384 REVIEW OF AMERICAN BIRDS. [PART I. 
Smith- Icotlec- Sex When 
sonian| tor’s | and Locality. Collected Received from Collected by 
No. No. | Age. 5 
. 23,326 87 | fof Trelawney, Jam. | Jan. 31, ’59. Dr. Sclater. W. Osburn, 
(23,326.) Type. 
CYCLORHAIS, Swainson. 
Cyclorhis, Swanson, Zool. Journal, III, 1828, 162. (Type Tanagra 
guianensis, GM.) - 
Form very stout; the head broad. Wings rather longer than the narrow, 
nearly even, or slightly rounded tail ; the quills graduated: the Ist more than 
Cyclorhis guianensis, SCLATER. (Cayenne.) 
half the 2d, which about equals secondaries; the 4th or 5th longest; the 
tips not attenuated. Bill very powerful, deep, much compressed (depth 
almost equal to distance from nostril to notch of bill); culmen and gonys 
much curved from base; gape nearly straight; tip of upper bill decurved 
and with deep notch; tip of lower less distinctly marked. Nostrils small, 
nearly circular, in anterior end of nasal fossa, with membrane above and 
behind it. Frontal feathers directed somewhat forward, but not overhanging 
nostrils, and with very few bristles ; those of rictus moderate. 
Feet stout (rather less sothanin Dulus). Tarsus rather longer than middle 
toe and claw; distinctly scutellate anteriorly, and with one or two divisions 
externally at lower end. Basal joint of middle toe entirely adherent exter- 
nally to one and a half joints of outer ; internally, but slightly free and united 
to half of adjacent joint. Lateral toes nearly as long as middle, reaching 
over half the length of middle claw or even farther. Hind toe longer than 
the lateral. Claws all very stout and sharp, much curved. 
The bill of Cyclorhis, in its compression, great depth, and other 
