Genus ANHINGA. Anhinga Brisson, Ornith., i, p. 60, vi, p. 476 (1760).
Type by taut., Plotus anhinga Linn.
In this genus the bill is slender, straight, very sharp-pointed,, with both margins of the commissure toothed near the tip; no lateral groove, the nostrils are small, basal and linear; neck very slender, with a bend at the 8th and 9th vertebrae which enables the bird, by suddenly straightening its neck, to transfix its fishy prey. The wings are pointed, third quill longest; scapulars elongate and lanceolate; tail of twelve long, rigid feathers and cuneate in shape.