314 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Genus PH@THORNIS Swainson. 
Phethornis Swa1nson, Zool. Journ., iii, no. xi, Dec., 1827, 357. (Type, Trochilus 
superciliosus Linnzeus.) 
Phaéthornis (emendation) Swanson, Fauna Bor.-Am., ii, 1831, 322. 
Phrethornis (typ. error?) Bors, Isis, 1831, 548. 
Phaethornis (emendation) Satvin, Cat. Birds Brit. Mus., xvi, 1892, 267. 
Phethornis (emendation) Lesson, Man. d’Om., ii, June, 1828, 429.—Etxior, 
Classif. and Synop. Troch., 1879, 10. 
Phetornis Frerussac, in Ferussac’s Bull., xxiv, Feb., 1831, 201.—LEsson, 
Index Gen. et Synop. Troch., 1832, p. xiv. 
Phztornis Lesson, L’Echo du Monde Sav., viii, sér. 2, 1843, col. 756.—Bona- 
_ Parte, Rev. et Mag. de Zool., 1854, 249. 
Phaetornis Votat, Das Thierreich, i, 1831, 640.—Licurenstern, Syst. Verz., 
1844, 21. 
Phaétornis Bonaparte, Consp. Av., i, 1850, 67. 
Phethornus JARDINE and SELBY, Illustr. Orn., ser., i, iii, pt. 10, Dec., 1835, 77. 
Ptyonornis Reicuenpacn, Aufz. der Colibr., 1854, 14. (Type, Trochilus eury- 
nome Lesson.) ; 
Ametrornis ReicHenBacH, Aufz. der Colibr., 1854, 14. (Type, A. abnormis 
Reichenbach= Trochilus bourciert Lesson.) 
Ametornis (emendation?) Muusant, Ann. Soc. Linn. Lyon, n. s., xxii, 1876, 201. 
Orthornis BonapartE, Rev. et Mag. de Zool., vi, pt. 2, 1854, 249. (Type, 
Trochilus bourciert Lesson.) 
Guyornis BoNnaPaRTE, Rev. et Mag. de Zool., vi, pt. 2, 1854, 249. (Type, 
Trochilus guyi Lesson.) 
Toxoteuches@ CaBanis and Heine, Mus. Hein., iii, Feb., 1860, 11. (Type, 
Trochilus guyt Lesson.) 
Mesophila Mutsant and VERREAUX, Mém. Soc. Imp. Sci. Cherb., xii (sér. 2, 
ii), 1866, 161 (Classif. Troch., 17). (Type, Trochilus yaruqui Lesson.) 
Anisoterus MULSANT and VERREAUX, Hist. Nat. Ois.-Mouch., i, 1873, 72. (Type, 
Trochilus pretru Lesson and Delattre.) 
Milornis Muusant and VERREAUX, Hist. Nat. Ois.-Mouch., i, 1873, 77. (Type, 
Trochilus squalidus Temminck.) 
Pygmornis Bonaparte, Rev. et Mag. de Zool., vi, pt. 2, 1854, 250. (Trochilus 
intermedius Lesson=T. longuemareus Lesson.) 
Pygornis (emendation?) Mutsanr and VerrEAuXx, Mém. Soc. Imp. Sci. Nat. 
Cherb., xii (sér. 2, ii), 1866, 162 (Classif. Troch., 18). 
Momus Muusant and VERREAUX, Mém. Soc. Imp. Sci. Nat. Cherb., xii, (sér. 
2, ii), 1866, 162 (Classif. Troch., 19). (Type, Pygmornis obscura Gould= 
Trochilus idaliz Bourcier.) 
Eremita (not of Cocteau, 1837) Retcnenspacu, Aufz. der Colibr., 1854, 14. 
(Type, Trochilus rufigaster Vieillot=T. pygmexus Spix.) 
Rather large to small Trochilide (length about 90-155 mm.) 
with very long, more or less: decurved bill, long, graduated tail with 
middle rectrices at least twice as long as lateral pair, middle toe 
united to outer except for its terminal phalanx, tarsi feathered, and 
coloration usually very dull, devoid of metallic hues except on upper 
parts (where rarely brilliant), the under parts rarely with any metallic 
coloring. 
@ ‘Von tofotedync, mit Pfeil und Bogen ausgeriistet,d. h. mit bogenférmigem 
Schnabel und pfeilférmigen Schwanzfedern.’’? (Cabanis and Heine.) 
