lO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I46 



Measurements. — Males (12 specimens), wing 514-546 (521), tail 

 252-271 (262), culmen from cere 22.6-26.1 (24.1), tarsus 62.4-71.0 



(65.7) mm. 



Females (6 specimens), wing 511-535 (523), tail 250-281 (260), 

 culmen from cere 23.7-25.3 (24.4), tarsus 64.0-68.7 (66.1) mm. 



Range. — From southern Colombia (where it appears to intergrade 

 with C. a. ruficoUis) south through the Andes, and the adjacent 

 valleys, in Ecuador, Peru (Lago Junin), and Bolivia (Cochabamba; 

 Choro) to southern Chile (Angol ; Temuco ; Puerto Montt; E^tre- 

 chos de Magallanes), western and southern Argentina (Tucuman; 

 La Rioja; western Mendoza; General Roca; Rio Negro). 



Remarks. — In central Colombia this form appears to intergrade 

 with C. a. ruficollis to produce a bird of smaller size, and browner, 

 less deeply black color on the body. Some specimens that come from 

 the interior of the Chaco in northwestern Paraguay also are similar 

 to these supposed intergrades in size and color. 



Molina's description has been allocated to this interior form so 

 that the designation by Swann (1921, p. 4) of Concepcion, on the 

 coast of Chile, as type locality is erroneous. The northern and also 

 the eastern limits of this subspecies remain to be clearly assigned. 



CATHARTES AURA FALKLANDICA (Sharpe) 



Catharista jalklandica Sharpe, Ann. Mag. Nat. Hist., ser. 4, vol. 11, no. 62, 

 Feb. 1873, p. 133. (Berkeley Sound, East Falkland, Falkland Islands.) 



Characters. — Similar to C. a. jota, but grayish edgings on wings 

 usually more extensive; size smaller. 



Measurements. — Males (5 from the Falkland Islands), wing 485- 

 508 (499), tail 250-265 (254), culmen from cere 23.5-25.1 (24.1), 

 tarsus 60.5-71.7 (67.1) mm. 



Males (7 from coastal areas and islands, Ecuador to Chile), wing 

 460-507 (485), tail 220-257 (240), culmen from cere 22.7-24.8 (23.9, 

 average of 6), tarsus 62.0-66.5 (65.3) mm. 



Females (3 from Falkland Islands), wing 505-510 (508), tail 

 258-272 (265), culmen from cere 23.7-26.9 (24.8), tarsus 65.3-69.0 



(66.8) mm. 



Females (3 from islands off Ecuador and Peru), wing 466-478 

 (474), tail 223-225 (224), culmen from cere 23.4-25.7 (24.6), tarsus 

 65.5-69.6 (68.1) mm. 



Range. — Falkland Islands ; north along the western coast of South 

 America to Chile (Isla Mocha, Penco), Peru (Talara, Islas de Chin- 

 cha), and Ecuador (Isla Jambeli, Isla La Plata). 



