BIRDS OF NORTH AND MIDDLE AMERICA. 105 



M[enda] confinis Ridgway, Man. N. Am. Birds, 1887, 578. — Coues, Key N. Am. 



Birds, 5th ed., i, 1903, 250. 

 Turdus migratorius (not of Linnaeus) Coues, Birds Northwest, 1874, 1, part (in 



synonymy). 

 Turdus (PlancsticMs) migratorius Coues, Birds Col.Val., 1878, 8, part (in synonymy) 



PLANESTICUS FLAVIROSTRIS (Swainson). 

 MAZATLAN ROBIN. 



Adult male. — Head and neck (except lores, chin, and throat) 

 brownish gray, the forehead and crown more or less strongly washed 

 with brown (especially in whiter plumage) and the feathers with darker 

 shaft-streaks; lores dusky or grayish black; feathers of auricular 

 region with very narrow whitish shaft-streaks; back, scapulars, and 

 wing-coverts plain cinnamon-brown or russet; rump, uppe rtail-coverts 

 and secondaries plain slate-gray, the latter tinged with olive; pri- 

 maries and rectrices dusky slate-gray or dull slate color, with pale 

 slate-gray edgings; malar region streaked white, grayish, and dusky; 

 chin and throat white sharply streaked with slate-blackish, the upper 

 chest similarly streaked on a grayish or dull tawny ground; chest, 

 breast, sides, flanks, axillars, and under wing-coverts plain tawny- 

 ochraceous; abdomen, hinder flanks, anal region, and under tail- 

 coverts immaculate white, the last with basal (concealed) portion 

 partly gray; bill yellow, sometimes brownish or dusky at tip; iris 

 brown ; legs and feet pale yellowish brown (in dried skins) ; length 

 (skins), 217-250 (232) ; wing, 119-133.5 (126.1); tail, ~ 92.5- 105.5 

 (100.6); exposed culmen, 19-22.5 (20.5); tarsus, 30.5-34 (31.9); 

 middle toe, 19-22 (20.7). « 



Adult female. — Very similar to the adult male and often not dis- 

 tinguishable, but iisually (?) very slightly duller in color; length 

 (skins), 223-235 (228); wing, 116.5-128.5 (122); tail, 91-106 (98.1); 

 exposed culmen, 19-22.5 (20.7); tarsus, 30.5-32 (31.4); middle toe, 

 19.5-22 (20.4).'' 



Western and southwestern Mexico, in States of Sinaloa (JVIazatlan), 

 Jalisco, Colima (Manzanillo; Plains of Colima), Michoacan (Ahua- 

 cana), Mexico (Temascaltepec), Durango (Chacala), Guerrero 

 (Acapulco; Egido Nuevo), Oaxaca (Tehuantepec ; San Juan del Rio), 

 and Puebla (Chietla; Chiantla; Piaxtla). 



Mernla flavirostris (not Turdus flavirostris Horsfield, 1821) c Swainson, Philos. 

 Mag., n. s., i, 1827, 369 (Temascaltepec, Mexico). — Ferrari-Perez, Proc, 

 U. S. Nat. Mus., ix, 1886, 132 (Chietla and Chiantla, Puebla). 



M[enda] flavirostris Ridgway, Man. N. Am. Birds, 1887, 578. 



T[}irdus] flavirostris Gray, Gen. Birds, i, 1847, 220. 



a Ten specimens. 



b Eight specimens. 



c Turdjis flavirostris Horsfield, Trans. Linn. Soc. Lond., sor. i, xiii, pt. i, May, 

 1821, 149 (Java). 



