428 U. 8. P. R. R. EXP. AND SURVEYS—-ZOOLOGY—GENERAL REPORT. 
Immature and young specimens are intermediate in color. 
The bill of this species is much more compressed and slenderer than in C. americana. The 
wings are more pointed ; the claws larger. The white bands on the wing distinguish the two 
in all stages. 
List of specimens. 
Catal.| Sex. Locality. When collected. | Whence obtained. | Collected by— | Length. | Strewh | Wing. 
No of wings. 
5793 ref Philadelphia, Pa_..-- | Jan, —=,1856)|\sAcad-’Natscien=|\C-pDrexlert=a- a= | === =e a ate lee es 
5802 OR |aee= == dose sssee= a= = | ameecsesqueess Shoe CO) So5eondloaccios COssSsecse)| ssseced| beootacd | Sencsese 
2882 Q Pennsylvania ~ ------ Noyembertepas | eeeesesiee seen =|stetet ClO) boo sentcoo|sosecns|oodesccc 
102280 See — == Nelsonwnivier wl. Dsela| See acmiesse ci DonaldiGunniesss (Sees esses se eee eee eee see et eee 
Cit): | Beaetcae Laramie peak, Neb--| Aug. 25,1857 | Lt Warren.-.--- Dr. Hayden----- 6. 50 10. 25 3. 38 
SKE |scesaacs Laramie peak ?....-- | Bose s eee sass |= seca dOSese=2=c|uee se Ch ee seaoe Ber oara soa sss | Scosast= 
AEGIOTHUS, Cabanis. 
Acanthis, Bonar. Conspectus, 1850, not of Bechstein, 1802, nor Keys. & Blas. 1840. 
Aegiothus, Capanis, Mus. Hein. 1851, 161. Type Fringilla linaria, Linn. 
Bill very short, conical, and aeutely pointed, the outlines even concave ; the commissure straight; the base of the upper 
mandible and the nostrils concealed by stiff, appressed bristly feathers ; middle of the mandible having several ridges parallel with 
the culmen. Inner lateral toe rather the longer, its claw reaching the middle of the middle claw; the hind toe rather longer, 
its claw longer than the digital portion. Wings very long, reaching the middle of the tail; second quill a little longer than the 
first and third. Tail deeply forked. 
The specimens before me do not indicate more than one species, A. linaria, although the 4. 
canescens of Greenland, in all probability, is found in Northern America. 
Comparative measurements of species. 
| 
| 
| Locality. | Sex. | Length.} Stretch | Wing. | Tail. | Tarsus.| Middle Its claw) Bill Along | Specimen 
| of wings.) toe. | alone. | above. | gape. | measured. 
Catal. Species. 
No. 
9224  Leucosticte arctous?...| Siberia 
3701 | Leucosticte tephrocotis.| Salt Lake city 
900 | Aegiothus linaria,.,....} Carlisle, Pa........ é 
GO 5 Gaoaoddd dO vasevecves cers |soeses Ob Gen ooodnees |eweeee 
7109 |... cee. CO sieecdecisieelen| ME DUadelphiay Pa -/rrlretarsiee 
12) |(coggncaatecood 
Carlisle, Pa..... 
.| Ann Arbor, Mich... 
AEGIOTHUS LINARIA, Cabanis. 
Lesser Red Poll. 
Fringilla linaria, Linn. Syst. Nat. 1, 1766, 322.—Aup. Orn Biog. IV, 1838, 538 ; pl. 375. 
Fringilla (Acanthis) linaria, Keys. & Bias. Wirb. Europ. 1840, No. 115, page 161. 
Acanthis linaria, Bp. Conspectus, 1850, 541. 
Aegiothus linaria, Capanis, Mus. Hein. 1851, 161. 
Linaria minor, Sw. F. Bor. Am. II, 1831, 267.—Avp. Syn. 1839, 114.—In. Birds Amer. III, 1841, 122; pl. 179. 
. 
