PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 473 



Mdiitarclim crassirostris, Cacax., J. f. O. 1855, 478.— Caban. & Heine, ]\Ius. Hcin. 



II. 1859, 80, footnote (Mexico). 

 Mcgarhiincluts crassirostris, Fixscii, Abli. Nat. Brem. 1870, 329 (IMazatlau). 

 "Muscicaj)a (jnaiho, Light., in Mas. Berol." (Caban. and Heine). 



Sp. Cn.—Lengtli, about O.oO; extent, 15.50; wiug-, 5.00-5.50; tail, 4.00- 

 4.50; bill, from nostril, .75-.81, depth at base .38-43, width .53-.()0. 

 Tail even, or verj^ slightly emarginated; two to three outer primaries 

 slightly narrowed at ends, and the edge of the inner web faintly sinuated 

 near the middle. Adult: Above, olivaceous-gray, the head darker, 

 approaching sepia-brown, especially on the auriculars ; wings and tail 

 darker and more brownish than the back, all the feathers faintly edged 

 with i)ale brownish. Malar region, chin, and throat pure white ; jugu- 

 lum i)ale ash-gray, tinged with light yellowish olive laterally and pos- 

 teriorly ; rest of lower parts, including lining of wing, clear, rather 

 pale sulphiu'-yellow. Crown with a concealed patch of clear lemon- 

 yellow. Bill l)rownish black; feet deep black; iris brown. Young: 

 Head pale ash-gray, tinged with light brown, the lores and auriculars 

 darker ; no colored x>atch on crown ; back similar to the head, but tinged 

 with olive-green; wing-feathers distinctly bordered with yellowish white 

 (tinged with jiale rusty on the coverts) ; tail-feathers edged with pale 

 yellowish fulvous, becoming more rusty around the terminal border of 

 the feathers. Lower parts as in the adult, but the abdomen, etc., mixed 

 with patches (new feathers) of bright lemon- or gamboge-yellow. 



Hab. — Mexico, including both coasts ; north to Orizaba and IMazatlan. 



Eemaeks. — This very strongly marked species is decidedly the most 

 robust member of the genus, although considerably inferior to T. mag- 

 nirob*'ris in general bulk. The bill is peculiarly stout, being almost as 

 deep as it is wide through the base, all its Outlines being more decidedly 

 convex than in any other species. 



Following is a list of specimens examined, with measurements : 



29401 



5l'807 

 STGL'l 

 57G2S 

 C00U6 

 52800 



XTnitecl States 



...<Io 



. . do 



...do 



. . do 



...do 



B. S 



Colima 



Mazatlan 



Teliuantepec . . . 

 ...do 



Mazatlan . 

 Orizaba . . 



Jan. —,1863 



Dec. 1, 1868 

 Nov. 24, 1808 



July 13, 1866 



5.!)0 



5.00 

 5.00 

 5.29 

 5.45 



4.50 

 4.00 

 4.20 

 4.10 

 4.10 

 4.35 



.75 

 .81 



.80 



.78 

 .72 

 .72 

 .78 

 .75 

 .75 



6.— TYRANNUS MELANCHOLICUS. 



a. mclancltoUcus. 



Suirlri Quazu, Azara, Apnnt. II, 1805, 152, No. 198. 



Tyrannus mclaiwhoUcus, Vieill., Nouv. Diet, xxxv, 1819, 48 (ex Azara, L c.) ; Enc. M<?th. 



II, 1823, 851.— D'Or.B. & Lafr., Mag. do Zool. 1837, 44.— D'Orb., Voy. Ois. 



1839,311.— BuEM., Th. Bras. II, 1858, 464; Eeis, La Plata, II, 1861,452.— 



Baird, B.N. Am. 1858, 176 (part— not descr.).— ScL., Catal. 1862, 235, No. 



14-13 (Brazil).— SCL. &Sai.v., P. Z. S. 1868, 142 (Bncnos Ajtcs); Norn. Neotr. 



1873, .53 (part). — Euler, J. f. 0. 18G7, 227(Brazil; de.scr. nesting, etc.). — Pei,z., 



Orn. Bras. 1871, 117 (S. Brazil; numerous localities). 



