. The external and internal parasites of [man and] domestic animals. eply tinged with red. The head is simple, obtuse. Themouth is terminal and surrounded by six rounded, chitinouspapillse. The male becomes ten to twelve inches long andone-fourth of an inch in diameter ; the caudal bursa is cup-shaped, circular and entire, without rays ; the male spicule or 132 BOARD OP AGRICULTURE. penis is very slender. The female has a nearly straight,obtuse tail; the anns is triangular, near the end; the genitalorifice ig anterior, near the mouth ; the ovaries and oviductsare simple, but long and convolute
. The external and internal parasites of [man and] domestic animals. eply tinged with red. The head is simple, obtuse. Themouth is terminal and surrounded by six rounded, chitinouspapillse. The male becomes ten to twelve inches long andone-fourth of an inch in diameter ; the caudal bursa is cup-shaped, circular and entire, without rays ; the male spicule or 132 BOARD OP AGRICULTURE. penis is very slender. The female has a nearly straight,obtuse tail; the anns is triangular, near the end; the genitalorifice ig anterior, near the mouth ; the ovaries and oviductsare simple, but long and convoluted. The intestine is largeand blackish, with thin walls, and quite simple, runningdirectly from one end of the body to the other, and is attachedto the sides of the body, along its whole length, by fibres. formidable parasite lives in the kidneys of man andvarious animals. It has been found in the dog, horse, cattle,hog, wolf, weasles, mink, otter, seal, glutton, raccoon, and this country it has been found quite frequently in the kid-Figure bneys of the mink. It has been found very rarely in the blad-der, in the abdominal cavity, and, it is said, in the heart. Inman it is very rare. When lodged in the kidney it gradually,but completely, destroys the substance of the organ, whichbecomes filled with purulent and bloody matter, upon whichthe worm feeds, while the walls often become hardened withcalcareous deposits. The effects and symptoms are the sameas in other acute diseases or abscesses in one of the only positive evidence of the presence of the worm wouldbe the discovery of the eggs in the urine. It is probable thatno remedy can be applied when the parasite is once lodged inthe kidney. The history of this worm is not fully known. Accordingto Leuckart, a slender worm found coiled up in cysts inthe muscles and peritoneum of fishes is tlie young or larva ofsome species of Eusbongylus. The larval form referred to Figure 81.—Ews^rongyZus^it^a
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectparasit, bookyear1870
