464 MOMOTID£. 
the conspicuous black stripe, bordered with blue, of the middle of the throat perhaps 
represents the black pectoral spot of many other species ; the conspicuous superciliary 
stripe is a modification of the blue cincture of Momotus lessoni and its allies. The tail 
differs from that of all other species in having the two central feathers very much 
longer than the rest, and ending in a very large spatule, between which and the ends of 
the next pair of feathers the shaft is denuded. 
The range of Humomota is restricted to Central America—in the north occurring in 
Yucatan and Tehuantepec, and in the south not passing beyond the limits of Costa 
Rica. 
1. Eumomota superciliaris. 
Prionites superciliaris, Sandbach, Rep. Brit. Assoc. 1837, p. 99’. 
Prionites (Crypticus) superciliaris, Jard. & Selby, Ill. Orn. iv. t. 18°. 
Eumomota superciliaris, Scl. P. Z. 8. 1857, p. 257°; Scl. & Salv. Ibis, 1859, p. 182°; P. ZS. 
1870, p. 837°; Owen, Ibis, 1861, p. 64°; Lawr. Ann. Lye. N. Y. ix. p. 204"; Bull. U.S. 
Nat. Mus. no. 4, p. 30°; v. Frantz. J. f. Orn. 1869, p. 311°; Scl. Ibis, 1873, p. 373”; 
Boucard, P. Z. 8S. 1878, p. 49"; 1883, p. 453°; Sumichrast, La Nat. v. p. 289"; Nutting, 
Pr. U.S. Nat. Mus. v. p. 399”; vi. p. 387"; Salv. Cat. Strickl. Coll. p. 413 °°; Ibis, 1889, 
p- 371; 1890, p. 88"; Gaumer, Trans. Kansas Ac. Se. vill. p. 65 (1883) *°; Stone, Pr. 
Ac. Phil. 1890, p. 206*°; Sharpe, Cat. Birds Brit. Mus. xvii. p. 317”. 
Spathophorus superciliaris, Cab. & Heine, Mus. Hein. 11. p. 112”; Cab. J. f. Orn. 1861, p. 255 ™. 
Crypticus superciliosus, Swains. An. in Men. p. 358; Less. Deser. Mamm. et Ois. p. 267”. 
Crypticus apiaster, Less. Rev. Zool. 1842, p. 174*°. 
Momotus yucatanensis, Cabot, Pr. Bost. Soc. N. H. 1848, p. 156. 
Viridis, dorso medio cinnamomeo lavato, superciliis latis argenteo-ceruleis, loris et lincis supra et infra oculos 
cum tectricibus auricularibus elongatis nigris, macula post oculari cinnamomea, plumis nigris infra oculos 
et ad mandibule basin ceruleo terminatis, gutture medio nigro utrinque plumis elongatis ceruleis margi- 
nato, abdomine cinnamomeo; alis extus ceruleis nigro terminatis, tectricibus majoribus nigris; cauda 
cerulea, rectricibus omnibus rhachidibus nigris et nigro terminatis; rostro nigro; pedibus corylinis. 
Long. tota circa 15:0, ale 4°6, caude rectr. med. 9-3, rectr. lat. 2°6, rostri a rictu 0°9, tarsi 0°85. 
(Descr. maris ex San Gerdénimo, Guatemala. Mus. nostr.) 
@ mari similis. 
Hab. Mexico, Bay of Campeche (Mus. Brit.1*?!), N. Yucatan (G. F. Gaumer 2), 
Merida (Schott"), Temax 1°, Buctzotz, Peto, Meco I.17 (G. F. Gaumer), Tekanto, 
Tunkas, Ticul (Stone & Baker?°), Tapana 18, Cacoprieto § 1%, Santa Efigenia }3 
in Tehuantepec (Sumichrast) ; GuatemaLa!®, Zacapa and Motagua Valley, San 
Geronimo ° (0. S. & F. D. G.7', R. Owen), Retalhuleu (W. B. Richardson 1), San 
José de Guatemala! to Escuintla and Palin, Medio Monte (0. 8. & F. D. G.); 
Satvapor, La Libertad, San Miguel (W. B&. Richardson) ; Honpuras, San Pedro 
(G. M. Whitely®); Nicaracua, Chontales (Belt !°), Sucuyd (Nutting 1°), Chinandega 
(W. B. Richardson ?°); Costa Rica (£lendorf 22), Bebedero in Nicoya (Arcé *!), 
La Palma (Nutting 1+), Barranca (Boucard 1). 
This species, the most beautiful of its family, was first made known to science at the 
