An egg of this species laid in confinement in the aviary of Dr. Bachman, in Charleston, S. C., is of a rounded-oval shape, and of a uniform creamy-white color; it measures 1.43 inches in length by 1.10 in breadth.
Family CRACIDÆ.—The Curassows.
Char. Body large, but rather slender; bill more or less arched; tail lengthened; legs long, robust, without any spur. Toes moderate, slender, the hinder scarcely elevated. Naked spaces frequently occurring on the head and throat.
Messrs. Sclater and Salvin, in their masterly and model monograph of Cracidæ (Pr. Zoöl. Soc. 1870, 504), define the subfamilies as follows:—
A. Post-acetabular area narrow; upper mandible higher than broad; culmen compressed … I. Cracinæ.
B. Post-acetabular area broad; upper mandible broader than high; culmen depressed.
Top of head covered with feathers; space between the nostrils naked; nostrils exposed … II. Penelopinæ.
Top of head with a bony tubercle; internasal space densely feathered; nostrils concealed … III. Oreophasinæ.
By the term “post-acetabular area” is understood that portion of the dorsal aspect of the pelvis which is bounded in front by a line drawn through the acetabula.