BIRDS OF NORTH AND MIDDLE AMERICA. 



493 



flanks pale yellowish olive; under wing-coverts white; maxilla black; 

 mandible very pale ])rownish (yellowish in lifeO, u«ually dusky at tip; 

 iris brown; legs and feet deep horn brown (in dried skins). 



Adult .././/.'.-Length (skins), 107.9-111.8 (100.7); wing, 52.1-53.3 

 (52.6); tail, 46.7-4:8.3 (47.2); exposed culmen, 9.6-10.2 (9.9); tarsus, 

 17 8-19 (18.5); middle toe, 10.7-10.9 (10.8).^ 



Adult /^ma/.. -Length (skins), 110.5-114.3(112.3); wing, 52.1-53.3 

 (52.8); tail, 46.2-47 (46.7); exposed culmen, 9.9-10.2 (10.1); tarsus, 

 19-19.'3 (19.1); middle toe, 9.9-10.7 (10.2).^ 



Socorro Island, Revillagigedo group, northwestern Mexico. 

 Panda inmdarl. Lawrence, Ann. Lye. Nat. Hist. N. Y., x, 1871, 4, part (Socorro 

 Island n. w. Mexico); Proc. Best. Soc. N. H., xiv, 1871, 300 (Socorro); 

 Mem. Bost. Soc. N. H., i,1874, 269, part ( Socorro ).-Salvin and Godman, 

 BioL Centr.-Am., Aves, i, 1880, 121, part (Socorro).-SHARPE, Cat. Birdn 

 Brit. Mus., X, 1885, 643, part (Socorro). 

 IParula pitinyumi-] var. inmlaris Baird, Brexver, and Ridgway, Hist. M. Am. 



Birds, i, 1874, 207, part (Socorro) . 

 Panda pitiayumi inmlaris Ridgway, Proc. U. S. Nat. Mus., lu, Aug. 24, 1880, 



171 215 (Socorro); Nom. N. Am. Birds, 1881, no. 89. 

 {Panda pitiayumi.-] Subsp. y. Panda insularis Sharpe, Cat. Birds Brit. Mus., x, 



1885, 263, part (not description) . 

 Comvwihhmis inmlari>i Ste.ineger, Auk, i, 1884, 170, part. 

 Ciomp^othhiph-] graysonl Ridgway. Man. N. Am. Birds, 1887, 492 (Socorro 



Island, Revillagigedo Group, n. w. Mexico; coll. U. S. Nat. Mus ). 

 Compsothhipis gmysoni Ridgway, Man. N. Am. Birds, 1887, 592; 2d ed., 1896, 

 614. -TowNSEND, Proc. U. S. Nat. Mus., xiii, 1890, 135 (Socorro).-ANTHONY, 

 Auk, XV, 1898, 317 (Socorro). 



Genus PEUCEDRAMUS Coues. 



Peucedramus Coues, in Henshaw's Zool. Exped. W. 100th Merid., 1875, 201. 



(Tvpe, Si/lria olimcea Giraud. ) 

 Pmcedror.ius ' (emendation) Salvin and Godman, Biol. Centr.-Am., Aves, i, 



1881, 142. 



Similar to Dendrolca, but bill weaker, more subulate; tail more 

 deeply emarginate; a white spot at base of primaries in connection 

 with two white wing-bands. 



Bill much shorter than head, short-subulate, of uniform depth tor 

 most of its length, depressed basally, compressed terminally; subter- 

 minal notch of maxillarv tomium indistinct or obsolete. Kictal bristles 

 weak and few (only three distinct). Wing long, pointed; eighth, 

 seventh, and sixth primaries longest, the ninth but little shorter, equal 

 to or longer than fifth; wing-tip very long (longer than tarsus). Tail 

 equal to distance from l)end of wing to tips of secondaries, deeply 

 emarginate, the rectrices rather narrow. Tarsus about one-fourth as 

 long as wing, very slender, its scutella indistinct (fused on outer side); 

 middle toe, with claw, much shorter than tarsus; ba sal phalanx of 



~' iFour^ specimens. ' Three specimens. 



