390 REVIEW OF AMERICAN BIRDS. [PART I. 
Cyclorhis g. ScuatER, P. Z. 8. 1858, 448 (Cayenne, etc.).—Is. Catal. 
1861, 45, no. 274. 
Cyclorhis poliocephala, Tscuup1, Wieg. Arch. 1845, 363 (N. Brazil and 
Guiana).—(? Not of Fauna Peruana, 169). 
Hab. Guiana (and eastern Brazil ?). 
_ (No. 178, 4, Cab. G. N. Lawrence, Cayenne.) Head (including cheeks and 
chin) and nape clear pure light plumbeous, the chin considerably paler. Rest 
Cyclorhis guianensis, ScLATER. (Cayenne.) 
of upper parts unvaried olive green, continuous with a rather narrow band 
across the lower part of the throat and extending on side of breast, which are 
of more yellowish olive. Inside of wings, axillars, and inner edges of quills 
yellow. Remaining under parts grayish, the median line and lower belly 
white. Longer crissal feathers tinged with olive. A broad orange brown 
stripe from nostrils (where it meets its fellow and forms a frontal band) over 
and beyond the eye to the nape, the eye placed a little anterior to the middle 
of the band. Bill horn color; the lower mandible, except at tip, blackish- 
plumbeous. Legs dusky. 
Exposed portion of 1st quill more than half that of the 2d, which is rather 
shorter than secondaries ; 4th and 5th quills longest. 
The band across the lower throat scarcely involves the jugulum, and is a 
little more than half an inch wide. The flanks and tibie are grayish, without 
any wash of olive. The under surface of tail is decidedly olive green. 
(No. 178.) Total length, 5.25; wing, 2.75; tail, 2.50; exposed portion of 
1st primary, 1.00, of 2d, 1.70, of longest (4th). (measured from exposed base of 
Ist primary), 2.05; length of bill from forehead, .71, from nostril, .45, along 
gape, .80; depth, .32; tarsus, .83; middle toe and claw, .64, claw alone, .26; 
hind toe and claw, .56, claw alone, .30. 
| . 
Smith-|Collec-) Sex " 
sonian| tor’s | and Locality. Ph ae Received from Collected by 
No. No. | Age. 5 
‘ 178 foo | Cayenne, | | Cab. Lawrence. | — evesee 
