. Bulletin - United States National Museum. Science. NEMATODE PARASITES OF BIRDS 65 Female 9 to 12 mm. long by 425 to 470/*, wide. Esophagus 1, tail 1 of total body length; the tail ends in a very long slender point as in the oxyurids. Vulva a little anterior to middle of body, dividing the body in a ratio of 22: 25; posterior to it a row of 2 to 3 papillae, and at times a papilla anterior to it. The number and posi- tion of these vulvar " papillae " are not constant and Baylis and Daubney (1922) suggest they are due to the action of the sucker of the male in attempting copul
. Bulletin - United States National Museum. Science. NEMATODE PARASITES OF BIRDS 65 Female 9 to 12 mm. long by 425 to 470/*, wide. Esophagus 1, tail 1 of total body length; the tail ends in a very long slender point as in the oxyurids. Vulva a little anterior to middle of body, dividing the body in a ratio of 22: 25; posterior to it a row of 2 to 3 papillae, and at times a papilla anterior to it. The number and posi- tion of these vulvar " papillae " are not constant and Baylis and Daubney (1922) suggest they are due to the action of the sucker of the male in attempting copulation. Eggs 70 to 75/x long by 42 to 46/* wide. Life history.—Probably similar to that of H. gallinae (p. 54).. 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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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
