. Bulletin - United States National Museum. Science. Figs. 94-95.—Heterakis psophiae. 94, Male tail. assos, 1913 95, Vulva. After Trav- HETERAKIS PUSILLA Linstow, 1906 Hosts.—Gallus gallus and Gallus lafayettU. This species is listed from the chicken by Gedoelst. Linstow described it from G. lafay- ettii and there appears to be no definite record from the chicken. Location,—Ceca. Morphology.—Heterakis (p. 50) : Head with small rounded lips. Male 5 mm. long by 190/a wide. Esophagus 1/5 of body length. Tail (fig. 96) comprises 1/12 of body length and is finely pointed. Left spicule 530/* long; r
. Bulletin - United States National Museum. Science. Figs. 94-95.—Heterakis psophiae. 94, Male tail. assos, 1913 95, Vulva. After Trav- HETERAKIS PUSILLA Linstow, 1906 Hosts.—Gallus gallus and Gallus lafayettU. This species is listed from the chicken by Gedoelst. Linstow described it from G. lafay- ettii and there appears to be no definite record from the chicken. Location,—Ceca. Morphology.—Heterakis (p. 50) : Head with small rounded lips. Male 5 mm. long by 190/a wide. Esophagus 1/5 of body length. Tail (fig. 96) comprises 1/12 of body length and is finely pointed. Left spicule 530/* long; right spicule 150^, long. Caudal sucker round. Four pairs large postanal papillae, the interval in the case of the 2 posterior pairs greater than the intervals for other adjacent pairs. Female mm. long by 240/* wide. Esophagus length equal to 5/29 of body length. Tail length equal to 2/19 of bod}^ length; long and pointed. Vulva 12/17 of body length behind head end. Eggs thick-shelled, 65/u. long by 3Lu wide. Life history.—Probably similar to that of H. gallinae (p. 54). Distribution.—Northern Province (Mamadu). This locality could not be definitely located but is thought to be in the Uganda Protec- torate, British East 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 Docs. , U. S. Govt Print. Off.
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