304 University of California Publications in Zoology [Vol. 24 



sequoiensis (E. M. Anderson, 1915a, p. 17). I cannot agree with this 

 determination, as applied to the Telegraph Creek series. These birds 

 are not the same as the hermit thrush of the Sierra Nevada of Cali- 

 fornia {sequoiensis). They are appreciably smaller than the latter 

 and they are not so gray. They come very close, both in color and 

 size, to a series of guttata, from Prince "William Sound, Alaska, being 

 perhaps a trifle paler colored. They are quite diJBferent in appearance 

 from the dark colored nanus, of the coast region of southern Alaska. 



TABLE XIII 

 Measurements in millimeters of Hylodchla guttata guttata and Hylodchla guttata 



Hylodchla guttata guttata Wing Tail Culmen Tarsua 



40312 cf Telegraph Creek, B. C, June 4, 1919 89 69 13 28.5 



40313 cf Telegraph Creek, B. C, June 4, 1919 87 69.5 12 28.5 



40310 9 Telegraph Creek, B. C, June 1, 1919 84 67 12 29 



40311 9 Telegraph Creek, B. C, June 4, 1919 83 66 12 28.5 

 40309 9 Telegraph Creek, B. C, May 26, 1919 85 66.5 12 26.5 



Hylodchla guttata sequoiensis 



22668 cf Independence,InyoCo., Cal., May9, 1912 94 72 14 30 



22669 cf Kearsarge Pass, Inyo Co., Cal., June 12, 1912 97 72 14 30 



22670 cf KearsargePass,InyoCo., Cal., Junel3, 1912 97 75 13 27.5 



22671 9 KearsargePass, Inyo Co., Cal., June 15, 1912 91 70 14 30 



Hylocichla guttata nanus (Audubon). Dwarf Hermit Thrush 

 The hermit thrush appears to range the whole length of the Stikine 

 Valley; it is one of the few species of which we found specimens at 

 intermediate points the characters of which indicate a likelihood of 

 intergradation in that region between the two unlike subspecies at the 

 two ends of the stream. A specimen taken at Flood Glacier on July 27 

 (no. 40314), an adult female not yet beginning to molt, is inter- 

 mediate in color between the gray Telegraph Creek specimens and 

 the dark colored birds of the coast. Despite the lateness of the season 

 and the consequent greater wear upon the plumage, it is still appre- 

 ciably browner than the Telegraph Creek birds. On the whole, it 

 seems best regarded as tmnus, though not typical of that form. A 

 young bird (no. 40315) from Great Glacier, August 11, in the juvenal 

 plumage throughout, is referred to nanus. 



