. Bulletin - United States National Museum. Science. NEMATODE PARASITES OF BIRDS 59 Lifi history.—Probably similar to that of II. gallinae (p. 54). Distribution.—South America (Brazil). HETERAKIS BREVISPICULUM Cendre, 1911 Hosts.—Francolinus bicalcaratus, Gallus gallus, and Numida meleagris. I o < <i t io 11.—Cec a. Morphology.—Heterakis (p. 50) : These worms are very similar to //. gallinae (p. 53), but the males have short, equal spicules and the sucker rim (fig. 77) is broken by papillae on each side, as well as by the papilla in the posterior rim. Male '14 to mm. long by 250
. Bulletin - United States National Museum. Science. NEMATODE PARASITES OF BIRDS 59 Lifi history.—Probably similar to that of II. gallinae (p. 54). Distribution.—South America (Brazil). HETERAKIS BREVISPICULUM Cendre, 1911 Hosts.—Francolinus bicalcaratus, Gallus gallus, and Numida meleagris. I o < <i t io 11.—Cec a. Morphology.—Heterakis (p. 50) : These worms are very similar to //. gallinae (p. 53), but the males have short, equal spicules and the sucker rim (fig. 77) is broken by papillae on each side, as well as by the papilla in the posterior rim. Male '14 to mm. long by 250 to 300/* wide. The spicules (fig. 76) 400/* long and equal; sucker as described above. The. Fig. 74.—Heterakis brasiliana. Male tail. After Travassos, 1918 spicules are shaped like a small nail, with an enlarged head and with its tip united to a dorsal prominence by an oblique line. Travassos has described II. gallinae from Brazil as having equal spicules 270/* long. Apparently he had one of the species similar to this one, with equal spicules. Caudal pupillae (fig. 75). Femah to mm. long by 260 to 360/* wide. The vulva is in the middle of the body. The eggs are elliptical. 63/* long by 30/* wide, and deposited before the formation of the embryo. Life history.—Probably similar to that of //. gallinae (p. 54). Distribution.—Africa (Dahomey and Belgian Congo) and South America ( Brazil). HETERAKIS CAUDATA Linstow, 1906 Hosts.—Anas sj>ohs<i and Lampronessa sponsa. Location.—Ceca. Morphology. ^-Heterakis (p. 50): Three semicircular lips. Esophagus with Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of D
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