''"lagi!''] PROCEEDINGS OF THE NATIONAL MUSEUM. 477 



iiig of the metallic, [)orti()ii.s of the pliiiiuijje. The latter, which Mr. 

 Cherrie writes is the coiiimoii or prevailiiij;' type in Costa Rica, has no 

 shade of blue anywhere, the tail and bade bein}^ in fact decidedly 

 bronzy, otiier portions (head, neck, chest, nun[>, and u[)i)er tail-coverts) 

 bciiij^ bri<;lit bron/.e-jjreen. The other spccinien has the f]^reen every- 

 where of a decided bluish cast, l)e(;oniin;;' almost blue on the iMiinp, 

 u[)per tail coverts, and hind-neck. There are apparently no other dif- 

 ferences beyond those which may l)e atti'ibuteil to ordinary individual 

 variation. The two birds certainly look like distinct species, but on 

 coniparinj; a considerable series of specimens it is seen that they merely 

 represent extreme variations of one bird, as the following will show: 



No. 3948, Museo Nacional de Costa Rica, J imt'-ncz, Costarica. IJronze. 

 green, with back and middle rectrices bronze. 



No. 3470, IMuseo Nacional de Costa Itica, same locality. Dronze- 

 green, with back more bronzy. 



No. 159(!, IMuseo Nacional de Costa Kica, Naranjo, Costa Rica. Bronze- 

 green, the back more bronzy. 



No. lotU, Museo Nacional de Costa Rica, Pacuare, Costa Kica. illu sh 

 green, becoming greenish blue on rumi), ui)per tail-coverts, and hind 

 neck. 



No, -■MSTo, U. !S. National ^Museum, I'urrialba, Costa Rica. Pure 

 green, tinged with bronze on scapulars. 



No. 548!M;, U". S. National Museum, Angostura, Costa Rica, liionze. 

 green, upper tail-coverts abrui)tly bluish green, and scapulars mixed 

 with bronze feathers. 



No. (i.i08G, U. S. National Museum, Veragua. IJronze-green, mixeil 

 with clear green on the rumi>. 



No. 53978, U. S. National .Museum, Panat)ia. Clear green, l)ecoming 

 bronze-green on scapulars and across lower back. 



No. 91l!7(>, U. !S. Natioiuil 31useum, Los fSiibalos, Nicaragua. IJronze- 

 green, niixed with bronze on back and scapulars. 



No. 1201*51, U. S. National Museum, San Pedro 8ula, Honduras. 

 l'>ronze, becoming bronze-green on head, rumj*, and upper tail-coverts. 



No. 120252, U. S. National Museum, same locality. Similar to No. 

 120251, but a lit-tle greener. 



No, 10157, LI, S, National Museum, Oreytown, Nicaragua. Clear, 

 green, more bluish on head, scapulars mixed with bronzt', back tinged 

 with bluish green, and upper tail-coverts al)ruptly bluish green. 



No. 50550, IT. S. National Museum, (luatemala. J>ronze-green, more 

 bronzy on scapulars, clear green on head, and longer ni)per tail <;overts. 



An adult female from PozoAznl (No. 1502, Museo Nacional de Costa 

 Rica, December 1, 1S,S5, -I. C. Zeledon) differs remarkably from all otiieis 

 I have seen in having the entire bill black, the undermandible(piite as 

 uniform and deep black as the upper, instead of orange or ora!ipere(l 

 (drying dull yellowish). An immature female (No, 1300!), U. S. National 



