28 



KORTH AMERICAN BIRDS. 



pale yellowish-bufl'; the axillars, inner wing-coverts, and sides of the breast similarly, but 

 rather more decidedly colored. The belly and edges of the crissal feathers are white, the 

 hinder parts of the flanks ashy. There is a distinct whitish stripe from the lores over 

 and a quarter of an inch behind the eye ; the lower eyelid is also white. The tail-feathers 

 are worn, but there is an indication of a narrow white tip. The feathers of the jugu- 

 lum, especially of the sides, are tipped with ashy like the back, as in immature specimens 

 of T. migralorius. The greater wing-coverts are tipped with dull white. The bill is yel- 

 lowish ; the upper mandible and the tip of lower tinged with dusky. The feet are pale 

 brown. 



The length cannot be given accurately, as the skin is much drawn u]). Tlie wing, how- 

 ever, measures 5.10 inches, its tip reaching 1.40 beyond the longest secondary ; tail, 4.10 ; 

 tarsus, 1.20; middle toe and claw, 1.07; exposed portion of culmen, .92; from tip to open 

 portion of nostrils, .60. 



Had. Todos Santos, Cape St. Lucas. 



The specimen with a jjeneral resemblance to an immature T. inigmtoriiis 

 (especially the western vtiriety) in the white superciliary streak and general 

 markings, is much lighter beneath than in any of the many skins of T. mi- 

 gratoriua examined ; there being none of the dark chestnut or cinnamon 

 shade, but rather a light buff ; the belly and flanks are mucli more purely 

 white. The superciliary stripe extends farther behind the eye ; indeed, in 

 most specimens of migratorius the white is nearly confined to the eyelids. 

 The bill and wings are rather longer than usual in migratorius ; the middle 

 toe, on the otlier liand, appears shorter. Nothing is on record in regard to 

 the habits of this bird. 



SuBGEN-us HESPEROCICHLA, Baird. 



ITcspcrocichla, Uairu, Kcv. Am. Cinl.s, I, Isiji, 12. (Type Turdiis 7ia;viiis, Gm.) 



The single species of this subgenus difiers in form from the Eobins {I'la- 



ncsticu.'i), in the more awl- 

 shaped Inll, the curved com- 

 missure, and tlie aljseiice of 

 a notch at the end; tlie long- 

 er, slenderer, and straighter 

 claws ; and in the dissimi- 

 larity in color of the sexes. 

 In the latter respects it 

 agrees with Mcrula of Eu- 

 rope and Middle America ; 

 in which, however, the bill 

 is distinctly notched, and 

 less attenuated. The tail is 

 shorter and broader than in 



Turilus navius. 



Planesticiis, more as in true Turd us or Hi/locichla. 



