BIRDS OF NORTH AND MIDDLE AMERICA. 109 



hli. Colors duller, the abdomen brownish black or dark brown; tall 

 longer (averaging 73.9). (Isthmus of Panama.) 



Bamphocelus dimidiatns isthmicuB, adult male (p. 118) 

 gg. Abdomen with dusky (not black) area much restricted, sometimes 

 obsolete; general coloration lighter; greater wing-coverts edged 

 with dusky red. (San Miguel Island, Bay of Panama.) 



Ramphocelua dimidiatns limatns, adult male (p. 119) 

 ee. Bed feathers of rump and under parts and tail coverts with central spots 

 of black. ( ' ' Guatemala. ' ' ) 



Bamphocelus uropygialis, adult male (p. 119) 

 ofi. Wings and tail dusky with lighter (grayish, brownish, dull reddish or light olive 

 or olive-greenish) edgings. (Adult females and immature males. ) 

 h. Throat grayish or pale brownish; rest of under parts yellowish olive or light 

 tawny-olive, 

 c. Rump and upper tail-coverts light yellowish olive. 



Eampkocelns passerinii, adult female and young male (p.llO) 

 cc. Rump and upper tail-coverts orange-rufous. 



Bamphocelus costaricensis, adult female and young male (p. Ill) 

 hh. Throat not grayish; under parts of body not olive, 

 c. Throat, under parts of body, and rump yellow (lemon or sulphur) . 



Bamphocelus icteronotus, adult female and young male (p. 113) 

 cc. Throat brown or maroon; under parts of body brownish red or ochraceous- 

 orange. 

 d. Rump and under parts ochraceous-orange; back light olive; head and neck 

 (all round) olive. 



Bamphocelus luciani, adult female and young male (p. 116) 

 dd. Rump and under parts brownish red; back reddish brown; head and neck 

 (all round) warm sepia brown or dark reddish brown. 

 e. Throat maroon; back deeper reddish brown; rump and under parts of 

 body deeper brownish red. 



Bamphocelus melanogaster, adult female and young male (p. 116 ') 

 ee. Throat dark sooty brown or seal brown; back lighter reddish brown; 

 rump and under parts of body lighter brownish red. 

 /. Head and neck dark sooty brown, the general coloration darker and 

 richer. 

 Bamphocelus dimidiatus dimidiatus, adult female and young male (p. 117) 

 ff. Head and neck seal brown, the general coloration lighter and duller. 

 g. Larger (wing averaging 75.9, tail 72.1, tarsus 21.3). 

 Bamphocelus dimidiatus isthmicus, adult female and young male (p. 118) 

 gg. Smaller (wing averaging 74.4, tail 66.5, tarsus 20.1). 



Bamphocelus dimidiatus limatus, adult female and young male (p. 119) 



RAMPHOCELUS PASSERINII Bonaparte. 



PASSEKIUrS TANAGER. 



Ackdt tnale. — Uniform glossy black; entire lower back, rump, and 

 upper tail-coverts bright, intense scarlet, the feathers white for basal 

 half, with yellow between the white and scarlet; bill light blue in life 

 (grayish in dried skins) with tip black; iris brown; legs and feet 

 dusky grayish in dried skins (grayish blue in life?); length (skins), 

 148.6-165.1 (157.2); wing, 71.4-78.2 (74.9); tail, 64-74.2 (68.3); 

 exposed culmen, 12.4r-14.7 (13.5); depth of bill at base, 7.4-8.1 (7.9); 

 tarsus, 21.3-23.4 (22.4); middle toe, 13.5-16.8 (15).' 



' In footnote. " Twenty-four specimens. 



