 1837, No. 517, p. 698 (Mexico). 



Eumomota superciliaris Sharpe, Cat. Bds. Brit. Mus., XVII, 1892, p. 317, part. 



Eumomota superciliosa superciliosa Ridgway, Bull. U. S. Nat. Mus., No. 50, VI, 



1914, p. 478. 

 Range: Yucatan and Cozumel Island, Campeche and Tobasco. 

 2 : Yucatan. 



Eumomota superciliosa bipartita Ridgway. Green-breasted Tur- 

 quoise-browed Motmot. 



Eumomota superciliaris bipartitus Ridgway, Proc. Biol. Soc. Wash., XXV, 1912, 



p. 90 (Cacoprieto, Oaxaca, Mexico). 

 Eumomota superciliosa bipartitus Ridgway, Bull. U. S. Nat. Mus., No. 50, VI, 



1914, p. 480. 



Range: Southern Mexico, Guatemala and Honduras. 

 S : Guatemala. 



*Eumomota superciliosa australis Bangs. Southern Turouoise- 

 BROWED Motmot. 

 Eumomota superciliosa australis Bangs, Proc. Biol. Soc. Wash., XIX, 1906, p. 104 

 (Bebedero, northwestern Costa Rica). 

 Eumomota superciliosa australis Ridgway, Bull. U. S. Nat. Mus., No. 50, VI, 

 1914, p. 481. 



Range : Northwestern Costa Rica, western Nicaragua and Salvador 

 6: Nicaragua 5; and Salvador i. 



Genus MOMOTUS Brisson. 



Momotus Brisson, Om. IV, 1760, p. 465 (Type Ramphastos momota Linn.). 



*Momotus momota momota {Linn.). Common Motmot. 



Ramphastos momota Linnaeus, Syst. Nat., I, ed. 12, 1766, p. 152 (Cayenne). 

 Momotus momota Sharpe, Cat. Bds. Brit. Mus., XVII, 1892, p. 319; Goeldi, 

 Alb. de Aves Amazon, pt. 3, 1905-06, pi. 28, Fig. i. 



Range: Guiana and north Brazil. 

 3 : British Guiana. 



