270 PERISTERID A. 
It will therefore be seen that both dark- and light-fronted forms occur in the same 
countries, while examples from Jalapa and Jali in Nicaragua are intermediate. 
Climatic influences are perhaps responsible for the intensity of colour in certain 
specimens, and judging from the evidence at present at our disposal we agree with 
Count Salvadori as to the impossibility of dividing @. albjfacies into two species 
or races. 
Beyond the fact that this, like other species of Geotrygon, is an inhabitant of forest-— 
districts, there is no record of its habits. 
7. Geotrygon chiriquensis. 
Geotrygon chiriquensis, Scl. P. Z. S. 1856, p. 148; Salv. P. Z.S. 1867, p. 159°; 1870, p. 217°; 
Scl. & Salv. Ex. Orn. p. 123, t. 62‘; Boucard, P. Z. 8. 1878, p. 43°; Zeledon, An. Mus. 
Nace. Costa Rica, 1887, p.127°; Salvad. Cat. Birds Brit. Mus. xxi. p.579"; Bangs, Pr. New 
Engl. Zool. Club, iii. p. 24°. . 
Geotrygon ceruleiceps, Lawr. Ann. Lyc. N. Y. ix. pp. 186°, 148"; v. Frantz. J. f. Orn. 1869, 
p- 871"; Salv. Ibis, 1869, p. 317”. 
G. albifaciei similis, sed saturatior et magis castanea; pileo plumbescente, fronte vix dilutiore; plumis 
squamatis colli postici gutturisque absentibus ; corpore subtus castaneo vel saturate cinnamomeo, abdo- 
mine magis ochrascente, gutture albicante. Long. tota circa 10-2, ale 6-0, caudex 3-4, culm. 9°8, tarsi 1°65. 
(Deser. maris ex Castillo, Veragua. Mus. nostr.) 
Hab. Costa Rica, Cervantes (v. Frantzius 4, Zeledon °), El Zarcero de Alajuela 
(Zeledon®), La Candelaria (Zeledon®, Boucard*), Volcan de Irazu (Boucard®), 
Tarrazu (Underwood, in litt.); Panama, David (Bridges!?), Castillo, Calovevora, 
Calobre, Volcan de Chiriqui (Arcé?"), Boquete and Volcan de Chiriqui 4500 to 
10,000 feet (Bronn §). 
This is a southern representative of G. albifacies. M. Boucard® says that the 
‘Paloma del Monte,” which is the name by which it is known to the Spaniards, is 
very scarce in Costa Rica, and that it keeps entirely to the ground. Nothing further 
has been recorded respecting its habits. 
Order GALLIN/E*. 
This Order includes the majority of the species commonly known as “ Game ”-Birds, 
such as Grouse, Quails, Partridges, Pheasants, Turkeys, and Curassows, all of which 
exhibit the following characters:—The nasals are holorhinal, and true basipterygoid 
processes are absent, but represented by sessile facets situated far forward on the 
sphenoidal rostrum. The episternal portion of the sternum is perforated to receive a 
process from the base of the coracoids, and there are two deep notches on each side of 
* I have to acknowledge the assistance of Mr. Ogilvie-Grant in the preparation of the MSS. of the 
Galline. 
