. Animal parasites and human disease. Insect Vectors; Parasites; Parasitic Diseases; Medical parasitology; Insects as carriers of disease. U Am. Hookworm ncrh size Old World Hookworm not. sue Fig. 100. American hookworm, Necator americanus, male ($) and female (9); , buccal cavity; ph., pharynx; int., intestine; cerv. gl., cervical gland; t., 'testis; sp. d., sperm duct; b., bursa; ov., ovaries and oviducts; v., vulva or genital opening; a, anus. X 8. (Partly after Manson.) also cylindrical but instead of tapering at the tail end they possess an umbrella-like expansion known as a bursa, wh
. Animal parasites and human disease. Insect Vectors; Parasites; Parasitic Diseases; Medical parasitology; Insects as carriers of disease. U Am. Hookworm ncrh size Old World Hookworm not. sue Fig. 100. American hookworm, Necator americanus, male ($) and female (9); , buccal cavity; ph., pharynx; int., intestine; cerv. gl., cervical gland; t., 'testis; sp. d., sperm duct; b., bursa; ov., ovaries and oviducts; v., vulva or genital opening; a, anus. X 8. (Partly after Manson.) also cylindrical but instead of tapering at the tail end they possess an umbrella-like expansion known as a bursa, which is sup-. Fig. 101. Buccal cavity and mouth of Old World hookworm (.4), and American hookworm (B), showing teeth in former and cutting ridges in latter. A, X 100; B, X 230. (After Looss.) ported by clawlike rays somewhat suggestive of the ribs of an umbrella (Fig. 102). The bursa is used for holding the female during copulation. It was the- clawlike ribs of this " umbrella ". 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 C. (Asa Crawford), 1891-1958. New York, J. Wiley & Sons; London, Chapman & Hall
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectparasites, bookyear19
