500 U. Ss. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
List of specimens. 
Catal.| Sex Locality. When Whence obtained. | Orig’! | Collected by—| Length. | Stretch | Wing. | Remarks. 
No. |& age. collected. No. of wings. 
| ——— 
1484| 3 | Carlisle, Pa..... ..|May 8, 1844 
Gals) |) WO) tieseobe dOweccests ..| May 16, 1843 
USES |). (6) inapooe GWoncnodo ..| Aug. 29, 1840 BG 
CA (OY" | encaed dO.seeee ..|May 17, 1842]......do. 
1400:| © |. ..se GO.eeee vecccscees Apnil 29, 1844 
2417 | O | Savannah.........- woe | 1845.0... 0008 | 
4092 | @ | New Leon, Mexico ....| April—, 1803 | Lieut. Couch..... LEG pSpncees os0des 7.25 | 11.25 3 75 | Eyes brown; bill slate color 
and blue; feet slate col’d. 
4093 | OD |...006 dOseeslssiseesisiscces secs dO wecen|leeises Oerelevisises NE eaoo Gons0004100 6.00 | 10.00) 3.25 | wyes brown; feet lead color; 
bill lead and dove color. 
6384 | | Eagle Pass, Texas ..... seeeeene ao venil) Major EMOry,saesi|ececs: A. Schott.... 
5033 rot IRECOSs hLGXAS Sisieissicv(eie May 2, 1855) Capt. J. Pope.... GBI lGoganocoqcadad 
6382 | Frontera, Mexico ...... May —, 1853 | Major Emory.....|.sesec]sees coe ceccee 
6385 | <q | Fort Thorne, N. M.....|seeeeees seveee Dr. T. C. Henry..|sccassjecescces ccccale 
6383 | QO | Zoquito, MEXICO .....ee| sree sees ee eeee | Major Emory..... J. H. Clark...|. 
6381 | G | Los Nogales, Mexico... June —, 1855 |...... dO... veeees Dr. Kennerly.|. 
6388 rea Posa creek, Cal Dr. Heermann)... 
GEE 7S) leonane Ovceevevcccescece tees saieeas|socces dO ..ees- woe 
AAG TO irelsleiere Pit River valley, Cal....|..s.seee- sees 0 Dr. Newberry.|....+++- 
9285 | @ | Loup Fork, Platte...... | Aug. 5, 1857 Dr. Hayden... 
9286 | Go |.ceeee Owcevesece evveee Aug. 4, 1857 
9289 [eeeeeeleeeees dO. ccccccccereces|eseere dO. cece ° 
062i (hy il Mexicols~.ciescteieses\---- Sept. —, 1836 Te Pavlovic: 
CYANOSPIZA, Baird. 
Passerina, Viewiot, Analyse, 1816. Not of Linnaeus, used in Botany. 
Spiza, Bonaparte, Synopsis, 1828. Not of 1825. 
Cyanospiza, Bairpv. Type Tanagra cyanea, L. 
Cu.—Bill deep at the base, compressed; the upper outline considerably curved ; the commissure rather concave, with an 
obtuse, shallow lobe in the middle. Gonys slightly curved. Feet moderate ; tarsus about equal to middle toe ; the outer lateral 
toe barely longer than the inner, its claw falling short of the base of the middle ; hind toe about equal to the middle without 
claw. Claws all much curved, acute. Wings long and pointed, reaching nearly to the middle of the tail ; the second and third 
quills longest. Tail appreciably shorter than the wings; rather narrow, very nearly even. 
The species of this genus are all of very small size and of showy plumage, usually blue, red, or green, in well defined areas. 
The species usually associated in this genus vary somewhat in certain points. Thus, in C. 
amoena, the bill is moderately curved, and distinctly sinuated ; the tertials not longer than the 
secondaries, the first primary a little shorter that the fourth; the lateral claws falling consider- 
ably short of the base of the middle one. In C. cyanea, with the bill somewhat similar, the 
tertials are much longer than the secondaries, equal to the sixth primary, the lateral toes rather 
longer. In C. ciris the bill is larger and more curved, the lateral toes reaching nearly to the 
base of the middle claw ; the wing more rounded, the first primary shorter than the fifth ; the 
tertials a little longer than the secondaries. 
In the so called Spiza versicolor the upper mandible, the commissure especially, is more 
curved; the latter without any sinuation; the wings are shorter; the first primary shorter 
than the seventh ; the tertials a little longer than the secondaries. 
The Oyanolowia parellina of Bonaparte is sufficiently similar to species of Oyanospiza to be 
placed among or at least near them, The bill, larger, more swollen, and much curved, though 
differing from Guiraca in having the under jaw much weaker, shorter, and scarcely wider than 
