1918. CATALOGUE OF BIRDS OF THE AMERICAS CORY. 127 



Nyctidromus albicollis gilvus* Bangs. BANGS PARAQUE. 



Nyctidromus albicollis gilvus BANGS, Proc. N. E. Zool. Club, III, 1902, p. 82 

 (Santa Marta, Colombia). 



Range: Colombia. 



Nyctidromus albicollis nelsoni Ridgway. NELSON PARAUQUE. 



Nyctidromus albicollis nelsoni RIDGWAY, Proc. Biol. Soc. Wash., XXV, 1912, 

 p. 90 (Colima, S. W. Mexico); Id., Bull. U. S. Nat. Mus., No. 50, VI, 1914, 

 P- 544- 



Range: Southwestern and western Mexico. 



Nyctidromus albicollis yucatanensis Nelson. YUCATAN PARAUQUE. 



Nyctidromus albicollis yucatanensis NELSON, Proc. Biol. Soc. Wash., XIV, 1901, 

 p. 171 (Tuncas, Yucatan) ; RIDGWAY, Bull. U. S. Nat. Mus., No. 50, VI, 1914, 

 P- 543- 



Range: Eastern Tobasco, Campeche, Yucatan, and North British 

 Honduras. 



Nyctidromus albicollis sumichrasti Ridgway. Sum CR AST'S PARA- 

 QUE. 



Nyctidromus albicollis sumichrasti RIDGWAY, Proc. Biol. Soc. Wash., XXV, 1912, 

 p. 91 (Frontera, Tobasco, S. Mexico); Id., Bull. U. S. Nat. Mus., No. 50, VI, 

 1914, p. 544. 



Range: Vera Cruz to Tobasco, southeastern Mexico. 



Nyctidromus albicollis insularis Nelson. TRES MARIAS PARAQUE. 



Nyctidromus albicollis insularis NELSON, Proc. Biol. Soc. Wash., XII, 1898, p. 9 

 (Maria Madre Island, Tres Marias Group, off western Mexico); RIDGWAY, 

 Bull. U. S. Nat. Mus., No. 50, VI, 1914, p. 545. 



Range: Tres Marias Islands, oS. western Mexico. 



*Nyctidromus albicollis merrilli Sennett. MERILL'S PARAQUE. 



Nyctidromus albicollis merrilli SENNETT, Auk, 1888, p. 44 (Nueces R., 

 Nueces, Texas); RIDGWAY, Bull. U. S. Nat. Mus., No. 50, VI, 1914, 

 p. 546. 



Range: Northeastern Mexico (Tamaulipas, etc.) north to lower 

 Rio Grande Valley and southern Gulf coast in Texas. In winter south 

 to Vera Cruz, Mexico. 



5: Texas (Loredo i, Cameron County i); Mexico (Matamoras i, 

 Chihuahua 2). 



Nyctidromus albicollis gilvus BANGS: Intermediate in coloration between N. a. 

 merrilli SENNETT and N. a. albicollis (GMEL.); upper parts paler and more grayish 

 than the latter. Doubtfully separable from N. a. albicollis; not recognized by 

 Ridgway. 



