230 Field Museum of Natural History — Zoology, Vol. XIII. 



Genus AITHURUS Cabanis and Heine. 



Aithurus Cabanis and Heine, Mus. Heine, i860, 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, lUustr. 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, I9ii,p. 339- 



"^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). 

 t2i: 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, 191 1, 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).'' 

 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, Joum. 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. 



'' Cf. Braboume and Chubb, Bds. S. Am., I, 1912, p. 125, No. 1208. 



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



