BIRDS OF NORTH AND MIDDLE AMERICA. 627 
[Calypte] helenae Mutsant, Ann. Soc. Linn. Lyon, n. s., xxii, 1876, 227. 
Atthis helenae Lawrence, Ann. Lyc. N. Y., vii, 1860, 263 (crit.). 
[Trochilus] helene Gray, Hand-list, i, 1869, 145, no. 1869.—SHarrz, Hand-list, 
ii, 1900, 140. 
T[rochilus] helene Ripaway, Man. N. Am. Birds, 1887, 313. 
T[rochilus] helenae Hartert, Das Tierreich, Troch., 1900, 203. 
Trochilus helene Munraaux, Rev. Frang. d’Orn., no. 2, 1909, 26 (Figuabas, 
e. Cuba). 
Orthorhynchus bootht GunptacuH, Journ. fiir Orn., 1856, 99; 1859, 347 (Santiago, 
e. Cuba). 
Zephyrites (Calypte) elvirae MuLSANT and VERREAUX, Classif. Troch., 1866, 88. 
Genus ARCHILOCHUS Reichenbach. 
Trochilus (not of Linnzeus, 1758? 2) of AUTHORS. 
Cynanthus (not of Swainson, 1827) Borg, Isis, 1831, 547. (Type, Trochilus colubris 
Linneus.) 
Colubris (not of Hiibner, 1793) Woop (T. C.), Orn. Guide, Jan., 1837,187. (Type, 
C. rubens Wood=Trochilus colubris Linneeus.)—ReIcHENBACH, Syst. Av. 
Nat., 1849, pl. 40. (Type, Trochilus colubris Linneeus.) 
[Selasphorus] 8. Archilochus RrtcHenBacH, Journ. fiir Orn., 1853, Extra heft, 
1854 (‘‘Aufz. der Colibr.’’), 18. (Type, Trochilus alexandri Bourcier and 
Mulsant.) 
Ornismia (not Ornismya Lesson, 1829) Mutsant and VERREAUX, Mém. Soc. Imp. 
Sci. Nat. Cherb., xii (sér. 2, ii), 1866, 235 (Classif. Troch., 1865, 91). (Type, 
Trochilus alecandri Bourcier and Mulsant.) 
Mellisuga (not of Brisson) SuNDEVALL, Av. Met. Nat. Disp. Tent., pt. ii, 1873, 91. 
(Type, Trochilus colubris Linneus.) 
Small Trochilidz (length about 75-100 min.) with bill as long as or 
longer than head, rather slender, straight; six innermost primaries 
abruptly narrower than the rest, with the edge of inner web forming 
a more or less prominent angle subterminally; adult males with the 
“sorget’’ not elongated laterally, pileum concolor with the back or 
more dusky, the tail deeply emarginate, but with outer pair of rectrices 
shorter than the next, all the rectrices except middle pair pointed 
terminally. 
Bill as long as or longer than head, rather slender, straight, terete; 
culmen rounded except at base where contracted into a narrow ridge; 
tomia smooth; mandible with the usual lateral median groove. 
Nasal operculum moderately broad and convex, mostly (sometimes 
wholly) covered by the appressed frontal feathering, which anteriorly 
extends to beyond anterior end of nostrils, forming a short angle or 
antia on each side of culmen. Wing a little more than twice to nearly 
two and a half times as long as exposed culmen; outermost primary 
longest, strongly incurved terminally, in adult male of A. colubris 
much narrower than the next and obtusely pointed terminally; six 
innermost (proximal) primaries abruptly, and in adult males con- 
@ The type of Trochilus Linneus, according to recent authorities, is Trochilus polyt- 
mus Linnzeus (type of Aithurus Cabanis and Heine), as designated by Gray in 1840; 
see Allen, Bull. Am. Mus. Nat. Hist., xxiv, 1908, 12. 
