16 PROCEEDINGS OF THE ACADEMY OF [1899. 



Psaltriparus miuimus (Towns.). 

 Par us minimus Towns. Jour. Acad. Nat. Sci. Phila., vii, p. 190. 



Apparently no specimens are extant. 

 Sialia mexicana occidentalis (Towns.). 



Sialia occidentalis Towns. Jour. Acad. Nat. Sci. vii, p. 188. 



Two specimens are in the U. S. National Mnseum : 



1,930 (U. S. N. M.). (^ Columbia river. J. K. Townsend. Type. 



2,949 (U. S. N. M.). 9 Columbia river. J. K. Townsend. 



John James Audubon. 



The history of the Townsend specimens has been explained above 

 and it only remains to speak of such others of Audubon's types 

 as have found their way to the Academy's collection. 



Two of these, Colaptes ayersii and Caprimulgus nuttallii, were 

 presented by Audubon himself in 1849. 



Columba trudeaui was obtained from J. G. Bell, and the others 

 were presented by Edward Harris in 1849, with the rest of his 

 collection. 



Cassin states that Harris' collection contains the types of Quis- 

 calus breweri, Sturnella neglecta, Fringilla harrisii, F. Uncolni,^'' 

 Alauda spraguel, Emberiza bairdii and Vireo belli. 



Of several of these latter, Audubon also gave specimens to Baird, 

 and it is a question which of these shall be designated as the 

 types. In the list below I have included both the Academy and 

 National Museum specimens in all such cases. 



Considering first the species based on Townsend' s collection, we 

 find that two of those credited to Audubon in Townsend' s list were 

 evidently so given by typographical error — Icterus gubernator and 

 Diomedia chlororhynca being already described by other authors. 



Icterus tricolor and Pica nuttalli (type 3,337, U.S.N.M.) were 

 based on Nuttall's specimens, and Picus gairdnerii apparently on 

 one received from Gairdner or Nuttall, while the following were 

 names based on account of birds that had been seen but not secured, 

 and have no standing except Caprimulgus nuttallii, which was 

 rediscovered by Audubon himself in 1843, and properly described: 

 Phalacroeorax leucurus. Picus pyrrhonotus. 



Phaktcrocorax leuconotus. Turdus townsendii. 



Phasianus americanus. Caprimulgus nuttallii. 



^'Probably Cassin's error. A specimen from the Upper Missouri was pre- 

 sented by Harris, but Audubon's type came from Labrador and seems to be 

 lost. 



