The diseases of infants and children . 6()5 childrenin Alabama, ascarides being found in but percent.; and Schloss found it present in 14 out of 230children examined ( per cent.). Its most frequenthabitat is the small intestine of species of rats andmice. The parasite is only J2 to 1 inch ( to ) long, and has a spherical armed head, and 150 or more short mikIbroad proglottides each containing 80 to 100 eggs. It occurs cliicfly inciiildreii and often in very large numbers in a shigle case. Evennurslings may Ix; affected. The intermediate host is unknown, and itis possible ti
The diseases of infants and children . 6()5 childrenin Alabama, ascarides being found in but percent.; and Schloss found it present in 14 out of 230children examined ( per cent.). Its most frequenthabitat is the small intestine of species of rats andmice. The parasite is only J2 to 1 inch ( to ) long, and has a spherical armed head, and 150 or more short mikIbroad proglottides each containing 80 to 100 eggs. It occurs cliicfly inciiildreii and often in very large numbers in a shigle case. Evennurslings may Ix; affected. The intermediate host is unknown, and itis possible tiiat none exists, but that the larva occupy the mucous mem-brane of the intestine and there develop into the perfect worm. f. u. , Orin-, Ht, XXWIII, .%M. - Wicn. Klin. XX!V, ) •^ ruhlic Ilcillli Miiil . llnsp. Service, l. S. * Colonido . , \il. »»;{. ^ .Vnier. .lour. Dis. ( ). X. AM. « .\rcli. (»f Ted., ). XWll. I(H»,. Fig. 268.—Hymeno-lepsis , One-half actual size; B, enlurncd; showing head ant! suckers. (Srhloss, P,( HMO, AA17/, 101.) IMil Mull. \... IS. 826 THE DISEASES OF CHILDREN Dibothriocephalus Latus; Fish Tapeworm.—The head of this para-site is small, wedge-shaped, grooved on each side, and unarmed with beakor hooklets. The proglottides are broader than long, measuring i^ to ^^inch ( to cm.) in breadth and but about }i inch ( cm.) inlength. This feature easily distinguishes the parasite from other tape-worms. The sexual openings are on the surface of the proglottides in-stead of at the edge as in other varieties, and the uterus is rosette-shaped,instead of branched. The eggs are about 3^^oo inch ( cm.) long and3^^ 00 inch ( cm.) broad, and are characterized by a lid-shapedclosure at one end. After leaving the intestine the ova develop in waterinto a free-swimming infusorial organism, and then by way of the in-testin
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