. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fro. 114. Trichostrongylus instahilis; A, female, showing pointed tail and vulva (v.); B, male, showing smaller size and bursa (b.). X 25. (After drawings and measurements by Loess.). BCX'O) Fig. 115. CEsophagosioma stepha- nostomuni var. thomasi. A, immature female in cyst in large intestine of man in Brazil; B, same, removed from cyst. (After Thomas.) dysentery. An allied worm, 0. stephanostomum var. thomasi, a variety of a species normally found parasitic in gorillas in Africa, has been found once in
. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fro. 114. Trichostrongylus instahilis; A, female, showing pointed tail and vulva (v.); B, male, showing smaller size and bursa (b.). X 25. (After drawings and measurements by Loess.). BCX'O) Fig. 115. CEsophagosioma stepha- nostomuni var. thomasi. A, immature female in cyst in large intestine of man in Brazil; B, same, removed from cyst. (After Thomas.) dysentery. An allied worm, 0. stephanostomum var. thomasi, a variety of a species normally found parasitic in gorillas in Africa, has been found once in man in Brazil. In this case there were 187 tumors (Fig. 115A) in the small and large intestines each containing one worm (Fig. 115B). This species will prob- ably be found to be normally parasitic in some species of South American monkey. These and a number of still rarer human parasites are of little interest as far as man is concerned, except as medical curiosities. In connection with the intestinal nematodes there should be mentioned three species of spiny-headed worms (class Acantho-. 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 Chandler, Asa Crawford, 1891-. New York, J. Wiley
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