462 : MOMOTIDZ. 
With this bird we place Urospatha martii, as has been already done by Count Berlepsch. 
Urospatha, so far as we can see, differs only in having spatules to the ends of the central 
rectrices, an ornament produced by the bird itself, and, as our specimens show, often 
absent. . 
The number of rectrices is ten, the bill stout and compressed, and the serrations to 
both the maxilla and mandible very large, even coarser than in Momotus. The 
antrorse loral feathers are long, the radii being distinct; these feathers reach beyond 
the nostril when stretched forwards, lying below and not covering the opening. ‘The 
nostrils themselves are at the extremity of the nasal fossa, are slightly oval, and 
bordered behind by membrane. ‘The tarsi are rather strong and have about the same 
relative proportion to the wing as is found in Humomota, and are thus comparatively 
shorter than in Momotus, but the difference is small. 
Of the two species of Baryphthengus, B. marti occurs in the whole of the Upper 
Amazonian region, in Colombia, and in Central America as far north as Nicaragua, 
while B. ruficapillus is found in Eastern and South-eastern Brazil and Paraguay. 
1. Baryphthengus martii. 
Prionites martii, Spix, Av. Bras. ii. p. 64, t. 60°. 
Momotus martii, Gray, Gen. Birds, i. p. 68°; Cassin, Pr. Ac. Phil. 1860, p. 186°; Lawr. Ann. 
Lyc. N. Y. vii. p. 2904; ix. p. 117°; Salv. P. Z.S. 1867, p. 151°; 1870, p. 201°; Ibis, 
1872, p. 820°; v. Frantz. J. f. Orn. 1869, p. 311’. 
Urospatha martii, Salvad. Atti R. Acc. Sc. Tor. iv. p. 179"; Boucard, P. Z. S. 1878, p. 49"; 
Tacz. Orn. Pér. iii. p. 111°; Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 119; Sharpe, 
Cat. Birds Brit. Mus. xvii. p. 314”. 
Momotus semirufus, Scl. Kev. Zool. 1853, p. 489”; P. Z. 8S. 1857, p. 254°; Schl. Mus. Pays-Bas, 
Momotus, p.5™; Scl. & Salv. P. ZS. 1864, p. 863. 
Supra viridis, capite, cervice et corpore subtus usque ad medium ventris lete castaneis, gutture paulo dilutiore ; 
loris, capitis lateribus cum tectricibus auricularibus et plaga pectorali nigerrimis; hypochondriis et ventre 
imo, tibiis et tectricibus subcaudalibus viridibus ceeruleo tinctis; remigibus nigris, extrorsum saturate 
cyaneis, in pogoniis internis apud rhachidem nigram viridibus, alula spuria cyaneo marginata; cauda 
subtus nigra, supra viridi cerulea, rhachidibus nigris ; rostro nigro ; pedibus saturate corylinis. Long. 
tota 22:0, ale 6°3, caude rectr. med. 13:5, rectr. lat. 2°8, rostri a rictu 2°4, tarsi 1:3. (Descr. maris ex 
Panama, Mus. nostr.) 
@ mari similis, a 
Hab. Nicaragua, Chontales (Bel¢*), La Libertad (W. B. Richardson); Costa Rica 
(Durando'°), San Carlos (v. Frantzius®, Boucard™), Pacuare (v. Frantzius®, 
Carmiol®), Angostura (Carmiol 14), Naranjo de Cartago, Jimenez (Zeledon 3%) ; 
Panama, Santa Fé®, Santiago®, Calobre’ (Arcé), Lion Hill (M*Leannan ‘4 8), 
R. Nercua (C. J. Wood*).—Soutn America, from Colombia! and Upper 
Amazons !, to Peru !? and Bolivia!4; Para}. 
Baryphthengus martii was discovered by Spix during his travels in Brazil, and named 
after his companion and coadjutor in their great work on the fauna and flora of that 
