Elements of pathological anatomy . often occurs in considera-ble numbers. It has alsobeen found in the largebowel, in the stomach,biliary ducts, oesophagus,fauces, and even in thelarynx. In the latter situ-ation, it has been knownto cause suffocation. The usual number ofthis species of worm rangesfrom one to two or threedozens. Occasionally, however, it greatly ex-ceeds this. Thus, ,* of Turin, saw achild who voided, in thecourse of eight days, fivehundred and ten ; and astill more extraordinarycase has recently beenrelated by Dr. J. , of Ohio, in theWestern Journal of Me-dic
Elements of pathological anatomy . often occurs in considera-ble numbers. It has alsobeen found in the largebowel, in the stomach,biliary ducts, oesophagus,fauces, and even in thelarynx. In the latter situ-ation, it has been knownto cause suffocation. The usual number ofthis species of worm rangesfrom one to two or threedozens. Occasionally, however, it greatly ex-ceeds this. Thus, ,* of Turin, saw achild who voided, in thecourse of eight days, fivehundred and ten ; and astill more extraordinarycase has recently beenrelated by Dr. J. , of Ohio, in theWestern Journal of Me-dicine and Surgery. Inthis instance upwards ofeleven hundred, from threeto nine inches in length,were expelled in less thanthree months. Aboutsixty, rolled up in a com-plete ball, came away atone time. The patientwas between two or threeyears of age. The lum-bricoid worm is some-times tied into a knot, asrepresented in Fig. 164,from a specimen in mycabinet. * Brit, and For- Med. Rev., vol. xv., p. 248. INTESTINAL WORMS. 631 Fig. The vermicular species (ascaris vermicularis, oxyurus v., fusaria v.), is ex-tremely small and delicate (Fig. 165), the male being not above Fi 165the sixth of an inch in length, with a very thin tapering body,of a whitish color. The mouth is of an orbicular shape, with abladder-like, transparent membrane on each side : the tail is ispiral and obtuse, and the sexual organ is contained in asheath. The female is considerably larger, being from four to |six lines long, and its tail is as fine as the most delicateneedle. The heads of these worms are in constant motion :from this circumstance they are often called leap-worms: fromthe uneasy, gnawing sensation which they are supposed some-times to occasion in the stomach, they have also received thename of maw-worms ; and, from their filiform configuration,they are vulgarly termed thread-worms. They are found onlyin the large intestines, especially in the rectum, where they areoften collected in vast multi
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