COUES KEY, 1884. 
25. Harporhynchus crissalis. 
30. Cinclus mexicanus. 
26. Saxicola cenanthe. 
APPENDIX. 
UNION LIST, 1886. 
712. Harporhynchus crissalis. 
701. Cinclus mexicanus. 
765. Saxicola cenanthe. 
27. Sialia sialis. 766. Sialia sialis. 
766a. Sialia sialis azurea. 
27 bis. Add: Sialia sialis azurea. AzuRE BiuEBirp. Similar to S. sialis; the blue 
of a greenish shade, and the tail upward of 3.00. Southern Arizona and southward. A slight 
variety, scarcely recognizable. 
28. Sialia mexicana. 767, Sialia mexicana. 
29. arctica. 768. arctica. 
31. Cyanecula suecica. .| [764.] Cyanecula suecica. 
32. Phylloscopus borealis. 747, Phyllopseustes borealis. 
33. Regulus calendula. 749. Regulus calendula. 
750 obscurus, 
33 bis. Add: Regulus calendula obscurus. Dusky Kineiet. Resembling the com- 
mon ruby-crown, but with darker and more plumbeous shade of the upper parts, and some. 
slight differencesin proportions. A dark insular form described from Guadalupe Island, Lower 
California, Since the publication of the Key, the A. O. U. Committee has decided to 
include ‘“‘ Lower California, with the islands naturally belonging thereto,” in the “ North 
American” avifauna,—a decision in which I concur. (Code, p. 14.) 
34. Regulus satrapa. 748. Regulus satrapa. 
35. satrapa olivaceus? 748a. satrapa olivaceus. 
86. Polioptila ccerulea. 751. Polioptila cerulea. 
37. melanura. 758. californica. 
38. plumbea. 752. plumbea. 
39. Chamea fasciata. 742. Chamea fasciata, 
39a. fasciata henshawi. 742a. fasciata henshawi. 
40. Lophophanes bicolor. 731. Parus bicolor. 
000. [Not in the List.] 
40bis. Add: Lophophanes bicolor texensis. Texan Turtep Tirmovuss. Paler 
than the last, with chestnut instead of black frontlet at base of crest; this chestnut corres- 
ponding in tint to that which suffuses the sides of the body. ‘Tarsus 0.85; bill 0.45. 
Southern Texas. The Auk, Jan. 1887, p. 29. 
41. Lophophanes inornatus. 
733. Parus inornatus. 
733a. Parus inornatus griseus. 
41 bis. Add: Lophophanes inornatus griseus. Gray Titmouse. Said to differ from 
ordinary inornatus in rather larger size and decidedly grayer color. Wing 2.90; tail 2.55. 
Middle Province of the United States; Colorado, Utah, Nevada, New Mexico, and Arizona. 
Pr. U. S. Nat. Mus., v., 1882, p. 344. 
| 733). Parus inornatus cineraceus. 
41 ter. ddd: Lophophanes inornatus cineraceus. Asuy Trrmovuser. Another alleged 
local race, described as even grayer above and paler below than ZL. i. griseus, with smaller 
bill, black in color. Lower California. Pr. U. S. Nat. Mus., vi., Oct. 1883, p. 154. 
42. Lophophanes atrocristatus. 732. Parus atricristatus. _ 
000. [Not in the List.] 
42 bis. Add: Lophophanes atrocristatus castaneifrons. CHESTNUT-FRONTED TiT- 
mMousE. Resembling the last: upper parts plumbeous, faintly tinged with olive; under 
