398 U.S. NATIONAL MUSEUM BULLETIN 221 



altitude 3429 feet, about between Jacumba and Campo [Upper Cali- 

 fornia]," fide GrinneU, Univ. California Publ. Zool. 32: 26, 1928) , State 

 of Baja California, Mexico. June 5, 1894. Collected by Edgar A. 

 Mearns. Original number 10986. Mexican-United States International 

 Boundary Commission. 

 Thryomanes brevicauda Ridgway 



Bull. U.S. Geol. and Geogr. Surv. Terr. 2 (2) : 186, 1876. 

 =Thryomanes bewickii brevicauda Ridgway. See Hellmayr, Catalogue 



of birds of the Americas 7: 214, 1934. 

 70042. Adult (sex not indicated). Guadalupe Island (lat. 29°00' N., 

 long. 118°15' W.), eastern Pacific Ocean off the State of Baja Califor- 

 nia, Mexico. Mar. 2, 1875. Collected by Edward Palmer. Original 

 number 15. 

 No. 70041, a cotype with identical data, was sent to the Museum of Com- 

 parative Zoology on Dec. 26, 1929. 

 Thryomanes bewickii cryptus Oberholser 



Proc. U.S. Nat. Mus. 21:422 (in key), 425, Nov. 19, 1898. 

 112838. Adult male. San Antonio, Bexar County, Texas. Jan. 5, 1887. 

 Collected by Charles W. Beckham. Original number 2712. 

 Thryomanes bewickii percnus Oberholser 



Proc. U.S. Nat. Mus. 21: 422 (in key), 429, Nov. 19, 1898. 

 142993. Adult male. Etzatlan, State of Jalisco, Mexico. June 23, 1892. 

 Collected by Edward W. Nelson. Original number 196. Received from 

 the U.S. Fish and Wildlife Service. 

 Thryothorus Sissonii Grayson 



The California Farmer and Journal of Useful Sciences 29 ( 1 ) : 7, Jan. 

 9, 1868. 

 Troglodytes insularis "Baird, MS." Lawrence 



Ann. Lye. Nat. Hist. New York 10 (1-3) : 3, February-March 1871. 

 =Thryomanes sissonii (Grayson). See HeUmayr, Catalogue of birds of 

 the Americas 7: 215 (footnote 3), 1934; Taylor, Condor 53: 197, 1951. 

 39991. Adult (sex not indicated) . Socorro Island, Revilla Gigedo Islands, 

 eastern Pacific Ocean off Mexico. June 1865. Collected by Andrew J. 

 Grayson. Original number — . 



50810. Adult male. Same data as No. 39991. Original number 397. 



50811. Adult (sex not indicated). Same data as No. 39991. Original 

 number 397. 



50812. Adult male. Same data as No. 39991. Original number 397. 



50813. Adult (sex not indicated). Same data as No. 39991. Original 

 number 397. 



50815. Adult (sex not indicated). Same data as No. 39991. Original 



number 397. 

 58259. Adult male. Same data as No. 39991. Original number 397. 

 Taylor {op. cit., p. 196) found that Grayson had a total of 12 specimens, 

 all of which must be considered cotypes of Thryothorus Sissonii Grayson. 



