6. PARTJXA. 263 



axillaries and under wing-coverts white: ([iiills dusky below, ashy 

 white along the edge of the inner web. Total length ■4-2 inches, 

 culmeu 0"45, wing 2-lo, tail 1-75, tarsus 0'75. 



Aih(Jt female. Not distinguishable from the male. Total length 

 4'2 inches, culmen 0-5, wing 2'15, tail 1*8, tarsus 0'7. {Mus. Salvin 

 and God man.) 



Hah. Tres Marias and Socorro Islands. 



a. Ad.sk. Tres Marias Islands, April 8 (^.i^o;vw)- Sclater Collection. 



4. Parula gutturalis. 



Compsothlypis gutturalis, Cab. J. f. O. 1860, p. 329. 



Parula gutturalis, Baird, Review Amer. B. p. 172 (1865) ; Laior. Ann. 



Lye. X. Y. ix. p. 93 (1868) ; Von Frantz. J. f. 0. 1869, p. 292 ; 



Salv. P. Z. S. 1870,p.l82; Scl.8,-Sah. Nomencl. Av. Neotr.^. 8 (1873); 



Salv. ^-Godm. Biol. Centr.-Amer., Aves, i. p. 123, pi. viii. fig. 3 (1880) . 

 Mniotilta gutturalis, Grmj, Hand-l. B. i. p. 238. no. 3452 (1869). 

 Oreothlypis guttiualis, Stejn. Auk, 1884, p. 169. 



Adult male. General colour above slaty grey, the mantle and 

 upper back black, the feathers being broadly tipped with the latter ; 

 scapulars and lesser w^ng-coverts slaty grey ; greater series blackish, 

 externally slaty grey, rather more hoary than the back ; bastard- 

 wing and primai-y-coverts blackish, narrowly margined with slaty 

 grey ; quills blackish, externally slaty grey, more hoary on the outer 

 web of the primaries, the first of which is narrowly margined 

 with whitish ; centre tail-feathers grey, with a longitudinal centre : 

 the remainder of tail-feathers blackish, externally ashy grey, nar- 

 roA\iy fringed with white on the edge of the inner web ; head and 

 hind neck slaty grey, the latter slightly paler, as also the sides of the 

 neck ; lores, feathers round the eye, and ear-coverts slaty black ; 

 above the latter a faint indication of a grej'ish-white superciliary line ; 

 cheeks, throat, and chest beautiful orange-yellow ; breast and ab- 

 domen white ; sides of body and flanks delicate ashy grey ; thighs 

 ashy ; under taU-coverts white, the long ones ashy with white 

 margins ; under wing-coverts and axillaries white, ashy near the 

 end of the wing ; quills blackish below, ashy white along the inner 

 web: " bill black ; feet lead-colour" (Salrin ^' Godman). Total 

 length 4-8 inches, culmen 0-55, wing 2'5, tail 1'95, tarsus 0*7. 



Adidt female. Differs from the male in being duller slaty grey 

 above, with the black on the mantle much more restricted ; orange- 

 yellow coloiir on the throat somewhat paler. Total length 5 inches, 

 culmeu 0-55, wing 2-4, tail 1-9, tarsus 0-7. {Mus. Salvin and 

 Godman.) 



Younrj. Duller grey than the adidt female and somewhat washed 

 with olive-brown ; wing-coverts tipped wath olive ; throat and chest 

 dull yellow, intermixed with brown (the latter probably remains of 

 first plumage) ; breast and abdomen dull white ; the sides of the 

 body ashy. 



Hah. Central America ; Costa Rica and Panama. 



a. (J ad. sk. Yolcan de Chiriqui, Veragua {Arce). Sclater Collection. 



b. Ad. sk. Chiriqui, Veragua {Arce). Sclater Collection. 



