NO. 9 BIRDS OF ISLA COIBA, PANAMA—WETMORE 105 
wing coverts dull white; axillars Naples yellow. Maxilla and tip of 
mandible black; rest of bill dull neutral gray; tarsus and toes light 
fuscous (from dried skin). 
Measurements—Males (6 specimens), wing 75.5-80.3 (78.0), tail 
64.6-69.3 (66.7), culmen from base 16.7-18.3 (17.6), tarsus 27.0-29.0 
(27.8) mm. Females (6 specimens), wing 69.9-74.6 (72.3), tail 60.0- 
64.9 (62.6), culmen from base 16.2-17.9 (16.9), tarsus 26.2-28.5 
(27.4) mm. 
Type, male, wing 77.5, tail 67.3, culmen from base 17.6, tarsus 
27.6 mm. 
Range.—Isla Coiba, off the Pacific coast of Veraguas, Panama. 
Remarks.—The dull orange tint found as a faint wash on the 
tertials and inner secondaries of some specimens from the mainland 
is much intensified in the Coiba Island birds, especially on the tail. 
In several this color becomes a strong hue of Dresden brown, present 
extensively on the outer webs of the back feathers, indicated lightly 
over the gray of the central crown stripe, and found even on the white 
of the abdomen, where it is modified to ochraceous-tawny. 
In the darker coloration the Coiba race actually resembles rather 
closely Arremonops comrostris centrata Bangs of eastern Honduras, 
differing from this in duller cast of the green dorsal surface, decidedly 
darker tail, more buffy under tail coverts, and in the dull orange 
cast just described. The Honduras race, represented in the National 
Museum collections by a male from La Ceiba, the type locality, and a 
female from Trujillo, appears decidedly better marked than Todd 
in his review ** of this genus has indicated. 
The name of the Coiba Island bird, from the Latin viridicatus, deep 
green, is given in recognition of its predominant dorsal color. It 
may be remarked that the generic name Arremonops, though treated 
by some writers as masculine, is of feminine gender. 
84 Proc. Biol. Soc. Washington, vol. 36, Mar. 28, 1923, p. 4I. 
