BIRDS OF NORTH AND MIDDLE AMERICA. 341 



Birds Brit. Mus., xvi, 1892, 64.— Field, Auk. xi, 1894, 125 (Port Henderson, 



Jamaica). — Rothschild, Ibis, 1894, 547 (crit.). — Boucard, Gen. Iluni. Birds, 



1895, 108.— Lodge, Ibis, 1896, 496 (hal>its). 

 [Aithurus]polytm us Gray, Hand-list, i, 1869, 134, no. 1717. — ScLATEiiandSALviN, 



Nom. Av. Neotr., 1873, 82.— Cory, List Birds West Ind., 1885, 17.— Sharpe, 



Hand-list, ii, 1900, 120. 

 Aiturus polytmus Boucard, Notes quelcjues Troch., 1873, 15. 

 A'itunis polytmus Mulsant and Verreaux, Hist. Nat. Ois.-Mouch., i, livi". 3, 



1874, pi. 13. 

 Aytunis polytmus Hartert, Kat. Vogelsaraml. Mus. Renckenli., 1891, 115. 

 Ornisinya cephalatra Lesson, Hist. Nat. Ois.-Mouch., 1829, pp. xviii, 78, j)]. 17; 



Index Gen. and Synop. Troch., 1832, p. xvi. 

 [Polytmus] cephalatra Bonaparte, Consp. Av., i, 1850, 72. 

 Polytmus cephalatra Bonaparte, Rev. et Mag. de Zool., 1854, 354. 

 Polytmus cephalater Sclater, Proc. Zool. Soc. Lond., 1861, 79. — Albrecht, Joum. 



fur Orn., 1862, 201.— Mulsant and Verreaux, Classif. Troch., 1866, 36. 

 TrocMlus maria Gosse, Ann. and Mag. N. H., iii, 1849, 258. — Gosse, Illustr. Birds 



Jam., 1849, pi. 22. 

 Aithunt^fuliginosus Marcb., Proc. Ac. Nat. Sci. Phila., 1863, 285 (St. Ann's). 

 [Aithurus]fuliginosus Gray, Hand-list, i, 1809, 134, no. 1718. 

 Polytmus viridans (ex Brisson) Reichenbach, Aufz. der Colil)r., 1854, 11; Troch. 



Enum., 1855, 9, pi. 799, figs. 4858-4860. 

 (?) Trochilusforji.catus (not of Linnjeus) Vieillot, Nouv. Diet. dTIist. Nat., vii, 



1817, 366 (Jamaica; based on Ois. Dores, pi. 10). 

 C!) Oniismya furcata (not Trochilus furcatus Gmelin) Lesson, Index Gen. and 



Synop. Troch., 1832, p. xxii, part (Jamaica). 

 (?) Aithurus tayloii « Rothschild, Bull. Brit. Orn. Club, no. xix, June 30, 



1894, p. xlvii, in text (St. Andrews, Jamaica; coll. Tring Mus.); Ibis, 1894, 



548 (reprint).— Boucard, Gen. Hum. Birds, 1895, 402. 

 [Aethurus] polyt[mus] tayloii Simon, Cat. Troch., 1897, 24. 



AITHURUS SCITULUS Brewster and Bangs. 



BLACK-BILLED STREAMER-TAIL. 



Similar to A. polytmus l)iit slio;htly smaller, and witli IhII wholly 

 black, tlie adult male with yreeii of under parts less yellowish, that of 

 back, etc., more o;rass-oTeen (less bronzy). 



Adult male. — Pileum (includinii; latero-occipital crests), together 

 with loral, orbital, and postocular regions, opaque velvety black; 

 back, scapulars, wing-coverts, rump, and upper tail-coverts, metallic 

 grass-green; remiges dull blackish or dusky, faintly glossed with pur- 

 plish, the inner secondaries ])artly metallic green; tail uniform black, 

 very faintly glossed with bluish; under parts bright metallic green, 

 the feathers of throat and chest white basally (mostly concealed), 

 those of abdomen, etc., more grayish basally; under tail-coverts 

 bluish black; bill wholly black; iris dark brown; feet dusky; length 

 (skins), including elongated rectrices, 211-250 (236); wing, G2.5-G5 



"Apparently a variety or "sport " of A. polytmus distinguished by possession of a 

 ruby-red spot on the throat. See also Brewster and Bangs, Proc. New Engl. Zool. 

 Club, ii, 1901, 49. 



