On Some Birds from Santa Marta, Colombia. 173 



nation in the length of the bill, which certainly does not depend upon 

 sex, but seems to be individual. 



I have some doubt whether the bird from the Sierra Nevada de Santa 

 Marta is subspecifically the same as that of the Andes of Venezuela, but 

 without material from the type locality I cannot be sure. All my speci- 

 mens have a large black mark at the base of the culmen ; the end of the 

 tail is strongly bluish ; and there is a wash of dark olive yellow on the 

 sides of the head. 



Aulacorhamphus lautus* sp. nov. 



Type (and only specimen), from San Miguel, Colombia. No. 5789, ^ 

 adult, coll. of E. A. and 0. Bangs. Collected June 6, 1898, by W. W. 

 Brown, Jr. Altitude, 7500 ft. 



Specific characters.— Not much like any described species. Among the 

 species having chestnut tips on rectrices it agrees in color of throat only 

 with A. albivittatus, but is a much smaller bird, lacks the chestnut basal 

 portion of mandible, and has the basal portion of culmen black, besides 

 differing in several minor particulars. In pattern of bill the new species 

 agrees best with A. cseruleogularis of Costa Rica and Veragua, but differs 

 in the absence of the chestnut spot at base of yellow maxillary stripe, and 

 in having a gray instead of deep blue throat. 



Color. — Upper parts grass green— more bluish on wings, more yellow- 

 ish on back ; primaries and inner webs of secondaries dusky, with nar- 

 row yellow border on inner edges; a small blue supraorbital stripe; 

 throat cinereous ; breast and abdomen pale grass green to apple green ; 

 feathers of center of belly white at base ; crissum chestnut; tail, above, 

 green, bluish towards end, each feather tipped with chestnut; below, 

 black, each feather tipped with chestnut; bend of wing and under wing- 

 coverts pale yellow. Bill, maxilla, tip and stripe along culmen which 

 divides at base of culmen and encloses a large black patch, yellow ; sides 

 ami patch at base of culmen black ; mandible black ; a broad yellowish 

 white stripe across base of maxilla and mandible. 



Size.— Length (skin), '291; wing, 124; tail, 108.8; exposed culmen, 

 69.6 ; tarsus, 34. 



Phcethornis longirostris (Less, and De Latt.). 



Four adults, three males and one female, from Palomina. 



Petasophora iolata Gould. 



Twenty-eight adults, males and females, from Macotama and San 

 Miguel — May and June. 



Leucuria gen. nov. (Trochilidae). 



Type. — Leucuria phalerata, sp. nov. 



Characters.— Related to Helianthea and also to Hemistephania. Bill long, 



* Lautus = neat, elegant, in a fine dress. 



