APPENDIX. 607 
(77.) Page 459, after P, subis: 
61la. Progne subis hesperia Brewst. Western Martin. 
“Female differing from female subis in having the abdomen, anal region, 
crissum, and under tail-coverts pure white, nearly or quite immaculate, the 
throat, breast, flanks, forehead, fore part of crown, and nuchal collar grayish 
white, the feathers of the back and rump conspicuously edged with grayish 
or pale brown, the bend of the wing and the under wing-coverts mottled pro- 
fusely with whitish. Male indistinguishable from the male of subis. Hab, 
Southern California and Lower California. 
(78.) Page 470: In Természetrajzi Fiizetek, vol. ix. part 1, 1885, p. 85, Von 
Madarasz has described a new Vireo (V. forrert) from the Tres Marias Islands. 
It is said to resemble most nearly V. flavoviridis (Cass.), from which it differs 
chiefly in absence of the superciliary stripe and dark streak on sides of crown, 
the latter lighter gray, and the breast tinged with grayish, 
(79.) Page 473, under V. solitarius cassinii: 
629d. Vireo solitarius lucasanus Brewst. St. Lucas Solitary Vireo. 
“Smaller than V. s. cassinii, but with the bill (actually as well as relatively) 
longer and stouter, the sides and flanks much yellower. Young in autumn 
without brownish beneath and closely resembling the young of solitarius.” 
Hab. Lower California. 
(80.) Page 477, under V. huttoni: 
6326. Vireo huttoni obscurus AntHony. Dusky Vireo. 
Similar to V. huttoni, but darker, and averaging slightly smaller. Had. 
Pacific coast, from Oregon to Vancouver Island and mainland of British Co- 
lumbia, south to California in winter. 
(81.) Page 489, under H. celata lutescens: 
6460. Helminthophila celata sordida Towns. Dusky Warbler.‘ 
Similar to Z. c. lutescens, but decidedly darker; bill and feet larger, wing 
shorter. Hab. San Clemente Island, California (resident). 
1 Progne subia hesperia Brewsr., Descr. Sup. New B. from W. N. Am. and Mex. Jan. 31, 1889, 92; Auk, 
vi. April, 1889, 92. 
2 Vireo solitarius lucasanus Brewst., Descr. Seven Sup. New N. Am. B. Feb. 17, 1891, 147; Auk, viii. 
April, 1891, 147. 
3 Vireo huttoni obecurus ANTHONY, Zoe, Dec. 1890, 307.— Vireo huttont insularis Ruoaps, Auk, x. July, 
1893, 239. 
4 Helminthophila celata sordida Towns., Proc. U. S, Nat. Mus. xiii, 1890, 139, 
