1915.] Chapman, New Colombian Birds. 659 
Name Place Wing Tail Tarsus Culmen 
C. u. pacificus Esmeraldas, Ec. 131 93 28 30 
“  « a 3 136 91.5 30.5 31 
« « « « 142 96.5 30 30 
coe fe Puerto Valdivia, Col. 137 101 29 30 
aE é é“ « ¢ 139.5 104 28 31 
C. u. uropygialis Los Tambos, Cauca, Col. 157 131 33 33.5 
ee «6 Rio Lima, . Pe a 135 32 30 
« « ‘ ‘ ae sas 133 33 32 
ee . Andalucia, Col. 153 125 31.5 32.5 
A . Ecuador (Quito make)! 157 121 31 32.5 
Measurements of Females. 
Name Place Wing Tail Tarsus Culmen 
C.u. pacificus Alto Bonito, Col. 123 84 29 29.5 
&“ as a “ 126 90 30 29.5 
Bc hoa « « * 12356 88 26.5 27 
«« « La Vieja, Chocé, Col. 111.5 82.5 26.5 27 
itt : Barbacoas, cape = 86 26 25 
“  « 5 Ksmeraldas, Ec. 118.5 86.5 28 29 
ean 2 « « - 123 86 es ae 28 
C.u. uropygialis Andalucia, Col. 142 Thiet Be 30 
Hon @ Ecuador (Quito make) 2 140 114 32 30 
Amblycercus holosericeus flavirostris subsp. nov. 
Char. subsp.— Similar to A. h. holosericeus (Licht.) but smaller, the bill (in skins) 
mustard-yellow rather than greenish horn-color, the culmen averaging broader and 
flatter, squarer, less pointed anteriorly, less rounded posteriorly. 
Type.— No. 118354, Am. Mus. Nat. Hist., 9 ad., Barbacoas, Narifio, Colombia, 
Aug. 18, 1912; W. B. Richardson. 
Range.— Tropical to Temperate Zone in Colombia from the Pacific coast east- 
ward at least to the summit of the Eastern Andes; southward into Ecuador, along 
the Pacific coast region at least to Guayaquil. 
Remarks.— Our fourteen Colombian and Ecuadorian specimens differ 
so constantly and strikingly in color of the bill from our twenty-seven 
specimens from Central America and Mexico (eastern Panama to Tampico) 
that even those specimens from the localities nearest each other (El Real, 
Panama and Alto Bonito, lower Atrato Valley) show no signs of intergrada- 
tion. Age of the skin apparently does not effect this character; old skins 
of both holosericeus and flavirostris having the bill of the same color as in 
freshly collected ones. Apparently there is but little post-mortem change. 
The bill of holosericeus in life is described by Salvin & Godman (Biol. Cent. 
1 See foot-note under females. . 
2 A second skin of the same make from Quito measures wing, 157; tail, 121; tarsus, 31; 
culmen, 32.5. Both are unsexed but the larger is assumed to be a male, the smaller a female. 
