PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 9 



ATTHIS ELLIOTI. 



" Selasjyhorus heloiscu'', Scl. & Salv., Ibis, i, 1859, I'iO (Guatemala); il). 1860, 195 

 (Dueiias. Guatemala). — Salvin, ib. 266 (Guatemala; Tierra Caliente, and 

 slopes of Volcau de Fuego). 



"AUhin hcloisn'', B. B. & R., Hist. N. Am. B. ii, 1674, 465 (part : Guatemala references). 



Specific Characters. — Adult male: — Outer primary broad, the end 

 uot attenuated. Gorget uuif'orm reddish-purple (much as in Calypte 

 annco), without varying tints of violet, as in A. hcloisw. Jugulum 

 wholly white; middle of the abdomen white; sides light rufous, slightly 

 glossed with golden-green ; crissum white, tinged with light rufous. 

 Upper parts metal ic-green, decidedly less golden than in A. heloiscc. 

 Tail with the basal half (approximately) bright ciunaLnon-rufoiis, the 

 subterminal portion black; three outer feathers (on each side) tipped 

 with rusty- white; the middle pair with the black portion above glossed 

 with metallic-green anteriorly. Wings uniform dusky, the smaller cov- 

 erts metallic-green. Wing, 1.35; tail, 1.00-1.05; culmen, 0.38-0.40. 

 [Type, Xo. 20491, S ad.. Coll. U. S. Nat. Mus., Volcan de Fuego, Guate- 

 mala.] 



With a very close general resemblance to A heloisw, this species may 

 be immediately distinguished by the very different form of the outer 

 primary, the redder and more uniform color of the throat-gorget, and 

 the shorter bill. The peculiar characters of the two may be contrasted 

 as follows : — 



24616. 

 Jl/Ju) /icluinJe. a . Jalcijia. Dr. Heermann. Mthis elliot!. ,ff . Guatemala. Bourcier. 



A. ellioti. 



Outer primary broad, the end not attenuated. Gorget uniform pur- 

 plish-red, without varying violaceous tints. Wing, 1.35 ; tail, 1.00-1.05 ; 

 culmen, 0.38-0.40. 



Hah. — Guatemala. 



A. heloisae. 



Outer primary vcny narrow, tbe end abruptly attenuated. Gorget 

 reddish-violet, showing decided violet tints in certain lights. Wing, 

 1.30-1.50; tail, 0.95-1.10; culmen, 0.48-0.50. 



Hah. — Eastern Mexico. 



