116 . PIPRIDZ. 
feature so common in the Tyrannide. In our country we find two species of the first 
section and none of the second. | 
They are dull-coloured birds, alike as to the sexes, and without bright markings of 
any sort. Their range extends from Southern Mexico to Panama, and the allied 
southern forms spread over most of Tropical America to South-eastern Brazil. Like 
other Pipride they are found only in dense forest. 
The bill is much more compressed than in the typical Piprine, and the subterminal 
maxillary notch is very distinct; the nostrils are elliptical and open, and are situated 
at the lower end of the nasal fossa; the rictal bristles are well developed. The wings 
are rounded, the fourth primary a little longer than the third and fifth, the first equals 
the tenth. The tarsi and toes are slender, the outer toe united to the middle toe a long 
way from the base. 
1. Heteropelma verez-pacis. 
Heteropelma vere-pacis, Scl. & Salv. P. Z.S. 1860, p. 300"; 1870, p. 837°; Ibis, 1860, p. 400°; 
Scl. P. Z. S. 1862, p. 19*; Cat. Birds Brit. Mus. xiv. p. 320°; Lawr. Ann. Lyc. N. Y. vii 
p- 473°; ix. p. 1167; Salv. P. Z. S. 1870, p. 200°. 
Supra olivaceo-brunneum ; alis et cauda rufescentioribus ; abdomine medio olivaceo: rostro et pedibus corneis, 
mandibule basi pallida. Long. tota 6-5, ale 3°5, caude 2°5, rostri a rictu 0°8, tarsi 0°38. (Descr. maris 
ex Choctum, Guatemala. Mus. nostr.) 
@ mari similis. 
Hab. Mexico, Playa Vicente (Boucard*); British Honpuras, Orange Walk (Gaumer) ; 
GuaTEMALA, Choctum 1, Yzabal (0. S & F. D. G.); Honpuras, San Pedro (G. WV. 
Whitely 2); Costa Rica, Balza, Angostura, Cervantes (Carmiol) ; Panama, Volcan 
de Chiriqui, Bugaba, Chiriqui, Castillo, Chitra, Calovevora (Arcé §). 
The specimens of this species from Costa Rica and Panama are rather darker than 
typical examples from Vera Paz, but the difference is hardly tangible. The darkest of 
all our specimens are from Chitra and Calovevora, these contrast strongly with examples 
obtained close to the line of railway which we attribute to H. stenorhynchum.  Hetero- 
pelma vere-pacis is an inhabitant of the forest-region of Eastern Guatemala, where it is 
not uncommon; it spreads northward to Playa Vicente in the Mexican State of Vera 
Cruz*. Its range in altitude extends from the sea-level to an altitude of about 
1500 feet. It frequents the undergrowth of the lofty forest, keeping near the ground. 
2. Heteropelma stenorhynchum. 
Heteropelma stenorhynchum, Scl. & Salv. P. Z.S. 1868, pp. 628, 632"; Scl. Cat. Birds Brit. Mus. 
xiv. p. 320°. 
Heteropelma vere-pacis, Salv. P. Z.S. 1883, p. 424°. 
Preecedenti similis, sed supra pallidior; alis minus rufescentibus, pileo rufescente tincto, abdomine toto grises- 
cente. (Descr. exempl. ex Panama. Mus. nostr.) 
Hab. Panama (A. H. Markham *, Arcé).—VENEZUELA 1, 
