Vol. XVIll 

 1901 



Bangs, Birds of San Miguel Island. 



27 



birds of San Miguel Island, Mr. Brown seeing or hearing it every 

 day. It is a very well differentiated island form of M. wagleri, at 

 once told by its inferior size, its reddish under parts, and greatly 

 extended scarlet belly patch. 



Phaethornis hyalinus,i sp. nov. 



Three specimens, two males, one female, April 20, and May 5. 



Type from San Miguel Island, Panama, $ adult, No. 4922, Coll. of E. A. 

 and O. Bangs. Collected May 5, 1900, by W. W. Brown, Jr. 



Specific Characters. — Like P. anthophilus except in the color of 

 the back, which in the new form is bottle-green, without a trace of the 

 pale bronzy-green of the same part in P. anthophilus. Feathers of 

 upper parts very little edged with buffy, so that the back and rump are 

 not only darker, but much more evenly green than in P. atithophilus. 



Color. — Pileum dusky; upper parts, from cervix to upper tail-coverts, 

 dark, shining bottle-green ; a few feathers of rump and upper tail-coverts 

 very narrowly edged with buffy ; supraorbital and supra-auricular regions 

 buffy white; suborbital region blackish; side of neck mixed grayish 

 buffy and bottle-green; chin and throat grayish white, with longitudinal 

 dusky streaks in middle part, clear grayish white at sides ; breast suffused 

 with dull smoke-gray ; belly pale drab-gray, shading toward buff on sides 

 and under tail-coverts; wings purplish brown; wing coverts mostly 

 bottle-green; tail dark shining bottle-green with subterminal black bar 

 and white tip ; two central rectrices much elongated (in two specimens, 

 marked as males; very little prolonged in one marked "female .''"); cul- 

 men black, mandible black at end, "basal two thirds cadimum orange" 

 (Nos. 4922 and 4924), or " orange chrome " (No. 4923).* 



1 Hyalinus, glass-green. 



* Notes made by Mr. Brown from the fresh specimens. 



