1919. CATALOGUE OF BIRDS OF THE AMERICAS CORY. 395 



Range: Northwestern Brazil, Venezuela (Orinoco region), south- 

 eastern Colombia, Ecuador and Peru. 

 2: "Colombia." 



Argicus macrodactylus caurensis Cherrie.* CAURA RIVER LONG-TOED 



PUFF-BIRD. 



Argicus macrodactylus caurensis CHERRIE, Bull. Am. Mus. Nat. Hist., XXXV, 

 1916, p. 389 (La Union, Caura R., Venezuela). 



Range: Caura River Region, Venezuela. 



Genus NYSTACTES Gloger. 



Nystactes, Gloger in Froriep's Notizen, XVI, 1827, p. 277 (Type Bucco tamatia 



Gmelin). 

 Chaunornis Gray, List Gen. Bds., 1841, p. 13 (Type Bucco tamatia Gmelin). 



Nystactes noaname (Hellmayr). HELLMAYR'S PUFF-BIRD. 



Bucco noaname HELLMAYR, Bull. Brit. Orn. Club. XXV, 1909, p. 20 (Noanamd, 

 western Colombia); Id., Proc. Zool. Soc. Lond., 1911, p. 1195 (Noanamd; 

 Tado; Valley of the San Juan R., western Colombia). 



Nystactes noaname CHAPMAN, Bull. Am. Mus. Nat. Hist., XXXVI, 1917, p. 341 

 (Iguamiando, Quibdo, Colombia). 



Range: Valleys of the upper San Juan and Atrato rivers, western 

 Colombia. 



*Nystactes tamatia tamatia b (Gmelin). CAYENNE SPOTTED PUFF-BIRD. 



Bucco tamatia GMELIN, Syst. Nat., I, 1788, p. 405 (Cayenne); SCLATER, Mon. 



Jacamars and Puff-birds, 1882, p. 93, pi. 31; Id., Cat. Bds. Brit. Mus., XIX, 



1891, p. 188; BERLEPSCH and HARTERT, Nov. Zool., IX, 1902, p. 102 (Mai- 



pures, Orinoco R., Venezuela); BERLEPSCH, Nov. Zool., XV, 1909, p. 279 



(Cayenne); CHUBB, Bds. Brit. Guiana, I, 1916, p. 475. 

 Bucco tamatia tamatia HELLMAYR, Nov. Zool., XVII, 1910, pp. 391-392 (French 



Guiana; British Guiana; Surinam; Maipures; Venezuela; Upper Rio Negro; 



Manaos; Rio Branco; Borba, on right bank of Rio Madeira; Guapore R., 



Brazil). 



Argicus macrodactylus caurensis CHERRIE: Similar to A . m. macrodactylus, but 

 differs in having the under parts darker; the irregular, narrow, transverse, blackish 

 lines closer together and the white area back of the black breast band much reduced, 

 almost absolete; general color of breast and abdomen dusky olive brown (instead of 

 cinnamon buff). 



b Key to the Subspecies: 



A. Throat deep tawny ochraceous: 



a. Black spots on underparts less numerous and smaller. N. tamatia tamatia 

 (Cayenne, N. Brazil, etc.). 



b. Black spots on underparts more numerous and longer. N. tamatia hypnaleus 

 (N. E. Brazil). 



B. Throat buff: 



N. tamatia pulmentum (From west bank of Rio Madeira to E. Peru, E. Ecuador, 

 etc.). 



