NO. 2 AVIFAUNA OF PLF.ISTOCRNE IN FLORIDA WETMORR 23 



ulnae, a metacarpal, and a tihio-tarsus from the head of the Itchtucknee 

 River, Columbia County, constitute definite record of this duck. Some 

 miscellaneous fragments from near St. Petersburg belong probably 

 to this species but cannot be certainly identified. There is also a 

 complete ulna from Saber-tooth Cave near Lecanto, collected in 1928 

 by W. W. Holmes. These form the only certain Pleistocene records 

 for this duck which is found in abundance in Florifla during winter 

 at the present time. 



ERISMATURA JAMAICENSIS (Gmelin) 



Ruddy duck 



Alias jatiiaicciisis rinielin, Syst. Nat., vol. i, pt. 2, 1789, p. 519. 



The ruddy duck is represented by a metacarpal collected near 

 \"enice by J. E. Moore. This species is a common visitor to Florida 

 during the winter. 



LOPHODYTES CUCULLATUS (Linnaeus) 



Hooded merganser 



Mcrgns cucuUatus Linnaeus, Syst. Nat., ed. 10, vol. i, 1758, p. 129. 



A humerus was obtained on the Itchtucknee River, Columbia 

 County, by Mr. and Mrs. H. H. Simpson. 



Order FALCONIFORMES 



Family CATHARTIDAE 



CATHARTES AURA AURA (Linnaeus) 



Mexican turkey vulture 



VultMr aura Linnaeus, Syst. Nat., ed. 10, vol. i, 1758, p. 86. 



In the Holmes collection from the Seminole Field there is the distal 

 end of a right tibio-tarsus and the shaft of a left coracoid of a turkey 

 vulture that are decidedly smaller than these bones in the modern 

 bird of the United States, but that agree exactly in dimension with a 

 specimen of the Mexican form from Matamoras. They are identified 

 as typical aura which is here first recorded from within the limits of 

 the United States, its modern range being from Mexico south to 

 Panama and Columbia, including Cuba and Jamaica. The transverse 

 breadth of the distal end of the ti1)io-tarsus in the Pleistocene speci- 

 men is ii.o mm. The modern specimen of mira from Matamoras 

 (U. S. N. M. 1442) is exactly similar. In a series of eight modern 

 birds of scptcntrionalis from Florida, Virginia, Maryland, and Penn- 



