230 FIELD MUSEUM or NATURAL HISTORY ZOOLOGY, VOL. XIII. 



Genus AITHURUS Cabanis and Heine. 



Aithurus Cabanis and Heine, Mus. Heine, 1860, p. 50 (Type Trochilus polytmus 

 Linnaeus). 



*Aithurus polytmus (Linnaeus). STREAMER-TAILED HUMMINGBIRD. 

 Trochilus polytmus LINNAEUS, Syst. Nat., ed. 10, I, 1758, p. 120; Id., ed. 12, I, 



1766, p. 189 (" America" = Jamaica) ; GOSSE, Illustr. Bds. Jamaica, 1849, 



pis. 19, 20; GOULD, Mon. Trochil., II, 1849, pi. 98. 

 Trochilus maria GOSSE, Illustr. Bds. Jamaica, 1849, pi. 22. 

 Aithurus polytmus ELLIOT, Syn. Trochil., 1879, p. 96; CORY, Auk, 1886, p. 352; 



Id., Bds. West Indies, 1889, p. 147; SCOTT, Auk, 1892, p. 277, part; SALVIN, 



Cat. Bds. Brit. Mus., XVI, 1892, p. 64; RIDGWAY, Bull. U. S. Nat. Mus., 



No. 50, V, 1911, p. 339. 

 1 Aithurus taylori* ROTHSCHILD, Bull. Brit. Orn. Club, XIX, 1894, p. XLVII, in 



text (St. Andrews, Jamaica). 



Range: Southern portion of Island of Jamaica, West Indies 

 (accidental on northern portion). 

 f2i: Jamaica. 



Aithurus scitulus Brewster and Bangs. BLACK-BILLED STREAMER-TAIL. 



Aithurus scitulus BREWSTER and BANGS, Proc. N. E. Zool. Club, II, 1901, p. 49 

 (Priestman's River, Portland Parish, Jamaica); RIDGWAY, Bull. U. S. Nat. 

 Mus., No. 50, V, 1911, p. 339. 



Range: Northern slope of Island of Jamaica; accidental in southern 

 portion. 



Genus TOPAZA Gray. 



Topaza G. R. Gray, List Gen. Bds., 1840, p. 13 (Type Trochilus pella Linnaeus). 



*Topaza pella (Linn.). CRIMSON TOPAZ. 



Trochilus pella LINNAEUS, Syst. Nat., I, ed. 10, 1758, p. 1 19 ("Habitat in Indiis" 



= Guiana, by designation). 1 * 

 Topaza pella GOULD, Mon. Trochil., II, 1856, pi. 66; ELLIOT, Syn. Trochil., 1879, 



p. 95; SALVIN, Cat. Bds. Brit. Mus., XVI, 1892, p. 332; CHUBB, Bds. Brit. 



Guiana, I, 1916, p. 417. 

 Trochilus smaragdulus Bosc., Journ. d'Hist. Nat., II, 1792, p. 385, pi. XX, Fig. 5 



(=female of T. pella). 



Range: Guiana and north Brazil. 

 5 : British Guiana. 



* Aithurus taylori ROTHSCHILD: Differs from typical A. polytmus (LINN.) in 

 having a ruby-red spot on the throat. It is believed to be an abnormal specimen or 

 "sport" of A. polytmus (cf. Ridgway, Bull. U. S. Nat. Mus., No. 50, V, 1911, p. 341, 

 footnote; also, Brewster & Bangs, Proc. N. E. Zool. Club, II, 1901, p. 49. 



b Cf. Brabourne and Chubb, Bds. S. Am., I, 1912, p. 125, No. 1208. 



According to Richmond, cf. Chubb, Bull. Brit. Orn. Club, XXXI, 1912, p. 39. 



