138 Field Museum of Natural History — Zoology, Vol. XIII. 



of Plains in Montana, Dakota, New Mexico, etc., south to Florida and 

 southeastern Texas, and in winter to southeastern Mexico and Guate- 

 mala. 



tu: Maine i; Massachusetts i; Illinois 2; Wisconsin 6; Texas 3; 



and Mexico (Puebla, Vera Cruz) i. 



♦Chaetura richmondi Ridgway. Richmond's Swift. 



Chaetura richmondi Ridgway, Proc. Biol. Soc. Wash., XXIII, 1910, p. 53 

 (Guayabo, Costa Rica); Ridgway, Bull. U. S. Nat. Mus., No. 50, V, 1911, 

 p. 719- 

 Range: Southeastern Mexico south to Costa Rica and western 

 Panama (Chiriqui). 



4: Guatemala 2; and Costa Rica 2. 



*Chaetiira gaumeri Lawrence. Gaumer's Swift. 



Chaetura gaumeri Lawrence, Ann. N. Y. Acad. Sci., II, 1882, p. 245 (Yucatan); 

 Hartert, Cat. Bds. Brit. Mus., XVI, 1892, p. 482, part; Ridgway, Bull. U. S. 

 Nat. Mus., No. 50, V, 1911, p. 721. 



Range: Yucatan and Coztmiel Island. 

 3: Yucatan (Coztmiel Island). 



♦Chaetura vauxii (Townsend). Vaux's Swift. 



Cypselus vauxii Townsend, Journ. Ac. Nat. Sci. Phila., VIII, 1839, p. 48 (Fort 



Vancouver, Colombia River, State of Washington). 

 Chaetura vauxi Hartert, Cat. Bds. Brit. Mus., XVI, 1892, p. 481. 

 Chaetura vauxii Ridgwey, Bull. U. S. Nat. Mus., No. 50, V, 191 1, p. 722. 



Range: Western North America, from southern Alaska, east to 

 Montana and Nevada, south to Lower California and Mexico to Guate- 

 mala; Honduras? 



9 : California 4 ; Mexico i ; and Guatemala 4. 



*Chaetura acuta {Gmel.). Martinique Swift. 



Hirundo acuta Gmelin, Syst. Nat., I, 1789, p. 1023 (Martinique). 



Chaetura acuta Hartert, Cat. Bds. Brit. Mus., XVI, 1892, p. 486, Cory; Cat. 

 West Indian Birds, 1892, p. 106-143; Ridgway, Bull. U. S. Nat. Mus., No. 50, 

 V, 191 1, p. 724; Noble, Bull. Mus. Comp. Zool., Vol. LX, 1916, p. 378. 



Chaetura dominica Cory, Auk, 1886, p. 346; Id., Bds. West Indies, 1889, p. 141. 



Range: Islands of Guadeloupe, Dominica, Martinique, St. Vincent 

 and Santa Lucia, Lesser Antilles. 



2: St. Lucia i; and Guadeloupe i. 



*Chaetura spinicauda (Temtninck) . Spine-tailed Swift. 



Hirundo spinicauda Temminck, Catal. N. & Amlyst. Vog. Johan. Sonnenb. 

 Galant, 18 10, p. 13 (Cayenne). 



Chaetura spinicauda Hartert, Cat. Bds. Brit. Mus., XVI, 1892, p. 483; Ridg- 

 way, Bull. U. S. Nat. Mus., No. 50, V, 191 1, p. 716, in key. 



