206 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. XIII. 



*Chlorostilbon prasinus subfurcatus a Berlepsch. RORAIMA EMERALD. 



Chlorostilbon subfurcatus BERLEPSCH, Ibis, 1887, p. 297 (Mt. Roraima, British 



Guiana); CHUBB, Bds. Brit. Guiana, I, 1916, p. 403. 

 C. prasinus subfurcatus HARTERT, Das Tierreich, Trochil., 1900, p. 77. 



Range: British Guiana. 



i: British Guiana (Mt. Roraima). 



Chlorostilbon prasinus daphne b (Gould). PERUVIAN EMERALD. 



Chlorostilbon daphne GOULD, Introd. Trochil., 1861, p. 177 ("Pampas de Sacre- 

 mento"); HARTERT, Das Tierreich, Trochil., 1900, p. 76; BRABOURNE and 

 CHUBB, Bds. S. Am., I, 1912, p. 119. 



Range: Peru, Ecuador and Colombia. 



Chlorostilbon vitticeps (Simon). SIMON'S EMERALD. 



Prasitis vitticeps SIMON, Rev. Franc. d'Orn., No. 17, 1910, p. 263 (Region of 

 Napo, Ecuador). 



Range: Eastern Ecuador. 



Chlorostilbon peruanus Gould. GOULD'S EMERALD. 



Chlorostilbon peruanus GOULD, Introd. Trochil., 1861, p. 179 (Peru) ; SALVIN, Cat. 



Bds. Brit. Mus., XVI, 1892, p. 57, pi. IV, Fig. 2. 

 Chlorostilbon stuebeli MEYER, Zeitsch. Ges. Orn., I, 1884, p. 206. 



Range: Peru and Bolivia. 



*Chlorostilbon poortmani poortmani (Bourc. and Muls.}. POORTMAN'S 

 EMERALD. 



Ornismya poortmani BOURCIER and MULSANT, Ann. Sc. Phys. et Nat. Lyon, VI, 



1843, p. 39 (Colombia). 



Chlorostilbon poortmani GOULD, Mon. Trochil., V, 1860, pi. 358. 

 Panychlora poortmani SALVIN, Cat. Bds. Brit. Mus., XVI, 1892, p. 69; SIMON, 



Rev. Franc. d'Orn., 1910, p. 264 (northeastern Ecuador, rare). 

 Chlorostilbon poortmani poortmani CHAPMAN, Bull. Am. Mus. N. H., XXXVI, 



1917, p. 291 (Quetame and Buena Vista, Colombia). 



Range: Colombia and northeastern Ecuador. 

 5: "Colombia." 



a Chlorostilbon prasinus subfurcatus BERLEPSCH: Differs in having foreneck with 

 bluish tinge; tail emarginate (not rounded). 



b Chlorostilbon prasinus daphne (GOULD) : Differs in having the bluish tinge of 

 foreneck more decided; bill longer and stronger; tail less emarginate than in sub- 

 furcatus. 



Chlorostilbon vitticeps (SIMON): Male, upper parts of body deep golden green; 

 upper tail coverts deep bluish-green, blackish at base; top of head ornamented with 

 scale-shaped golden feathers, forming a band not reaching the eye and narrowing on 

 the vertex; under parts of body golden green with the breast brilliant greenish-blue; 

 lower abdomen and flanks mixed with dusky grayish; under tail coverts very deep 

 greenish blue or blackish, but slightly edged with gray; tail as in daphne; wings much 

 longer than tail; wing, about 46; bill, 15 to 16 mm. 



