320 



U. S. p. R R, EXP. AND SURVEYS — ZOOLOGY — GENERAL REPORT. 



This genus has a much narrower and more depressed bill than Ptilogonya. The feet are 

 similar, but [with more curved claws, and with no feathers on the upper part of the tarsus. The 

 first quill is much larger ; indeed it can scarcely be called spurious ; the fourth^ fifth, and sixth 

 are successively a little longer than the third ; the outer primaries not acuminate. The tail is 

 much broader, widening to the tip ; it is rounded, or graduated, instead of forked. The head has 

 a crest of narrow linear feathers, instead of a short, broad, and full one. 



CiCHLOPSIS NITENS, Baird. 



Ptilogonya nitens, SwAiwsoif, Anim. in Menag. 2JCent. 1838, 285. — Bonap. Consp. 1850, 335. — Heebmank, J. A. N. 



Sc. II, Jan. 1853, 263.— Cassin, Illust. I, 1854, 169 ; pi. xxix. 

 Lepturus gahatus, Lessoi;, Rev. Zool. 1849, 4 . 

 " Hypothymtjs nitens, Lafr. " 



Sp. Ch. — Head with an elongated occipital crest. E.tposed portion of spurious quill about half the length of the second, 

 which equals the secondaries ; sixth quill longest. Tail graduated. Male throughout of a uniform lustrous black, glossed with 

 green. Inner webs of the primaries white, except at the base, tips, and margins. Female, ash color, paler beneath ; the quills, 

 wing, and lower tail coverts and outer tail feathers edged with whitish ; rest of tail feathers blackish. Length of male, 7.75 ; 

 wing, 3.90; tail, 4.30. 



Hab. — Valley of Gila and southern Colorado to upper Rio Grande ; west to Fort Tejon ; east to Coahuila, Mexico. 



There is some difference in the size of specimens, one from the Colorado desert being con- 

 siderably smaller than 3964 from Coahuila. The female has the crest rather less conspicuous 

 than the male. 



List of ^ecimens. 



MYIADESTES, Swain son. 



Myiadesles, Swainson, Naturalist's Library. Flycatchers, 1838. Type Muscicapa armillata, Vieill. 



Ch. — Head not crested. Bill rather narrower than the length of the culmen ; much depressed ; somewhat attenuated at 

 the end ; lateral outline rather concave. Tarsi without feathers above or scutellae ; shorter than the middle toe. Hind toe 

 rather shorter than the outer lateral toe, which barely reaches the base of the middle claw. Tail and wings very long; the 

 former shorter, quite deeply forked, but the outer lateral feather abruptly graduated, and a little longer than the innermost ; 

 the featfiers all broad at the base, and tapering to the tip. Spurious primary nearly one-fourth the longest, (third ;) the second 

 a quarter of an inch les? than the longest. 



