494 U. 8. P. R, R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
This genus comes nearer to Calamospiza, but has shorter tertials, more slender bill, weaker 
and more curved claws, We. 
Synopsis of species. 
Top and sides of -head light slate; forehead tinged with greenish yellow. A superciliary 
stripe, a maxillary spot, sides of breast, and middle line of breast and belly, yellow. Chin 
white, throat black, shoulders chestnut. Female with the black of the throat replaced by a 
GRESCEUMIPOLISPOUStreceriss stscsdveseccsenatetocesececenescdetnetesceaaeres saci cscses se eslearasiee LH, americana. 
Body throughout, (including the jugulum,) dark ash, tinged with brownish on the back and 
wings. Superciliary and maxillary stripe, chin, throat, and middle of belly, white. A maxil- 
lary line and a pectoral crescent of black spots. No chestnut shoulders........... .. 4, townsendit. 
Under the head of Cyanospiza, page 500, will be found some remarks upon the genera Huspiza 
and Spiza, of Bonaparte. The name of Spiza was first used in connexion with the Lmberiza 
americana, but so mixed up with types of several other modern genera as to render it uncertain 
whether to apply it to one rather than another. Under the circumstances, therefore, it may be 
best to retain Huspiza, although if Spiza pointed more unmistakeably to the EL. americana it 
might, perhaps, be necessary to adopt it. 
Comparative measurements of species. 
z es ; rales 3 
z ; , niece Seas Seals Sets 
3 Species. Locality. & |S ta és a o |og Sikora ee to | Specimen 
c Fe Pesce Ss St See face tf ea SUE CChles eich lh 
iS “ a o -:| & | a 3 alstleg = = measured. 
os o o me Ss x =] tm |3 = 6 |S = = 
ia) n vA |n = & a = |= mela a =< 
| Paes 
1459 | Buspiza americana ..... l\Gatlisle:..sseeseeones So | 6.06 |..... 3.26 | 2.80 | 0.90 | 0.90 | 0.26 | 0.67 | 0.30 | 0.53 | 0.60 | Skin ...... 
itis Booaeaes GR Gasadnoepsbads hosccn Or acaseaniece eal acco 62683102751) (9242) vonae al aeeeed|cucces | neseer|/oecaedlinoseesl seeseeliccceas Fresh ..... 
| | | 
SQG6i|lsesrtectes Ossiacidelyoastalsicies Frémont on Platte....| @ | 5.€4 |...06. 3.34 | 2.68 | 0.90 | 0.90 | 0.24 | 0 66 | 0.30 | 0.57 | 0.66 | Skin ...... 
Gta eoaeoes dOsseessisraseceeslisceret Ow: Sse ccocecusa|scnees 6:50/}10!503| (3150;)| esses |eeszes| encase lsaceeslbosecel Sessee seerealeeceee | Fresh ..... 
1O1S3 Il eeresiseistc COsesecsisiaisesice a's Washington, D.C...|/ Q | 5.62 |...+../ 2.98 | 2.50 | 0.80 | 0.80 | 0.23 | 0.60 | 0.28 | 0.52 | 0.56 | Skin ...... 
10282 | Euspiza townsendii...... Chester county, Pa...| @ | 5.40 |..... 2.86 | 2.56 | 0.80 | 0.80 | 0.23 | 0.53 | 0.24 | 0.48 | 0.56 | Skin...... 
(RA hse qaeatl a oqapoonecoModa dodoua GhA Gosnoncscoen|nooods Hato!)| DOO) dsreisiee|oe sess eje0eee!| sess | © 45's \0/s)| (s[sie.e) "all eleisie'e(al|lstoleisiera'|'s'stars'aye Fresh ..... 
EUSPIZA AMERICANA, Bonap. 
Biack-throated Bunting. 
Emberiza americana, Gmewin, Syst. Nat. I, 1788, 872.—Wixson, Am. Orn. III, 1811, 86; pl. iii, f. 2.—Aupuzon, 
Orn. Biog. IV, 1838, 579; pl. 384.—Is. Syn. 1839, 101.—Is. Birds Amer. III, 1841, 58 ; 
pl. 156. 
Fringilla (Spiza) americana, Bonar. Obs. Wils. 1525, No. 85. 
Euspiza americana, Bonar. List. 1838. (Type.)—Is. Conspectus, 1850, 469. 
Euspina americana, Capants, Mus. Hein. 1851, 133. (Type.) 
Fringilla flavicollis, Gmetin, Syst. Nat. I, 926. 
‘© Emberiza mexicana, Laruam,’’ Syn. 1, 1790, 412. (Gray.) 
Passerina nigricollis, VIEILLOT. 
Yellow-throated finch, Pennant, Arc. Zool. II, 374. 
Sp. Cu.—Male. Sides of the head, and sides and back of the neck ash ; crown tinged with yellowish green and faintly 
streaked with dusky. A superciliary and short maxillary line, middle of the breast, axillaries, and edze of the wing yellow. 
Chin, loral region, spots on sides of throat, belly, and under tail coverts white. A black patch on the throat diminishing to 
the breast, and a spot on the upper part of the belly. Wing coverts chestnut. Interscapular region streaked with black; rest 
of back immaculate. Length, about 6.70 ; wing, 3.50. 
Female with the markings less distinctly indicated ; the black ofthe breast replaced by a black maxillary line and a streaked 
collar in the yellow of the upper part of the breast. 
Hab.—Unitcd States from the Atlantic to the border of the High Central Plains, 
