TYPE SPECIMENS OF BIRDS 227 



[P(icus). scalaris] var. graysoni Baird 



in Baird, Brewer, and Ridgway, History of North American birds 2: 501 



(in key), 517, January 1874. 

 =Dendrocopos scalaris graysoni (Baird). See Oberholser, Proc. U.S. 



Nat. Mus. 41: 148, 1911; Peters, Checklist of birds of the world 6: 212, 



1948. 

 37351. Adult male. Tres Marias Islands, eastern Pacific Ocean ofi the 



State of Nayarit, Mexico. January 1865. Collected by Andrew J. 



Grayson. Original number 81. 



58224. Adult male. Tres Marias Islands, eastern Pacific Ocean off the 

 State of Nayarit, Mexico. Entered into the museum register on July 

 12, 1869. Collected by Andrew J. Grayson. Original number 79. 



No. 37351 bears a red type label, on which the name has been inscribed by 

 Ridgway's hand, but as in the case of D. s. sinaloensis, all adult males of the 

 original series must be considered cotypes. 



In addition to those listed above, the register indicates that there may 

 have been a third. No. 37349; this specimen has vanished without trace, 

 unless, as seems probable from the identity of all data, No. 58224 is the same 

 specimen reentered five years later. 

 D[ryobates]. scalaris sinaloensis Ridgway 



Manual North American birds, p. 285, September 27, 1887. 

 =Dendrocopos scalaris sinaloensis (Ridgway). See Van Rossem, Occas. 



Pap. Mus. Zool., Louisiana State Univ. 21: 139, 1945. 

 23812. Adult male. Mazatlan, State of Sinaloa, Mexico. June 1861. 

 Collected by John Xantus. Original number 27. 



58225. Adult male. Rio Mazatlan=Rio del Presidio, State of Sinaloa, 

 Mexico. Entered into the museum register on July 12, 1869. Col- 

 lected by Andrew J. Grayson. Original number 365. 



No. 58225 now bears a red type label, on which the name has been inscribed 

 by Ridgway's hand; reference to the first description shows, however, that 

 all adult males of the original series must be considered cotypes. 

 Dryobates scalaris agnus Oberholser 



Proc. U.S. Nat. Mus. 41 : 140 (in key) , 150, June 30, 1911. 

 =Dendrocopos scalaris sinaloensis (Ridgway) . See Van Rossem, Occas. 



Pap. Mus. Zool., Louisiana State Univ. 21: 139 (footnote 28), 1945. 

 164107. Adult male. Rio Mayo, at Camoa (lat. 27° 13' N., long. 109° 18' 

 W.), State of Sonora, Mexico. November 6, 1898. Collected by Ed- 

 ward A. Goldman. Original number 5953. Received from the U.S. 

 Fish and Wildlife Service. 

 Dryobates scalaris centrophilus Oberholser 



Proc. U.S. Nat. Mus. 41 : 140 (in key) , 157, June 30, 1911. 

 =Dendrocopos scalaris centrophilus (Oberholser). See Peters, Checklist 



of birds of the world 6: 212, 1948. 

 155991. Adult male. Ameca, State of Jalisco, Mexico. March 3, 1897. 



