PASSEKES-TUKDIDAE HAEPOKHYNCHUS EUFUS. 155 



decided differences, which seem to indicate that the true relationship of this 

 form is with the H. cinereus of Cape Saint Lucas, as was strongly hinted 

 by Dr. Coues in his description referred to above ; and, furthermore, that 

 it is separable from the Cape Saint Lucas Thrush only as a variety. It 

 may be remarked that the two specimens in the Smithsonian are in the 

 worn summer dress, and have all the faded appearance peculiar to that 

 plumage, while the specimens taken by myself are in the freshly assumed 

 fall dress. They thus have a prevailing ashy tinge, particularly above ; this 

 being peculiar to the autumnal plumage, and strictly coincident with the 

 like seasonal changes to be seen in the Palmer's Thrush (var. palmeri) of 

 the same locality. In the types, the markings below are very faint, being 

 just perceptible ; while, in the specimens before me, the arrow-shaped spots 

 on the lower throat and breast are very conspicuous, and in their character 

 show a decided approach to the markings of the true cinereus. The varia- 

 tion in curvature of bill in the three specimens is quite considerable ; the 

 bill in one being as much curved as in many examples of cinereus. In each 

 case, however, as shown also in the two types, the bill is considerably 

 shorter than is ever found to be the case in cinereus. The same striking 

 difference in the length of bill is seen in var. palmeri, of the same region, 

 when compared with the true curvirostris. The color of the lower mandible 

 light brown, sometimes almost flesh color at base, dark at tip, a salient 

 point of distinction is common to both cinereus and lendieri, and to them 

 alone ; all the other species, so far as I am aware, having a black unicolored 

 bill. 



The wide separation of the two forms in question, and the fact that 

 the Cape Saint Lucas bird is restricted to the coast, while the Bendire's 

 Thrush inhabits the dry, almost waterless, plains of the interior, will suf- 

 ficiently account for the discrepancies between them. 



The Bendire's Thrush seems to be a rather rare inhabitant, as compared 

 at least with its congeners, the Palmer's and Crissal Thrush of the wild 

 cactus covered desert in the vicinity of Camp Lowell, Ariz. Elsewhere, it 

 has not been met with, and, though I looked most carefully for it, I did not 

 detect its presence till I reached this neighborhood, and upon leaving here, 

 on my way north, the species was immediately lost sight of. The speci- 



