618 BULLETIN TiO, UNITED STATES NATIONAL MUSEUM. 



[Selasphorus] floresii Sclateb and Salvin, Nom. Av. Neotr., 1873, 84. — Mul- 



SANT, Ann. Soc. Linn. Lyon, n. s., xxii, 1876, 227. — Sharpe, Hand-list, ii, 



1900, 141. 

 S[elasphor us] floresii Hartert, Das Tieneich, Troch., 1900, 207 (monogr.). 

 [Trochilus] floresii (not of Bourcier, 1846) Gray, Hand-list, i, 1869, 144, no. 1865. 

 T[roehilus] floresii Ridgway, Man. N. Am. Birds, 1887, 315. 

 Trochilus floresii Chapman, Auk, v, 1888, 396. — American Ornithologists' 



Union, Suppl. Check List, 1889, 10; Abridged Check List, 1889, no. 431.1. 

 Calypte floresi Baird, Brewer, and Ridgway, Hist. N.Am. Birds, ii, 1874,453. 

 Calypte floresii Boucard, Gen. Hum. Birds, ii, 1892, 5. 

 Trochilus {8clasj)horus) floresii Ridgway, Man. N. Am., Birds, 1887, 593. 

 Trochilus rubroniitrahis or Selasphorus rubromitratus Ridgway, Auk, viii, Jan., 



1891, 114 (proposed as substitute for specific name floresii, if considered 



preoccupied). 

 Selasphorus ruhromitratus Ridgway, Rep. U. S. Nat. Mus. for 1890 (1891), 341 



(monogr.). 



Genus CALYPTE Gould. 



Calypte a Gould, Monogr. Troch., pt. xi. May, 1856, vol. iii, 1861, text to pi. 134; 



Introd. Troch., oct. ed., 1861, 87. Type, Orrvismya costx Bourcier.) 

 Leucaria Mulsant, Ann. Soc. Linn. Lyon, xxii, 1876, 227 (Cat. des Ois.-Mouch., 



1875, 29). (Type, Ornismya costse Bourcier.) 

 Zephyritis Mulsant and Verreaux, Mem. Soc. Imp. Sci. Nat. Cherb., xii (s6r. 2, 



ii), 1866, 231 (Classif. Troch., 1866, 87). Type, Ornismya anna Lesson or 



0. costae Bourcier.) 



Small to extremely small ^ Trochilidse (length about 55-95 mm.), 

 resembling and closely related to Arcliilochus, but differing in normal 

 inner (proximal) primaries, round-tipped instead of pointed rectrices, 

 lateral rectrices more strongly incurved, the adult males with the 

 "gorget" elongated laterally and the pileum glittering metallic red 

 or violet, like the ''gorget." 



Bill about as long as head or (in C. helenx) shghtly shorter, straight, 

 rather slender, terete or (in C. lielenx) broader than deep basally; 

 culmen rounded, except basally, where contracted into a distinct ridge; 

 tomia smooth; mandible with the usual lateral median groove. 

 Nasal operculum rather broad and convex, but hidden by appressed 

 frontal feathering, which anteriorly extends much beyond anterior 

 end of nostrils, forming a short obtuse point or antia on each side of 

 culmen. Tarsus feathered, except along posterior side; outer toe 

 slightly, the inner more decidedly, shorter than middle toe, the hallux 

 about as long as inner toe. Wing about three times as long as 

 exposed culmen, the outermost primary longest; all the primaries 

 normal in shape. Tail of adult males one-half to nearly three-fifths 

 as long as wing, emarginate (but three outermost rectrices, on each 

 side, subequal in length), the lateral rectrices narrow (less so in C. 

 lielenx), incurved {C. costx), or the reverse {C. anna) terminally, all 



a From KaXunzi], operta. (Gould.) 



^ One species, C. helenx (Lembeye), the smallest of known birds I 



