340 Bulletin American Museum of Natural History. [Vol. XXXVI, 



(1610) Notharcus hyperrhynchus leucocrissus (Scl.). 



Bucco leucocrissus Scl., P. Z. S., 1860,p. 284 (Babahoyo, w. Ecuador). 



Represented by two specimens from Honda. These appear to agree 

 with one from Chone, western Ecuador (which may be considered topo- 

 typical of leucocrissus) two from the Panama R. R. Line (McLeannan and 

 Galbraith) and one from Tapahza, eastern Panama, and differ from six Nica- 

 raguan specimens, which I assume represent dysoni, in having the pectoral 

 band conspicuously wider, the flanks more heavily barred, the margins to 

 the rectrices narrower, more sharply defined and less extended down the 

 inner vane, the outer primary black at the tip, instead of narrowly margined 

 with white. The material in question clearly represents two forms, for the 

 more southern of which the name leucocrissus (Scl.) appears to be applicable; 

 but a specimen from Tehuantepec agrees more nearly with leucocrissus in 

 the markings of rectrices and outer primary, though in flanks and pectoral 

 band it is like dysoni, and a specimen from El Pilar, northeastern Venezuela, 

 seems to be near leucocrissus though the pectoral band is evidently widened 

 by the make of the skin. A specimen said to be from Para, has the bill 

 larger (culmen 46 mm.) than in any of those above-mentioned, while the 

 pectoral band is as narrow as in dysoni and the flanks heavily barred as in 

 the Honda and Panama specimens. Doubtless it represents N. h. hyper- 

 rhynchus. 



Honda, 2. 



(1613) Notharcus pectoralis (Gray). 



Bucco pectoralis Gkay, Gen. Birds, I, 1846, p. 74, pi. XXVI (So. Am.)- Wyatt, 

 Ibis, 1871, p. 374 (Naranjo) ; Scl. & Salv., P. Z. S., 1879, p. 536 (Neche) ; Hellmayb, 

 P. Z. S., 1911, p. 1194 (Ndvita; Noanamd). 



Inhabits the Tropical Zone of the Paciflc coast and eastward, and to the 

 lower Cauca and humid Magdalena Valleys. 



Bagado, 1; Barbacoas, 7; Puerto Valdi via, 4; Nare, lower Magdalena, 1. 



(1617) Notharcus tectus subtectus {Scl). 



Bucco subtectus Scl., P. Z. S., 1860, p. 296 (Esmeraldas, Ecuador); Scl. & Salv., 

 P. Z. S., 1879, p. 536 (Nech6); Robinson, Flying Trip, (R. Magdalena). 

 Bucco tectus subtectus Hellm., P. Z. S., 1911, p. 1195 (Tad6). 



Like Notharcus pectoralis this species inhabits the Tropical Zone of the 

 Pacific coast, lower Cauca and humid Magdalena Valleys. Specimens from 



