52 Oberholser, Races of Toxostoma redivivum. [j^. 



A REVISION OF THE RACES OF TOXOSTOMA 

 REDIVIVUM (GAMBEL). 



BY HARRY C. OBERHOLSER. 



Four forms of Toxostoma redivivum have been described, but 

 at present only one is generally recognized. Both Mr. Robert 

 Ridgway and the writer have hitherto failed to distinguish more 

 than a single race, which we have considered coextensive with the 

 species; but this failure now proves to have been due to lack of 

 proper material. Dr. Joseph Grinnell, however, has recently 

 allowed three subspecies in California. 1 The identification of 

 newly collected material in the Biological Survey has led me to a 

 reexamination of the entire species. For this purpose a very 

 satisfactory number of specimens has been available, altogether 

 385, including the type and type series of Toxostoma redivivum Sono- 

 ma? Grinnell, also the types of Toxostoma redivivum redivivum, 

 Toxostoma redivivum pasadenense, and Toxostoma redivivum helvum. 

 For the use of these and much additional material the writer is 

 under obligation to the authorities of the United States National 

 Museum, the Academy of Natural Sciences of Philadelphia, the 

 American Museum of Natural History, and the Museum of Com- 

 parative Zoology; to Mr. John E. Thayer, Mr. William Brewster, 

 Mr. A. C. Bent, Dr. Joseph Grinnell, Dr. J. Dwight, and Dr. L. B. 

 Bishop. With these advantages it is now possible to recognize, 

 instead of a single form, three fairly well defined geographic races, 

 which are explained in the following paragraphs: 



Toxostoma redivivum redivivum (Gambel). 



Harpes rediviva Gambel, Proc. Acad. Nat. Sci. Phila., II, No. 10, August, 

 1845, p. 264 (near Monterey, California). 



Harporhynckus redivivus pasadenensis Grinnell, Auk, XV, No. 3, July, 

 1898, p. 237 (Pasadena, California). 



1 Pacific Coast Avifauna, No. 11, October 21, 1915, pp. 154-155; 'The Auk,' XXXIV, No. 

 4, October, 1917, pp. 427-433. 



