428 



U. S. p. H. K. EXP. AND 8DEVBTS — ZOOLOGY — GENEEAIi EEPOET. 



Immature and young specimens are intermediate in color. 



Tlie bill of this species is much more compressed and slenderer than in 0. americana. The 

 wings are more pointed •; the claws larger. The white hands on the wing distinguish the two 

 in all stages. , 



List of specimens. 



AEGIOTHUS, Cab an is. 



^Scanthis, Bonap. Conspectus, 1850, not of Bechstein, 1803, nor Keys. & Bios. 1840. 

 Jlegiothm, Cabanis, Mus. Hein. 1851, 161. Type Fringilla linaria. Lion. 



Bill very short, conical, and acutely pointed, the outlines even concave j 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 th4n the 

 first and third. Tail deeply forked. 



The specimens before me do not indicate more than one species, A. linaria, although the A. 

 canescens of Greenland, in all probability, is found in Northern America. 



Comparative measurements of species. 



AEGIOTHUS LINAEIA, Cabanis. 



Iiesser Red Poll. 



Fringilla Unaria, Linn. Syst. Nat. I, 1766, 322.— Aud. Orn Eiog. IV, 1838, 538 ; pi. 375. 



Fringilla {Acanthis) linaria, Kets. & Blas. Wirb. Enrop. 1840, No. 115, page 161. 



Acanthis linaria, Bp. Conspectus, 1850, 541. 



Aegioth,u$ linaria, Cabanis, Mus. Hein. 1851, 161. 



Unaria minor, Sw. F. Bor. Am. IT, 1831, 267.— Aud. Syn. 1839, 114.— Ib. Birds Amer. Ill, 184], 123; pi. 179. 



