298 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I50 



cause the animals to go mad. Apparently this notion has come down 

 from early contact with Indians, since Wafer (Isthmus Amer., 1699, 

 p. 116) writes that the "Indians either throw the Bones of the 

 Corrosou into the River, or make a Hole and bury them, to Keep 

 them from their Dogs, being thought unwholesome for the Dogs to 

 eat ; and the Indians say they will make the Dogs run mad." 



The Cuna Indians at Armila called this species sihgi (pronounced 

 with the g hard). 



Crax rubra rubra ranges from northern Mexico south through 

 Central America to the Atrato Basin, the Baudo Mountains of 

 northwestern Colombia, and western Ecuador. A subspecies, C. r. 

 griscomi, distinguished by smaller size, with the wing in the male 

 325 to 355 and in the female 320 to 330 mm., is restricted to Isla 

 Cozumel off the coast of Quintana Roo. 



PENELOPE PURPURASCENS AEQTJATORIALIS Salvadori and Festa: 

 Crested Guan; Pava Cimba 



Figure 51 



Penelope aequatorialis Salvador! and Festa, Boll. Mus. Zool. Anat. Comp. Torino, 

 vol. 15, no. 368, Feb. 19, 1900, p. 38. (Rio Peripa, vifestern Ecuador.) 



Form slender, pheasantlike, with long, thin neck, bare reddish- 

 colored throat, small bushy crest, and long tail ; size of a small hen 

 turkey. 



Description. — Length, 720-800 mm. Adult (sexes alike), crown, 

 sides of head, and hindneck dark clove brown, with a slight bronzy 

 sheen; upper back, wings, and outer tail feathers blackish brown, 

 with a distinct sheen of dark green; middle of back to upper tail 

 coverts dark russet; lower foreneck, breast, and sides like back, but 

 feathers edged broadly with black ; abdomen, flanks, tibia, and under 

 tail coverts dull chestnut ; under wing coverts like back. 



Immature, like adult, but with wing and tail feathers washed with 

 rufous-brown, and mottled with blackish brown. 



A young chick in the Museum of Zoology at the University of 

 Michigan, found on Barro Colorado Island by J. Van Tyne on April 

 19, 1926, with wings large enough to permit flight, and developing 

 tail, but otherwise in down, is colored as follows: Forehead, line 

 over eye, crop region, foreneck, rump, and area of lesser wing 

 coverts sayal brown; line on either side of crown, extending down 

 either side of hindneck, pale olive-gray; rest of crown black; hind- 

 neck blackish brown; upper back basally pale neutral gray, tipped 

 lightly with sayal brown ; greater wing coverts mouse brown, tipped 

 with black, with sayal brown down filaments still adhering to the 



