CYCLORHIS. 211 
shores of the Pacific Ocean. Doubts were also expressed as to the origin of the 
specimens from the Isthmus of Panama; but the range of the species having been 
proved throughout Central America into the State of Panama, we now think that 
these doubts were perhaps hardly justified. 
The first description of V. pulchellus was based upon a specimen in the British 
Museum, sent there by the late George Ure Skinner from Guatemala. 
Vireolanius pulchellus has two allies in the continent of South America. V. eximius — 
is its representative in Colombia, probably in the forests of the valley of the Magdalena. 
V. leucotis takes its place in Guiana and throughout the forests of the great basin of 
the Upper Amazons. Concerning this last species some misapprehension has long 
prevailed; but we believe that the materials received by us from Ecuador and Guiana 
have placed the species on a proper footing, and that one bird, and not two, is found 
over this wide area *. 
CYCLORHIS. 
Cyclorhis, Swainson, Zool. Journ. iii. p. 162 (1828) (type Tanagra guianensis, Gm.); Baird, Rev. 
Am. B, i. p. 384. 
Cyclorhis has a stouter bill than any other genus of Vireonide, Vireolanius alone 
approaching it in this respect; the legs too are stout and the claws strong. The first 
primary is well developed, being about equal to half the second. 
We are now acquainted with eleven species of Cyclorhis, all of which have a great 
general resemblance to one another in colour. They may be divided into two groups 
by the colour of the head. The typical section, to which both the Central-American 
species belong, have the top of the head and nape grey, with an ochraceous tinge. Some 
eight species compose this group, which belongs to the northern and eastern portions 
of South America. The second section, of which C. virenticeps is a representative, 
consists of three species which have the vertex and nape green, like the back. These 
are found in western parts of South America, Colombia, Ecuador, and Peru. 
1. Cyclorhis flaviventris. 
Cyclaris flaviventris, Lafr. Rev. Zool. 1842, p. 183'; Bp. Consp. Av. i. p. 3802. 
Cyclorhis flaviventris, Scl. P. Z. S. 1856, p. 299°; 1859, p. 363‘; 1864, p. 173°; Scl. & Salv. Ibis, 
1859, p. 13°; Baird, Rev. Am. B. i. p. 3867; Lawr. Ann. Lye. N. Y. ix. p. 200°; Bull. U.S. 
Nat. Mus. no. 4, p. 18°; Sumichrast, Mem. Bost. Soc. N. H. i. p. 548"°; Salv. Cat. Strickl. 
Coll. p. 114". 
Cyclorhis amaurophrys, Licht. Nomencl. Av. p. 11” (fide Bonaparte, ut supra ’). 
Supra olivacea, pileo summo et genis plumbeis, his pallidioribus, superciliis ochraceo rufescentibus ; subtus 
omnino flava, hypochondriis olivaceo indutis ; rostro et pedibus carneis, mandibule basi nigricante. Long. 
* Cf. Salv. Ibis, 1878, p. 443; Salv. & Godm. Ibis, 1882, pp. 77, 78. 
