2^/ ao i^ f { Vol. 63, pp. 61-62 \ May 25, 1950 'PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON AN ADDITIONAL FORM OF PEPPER-SHRIKE FROM WESTERN PANAMA By Alexander Wetmore During study of specimens of Cyclarhis gujanensis from northern Colombia and Panama there has come to attention an interesting, handsomely colored race, found along the base of the eastern side of the Azuero Peninsula in western Panama, that is new ta science. It may be known as Cyclarliis gujanensis perrygoi subsp. nov. Characters. — Similar to C. g. nicaraguae,^ but with yellow of under surface brighter, especially on sides and flanks; upper surface brighter green; crown with the Wown wash deeper in color. Description. — Type, U. S. Nat. Mus. no. 400,660, male, from Cienaga Macana, near El Eincon, Province of Herrera, Panama, taken March 17, 1948, by A. Wetmore and W. M. Perrygo (orig. no. 13,896). Forehead and a broad band extending back on either side of the pileum, with a narrow line on the lower eyelid, russet; lores (extending to the eye to break the russet on the lower eyelid), sides of head and upper neck light neutral gray; crown and nape deep olive, with the feathers tipped very narrowly with russet, producing a brownish wash; back and wing-coverts between warbler green and olive-green; rump and upper tail-coverts warbler green; exposed surface of secondaries and remiges olive-green; secondaries and primaries with inner webs dark mouse gray, and outer webs between warbler green and olive-green; rectrices olive-green; chin, extreme upper throat, and center of abdomen white; under tail-coverts citron yellow; rest of under surface strontian yellow, becoming lemon yellow on the lower breast and flanks; under wing-coverts and edge of wing lemon yellow; inner webs of primaries edged with strontian yellow. Maxilla bister, becoming grayish olive on the sides near the tip, a color that extends down on the tip of the mandible; rest of mandible plumbeous black ; tarsus, toes and claws dull army brown. Measurements. — Males (7 specimens), wing 69.6-74.9 (72.6), tail 50.0-55.5 (53.1), culmen from base 17.3-19.7 (18.6), tarsus 22.2-23.0 (22.5) mm. Females (3 specimens), wing 70.5-76.0 (72.3), tail 51.4-54.9 (53.3), culmen from base 17.8-18.7 (18.2), tarsus 22.8-23.4 (23.1) mm. Type, male, wing 73.1, tail 54,2, culmen from base 18.1, tarsus 22.6 mm. Eange. — In western Panama from southern Code (Aguadulce) south through the Province of Herrera (El Eincon, Parita), and west in the drainage of the Eio Santa Maria into extreme east central Veraguas (El Villano, 15 miles southeast of Santiago). Sight records assumed to be '^Cyclarhis flaviventris nicaraguae Miller and Griscom, Amer. Mus. Nov. no. 183, July 18, 1925, p. 6. (Matagalpa, 2,200 feet elevation, Nicaragua.) 11 — Peoo. Biol. See. Wash., Vol. 63, 1950 (61) ^ <C -^.
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