12 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 85 



the jabiru, and to Dr. Hildegarde Howard, of the Los Angeles A'lu- 

 seum of History, Science and Art, for bones of Teratornis and 

 certain other important material for comparison. 



Mr. W. W. Holmes, in addition to his specimens which he has 

 most generously placed in the United States National Museum, has 

 supplied much important information both in letters and in personal 

 conversations. Ornithologists stand greatly indebted to him for the 

 care and effort that he has given to the collection of his material which 

 has caused such an increase in our knowledge of the fossil birds of 

 this area. Photographs illustrating the Seminole area and Saber- 

 tooth Cave were obtained from him. Thanks are due to Mr. J. E. 

 Moore for important specimens that he has forwarded for the national 

 collections. Dr. Thomas Barbour has kindly forwarded for study 

 material collected by C. P. Singleton. Dr. J. W. Gidley has furnished 

 data with regard to the deposits on the east coast and has supplied 

 certain photographs. Drawings illustrating this report have been 

 made by Mr. Sidney Prentice. 



ANNOTATED LIST 



Order COLYMBIFORMES 



Family COLYMBIDAE 



COLYMBUS AURITUS Linnaeus 



Horned grebe 



Colymbus auritus Linnaeus, Syst. Nat., ed. 10, vol. i, 1758, p. 135. 



In the Holmes collection from near St. Petersburg there are one 

 complete and several broken humeri. Part of another humerus is 

 contained in collections from the Itchtucknee River. Columbia County, 

 in the Florida State Geological Survey. All are similar to those of 

 the modem birds. The species is known previously from the Pleisto- 

 cene of Fossil Lake, Oregon, and from cavern deposits in Tennessee. 



PODILYMBUS PODICEPS (Linnaeus) 



Pied-billed grebe 



Colymbus podiccps Linnaeus, Syst. Nat., ed. 10, vol. i, 1758, p. 136. 



In the Holmes collection from the Seminole Field there are limb 

 bones of several individuals of this species which are similar to those 

 of modern individuals. Other bones are found in the series from the 

 Itchtucknee River, Columbia County, in the Florida State Geological 

 Survey. This grebe today ranges throughout North and South 



