. The external and internal parasites of [man and] domestic animals. umors became very large. Sderostoma innguicola Yerrill. On two occasions I have received specimens of a ratherlarge parasitic worm, which lives in the fat of hogs. In thefirst case, five specimens were obtained, at New Haven, byDr. M. C. White, from the fatty portion of a spare-rib ; in thesecond instance, at Middletown, Conn., Dr. N. Cressy foundlarge numbers of the worms in the fat about the kidneys of ayoung Suffolk pig, brought from New Jersey. , none of these specimens are in so good a stateof preservation
. The external and internal parasites of [man and] domestic animals. umors became very large. Sderostoma innguicola Yerrill. On two occasions I have received specimens of a ratherlarge parasitic worm, which lives in the fat of hogs. In thefirst case, five specimens were obtained, at New Haven, byDr. M. C. White, from the fatty portion of a spare-rib ; in thesecond instance, at Middletown, Conn., Dr. N. Cressy foundlarge numbers of the worms in the fat about the kidneys of ayoung Suffolk pig, brought from New Jersey. , none of these specimens are in so good a stateof preservation as to enable me to determine with certaintyall the points of their structure. Those which I owe to thekindness of Dr. White, had been mounted in glycerine asmicroscopic objects and pressed out flat, before they cameinto my possession, and the tissues were thus injured andthe organs deranged. Those from Dr. Cressy, were bothpressed flat and dried. Yet by careful masceration, andwith much labor, I believe that most of the important char-18 138 BOARD OF acters have been made out. The body is rather robust, es-pecially in the female, and tapers to both ends; the color isyellowish white, and the integument is seen to be finelystriated transversely, when considerably magnified. Thehead is smaller than the body, truncated at Figure 83 end; the mouth is terminal, roundish, orsomewhat angular, surrounded by the thick-ened rim of the chitinous capsule, or chitinous ring rises at intervals into fourto six denticles, or very small teeth, whichcorrespond to thickened longitudinal, chitin-ous bands, that strengthen the pharynx, andgive a slightly angular form to the pharynx itself is small, short, and rathersquarish, when seen in profile, and has threeor four small, conical teeth at the oesophagusis thick, club-shaped, and very muscular. The male is of an inch long, and about .05 ofan inch in diameter ; the tail ends in a small blun
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectparasit, bookyear1870
