. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. 396 LICE form a little pus, sufficient in very negligent individuals to make the hair mat together. According to Stiles, if this is allowed to run on, a regular carapace may form, called trichoma, in which fungous growths may develop, and under which the lice abound, and the head may exude a fcetid odor. Crab Louse. — The crab louse, Phthirius pubis (Fig. 176), is quite distinct from the other two species of human lice. It has a very broad short body with long, clawed legs, presenting the general appear
. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. 396 LICE form a little pus, sufficient in very negligent individuals to make the hair mat together. According to Stiles, if this is allowed to run on, a regular carapace may form, called trichoma, in which fungous growths may develop, and under which the lice abound, and the head may exude a fcetid odor. Crab Louse. — The crab louse, Phthirius pubis (Fig. 176), is quite distinct from the other two species of human lice. It has a very broad short body with long, clawed legs, presenting the general appearance of a tiny crab, from which it derives its name. The first pair of legs are smaller than the others and do not. Fig. 176. Crab louse, Phthirius pubis, £. X 35. possess a " thumb " in apposition to the curved claw. The abdomen is composed of six segments, and is markedly festooned along the sides. This louse is grayish white in color, with dark shoulder patches and slightly reddish legs. The females are about TV of an inch in length, the males somewhat smaller. The favorite haunts are the pubic regions and other parts of the body where coarse hair grows, as in the armpits and in the beard and eyebrows. Unlike the other human lice this species is almost exclusively confined to the Caucasian race. The females produce from ten to 15 eggs and glue them, one at a time, to the coarse hairs among which they live. A number. 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, inc. ; London, Chapman & Hall
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmedical, bookyear1918
