150 U. 8. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
List of specimens. : 
| ‘ | io 7 i Z 
Catal. Sex.) Locality. When col- | Whence obtained. | Orig. | Collected by— \bength. Stretch | Wing. | Specimen Remarks. 
No | lected. No. | of wings. measured. 
all | | 
8876 | 3 | Black hills.............| Sept. 7, 1857 | Lt. G. K. Warren.|......| Dr. Hayden. Ab Se) ||. 1p 4.50? Fresh.... 
5200 |....| Yellow Stone river.....| Aug. 8, 1856]...... UO Bono Oned sobeqd soonoan’ CA socemsdallaobacocn 
6002 | QO Rio Mimbres, N. M..... salah (aslo elete of0 | JVLA 58M OFVan ctelercia'l siareetots | VIIaG larkee steric eae ac 
G003 |... ctecwecdO. cecevecvcececs|cocccccescvers Dr. T. C. Henry..|......| Dr. Henry....ssee|s 
6000 |....| Atanam river, W. T....| Aug. 30. 1853 | Gov. I. I. Stevens.| 5 | Dr. J. G. Cooper... ... 
BOUL |..2.)-.0ee- (Ds ce ego0d0 Ce 00H0| jacaaC anancod |saoco> (eeaadcoc Gil Sonoent() 6 cocunne 
5491 | 3 | Petaluma, Cal.....ecee|-eeeseee eoees.| HE. Samuels. .....6 590 | E. Samuels. ....../..45 
5912 |....| Santa Clara, Cal....... Nov. —, 1855] Dr. J. G. Cooper..|...... ale eis]o sleiaie . Iris brown, bill 
| | | | black, feet gray. 
6a | California. ....sseeeees\eeeceeeceseeee| W. Hutton .. cecces leases ecetesemenlenaderee|ceccteaes|( 10750") eee Doe ae Son 
6004 |...., Colorado river, N.M...| Feb. 23, 1854 | Lt. Whipple...... 179 | Kennerly & Mill- eae weve saties eal cele a'e Blodoo | sacoeG coGOALGAaD 
hausen........./ | 
j-re+) Camp 130, Ne Mevsesee.) sees dO Mee vea| stacedOlfecasiee<|| 177 do. Reo een Eeoseece 5.90 |.......-..| Eyes black..... 
el 
Swatnson, Fauna Bor. A 
CHORDEILES, Swainson. 
-1831, 496. 
Cu.—Bill very small, the gape with very short feeble bristles. Wings very long and pointed, with the first quill nearly or 
quite equal to the second, and the primaries not emarginated on the inner edge. Tail long ; slightly forked in the North American 
species ; plumage rather compact. 
The described North American species of this genus are three in number, the smaller readily 
distinguishable by the rounded rufous spots on the webs of the quills, (C. ¢eaensis.) ‘The others 
are larger and more closely related. 
Comparative measurements of species. 
Catal. No. 
6698 
6010 
ee Sr( BAe), gaeetl 
Species. Locality. 2 | So : ra Bul Olas & Specimen 
x Se Wass || ee } =| a Se 2} i = measured, 
ov o eye pred oe | s = | Et = 
R | y |2 ele | = i a 4 
Chordeiles virginianus .| Carlisle, Pa........ rea 8.70 |......| 8.10 | 4.72 | 0.62 | 0.80 | 0,28 | 0.34 | 0.98 | Skin.... 
9.50 | 24.50) 8.30 |......}....0- slave lo aie! (claiaipieis)| wisisleleial| sieicierais| CCE SMa. 
. | 8.66 |......| 7.80 | 4.60 | 0.60 | 0.74 | 0.24 0.26 | 0.94 Skin.... 
apeeti> Sunaacncd ec eas 4{(i9450) |k23460|(851Gi| oe cceleneeeele coast Seethecdesshiteecs|Breshh & 
soveeedO aineicncisigecs/sss-| Above Ort Pierre. . | 9,10 |......] 7-56 | 4.58 | 0.52 | 0.68 | 0.20 |......| 0.80 | Skin... 
sondedt De eeeeehasoo00s) Jsancoct ie Sasa once jonco66| KSI | EH Ca hao Haare ane dpa sseees| Fresh... 
Chordeiles henryi......| Rio Grande valley..) Q |......|++«+-.| 7.80 | 5.18 | 0.54 | 0.70 | 0.20 0. 1,08 | Skin... 
Chordeiles texensis ....| El Paso, Texas.....| O 8.30 |......| 7.54 | 4.84 | 0.50 | 0.68 | 0.20 | 0.24 | 0.82 | Skin... 
pecaad O's cvcciccceeclecccee| 2e87 | 1912) 787 Ie eccce|evcenc||seosce|aeesviellosesee|eveees| TCS sas 
.| Colorado river, Cal.|......| 8.30 |......| 6.90 | 4.60 | 0.52 | 0.64 | 0.18 | 0.22 | 0.84 | Skin .... 
‘ i | | 
seececGO. vecccsccsses-| Eagle pass, Texas.. 8.30 |...+..| 6.50 | 4.16 | 0.52 | 0.74 02099 KOL26 ,||(ONZ0 iil cee ceeeee 
weve eO. coscseceereoss| Stas Catarina, Mex. 8.22 |......| 7.00 | 4.30 | 0.52 | 0.74 0.22 | 0.24 | 0.80  Skin.... 
Melisieiiccibnencacislelsecces|<iemvicvcemvescslsncess 8.75 | 19.00] 7.00 |...... |98600||e5G00!| 9500) pares} bcc Fresh ,.. 
Remarks. 
nonce ewe eeee neces 
se eee eeeeeeeeees 
see ee eeeeeneeeee. 
Point of bill broken. 
Head off; 
(very 
poor specimen.) 
eoeeeedO . cencees 
sheen eee teereeees 
