90 The Ohio Journal of Science [Vol. XVIII, No. 3, 



breeding birds at Chester and Stuttgart, in Arkansas, which 

 are for all practical purposes topotypes, and these belong 

 unquestionably to the eastern form. From the above facts it 

 is reasonably certain that Nos. 1865 and 1866 of the United 

 States National Museum catalogue are the original specimens 

 collected by Audubon near the Arkansas River, and that they 

 came into Baird's possession and were duly entered by him in his 

 catalogue. Since in size and color the one now marked No. 

 1865 in the United States National Museum collection is 

 found to agree substantially with Audubon's original descrip- 

 tion, it may reasonably and properly be considered the type. 



The second specimen marked as one of the types in the 

 United States National Museum, and considered as such 

 by Mr. Brewster, is an adult and bears on its original label 

 in Baird's own handwriting the following inscription: 



Tyrannula trailli? Aud 

 2960 n 



This individual was evidently later received from Audubon 

 by Professor Baird, as it was not entered in the catalogue until 

 May, 1846, and then among a lot of other birds from the 

 Columbia River received from Mr. J. K. Townsend. It will be 

 noticed that the specimen was doubtfiilly identified by Professor 

 Baird as traillii; and it was, without any reasonable doubt, 

 one of the Columbia River examples obtained by Audubon from 

 J. K. Townsend after the species was described.! That the 

 Columbia River was its origin is further borne out by the fact 

 that it is not subspecificially the same as the specimen here 

 considered the type (No. 1865, U. S. Nat. Mus.), but is identical, 

 as it should be, with birds from western Washington. It is 

 apparently a female, though not sexed, and measures as follows: 

 wing, 66 mm.; tail, 53; exposed culmen, 10.3; tarsus, 16; middle 

 toe without claw, 9.5. 



The third specimen mentioned by Mr. Brewster, No. 2039, 

 U. S. Nat. Mus., is, as he states, in juvenal plumage, and was 

 received by Professor Baird also from Audubon. It is, how- 

 ever, clearly an immature specimen of the Columbia River 

 bird. 



jCf. Birds Amcr., I, octavo ed., 1840, p. 23.5. 



