. Zoology for high schools and colleges. Zoology. ETDATID8 OF THE SHEEP. 161 ing the colony. This hydatid also infests cattle, the horse, goat, vai'ious species of antelope and deer, the dromedary, and, it is said, the rabbit. " In the sheep the disease is rec- ognized at first by a heavy, stupid, wandering gait, which. Fig. 110.—^, brain of a sheep which three weekg previous had swallowed some eggs oi T. canurus, and which was killed after having shown all the symptoms of " stag- ; B b, isolated gallery formed hy the worm at the surface of the brain, the eco- lex being fou
. Zoology for high schools and colleges. Zoology. ETDATID8 OF THE SHEEP. 161 ing the colony. This hydatid also infests cattle, the horse, goat, vai'ious species of antelope and deer, the dromedary, and, it is said, the rabbit. " In the sheep the disease is rec- ognized at first by a heavy, stupid, wandering gait, which. Fig. 110.—^, brain of a sheep which three weekg previous had swallowed some eggs oi T. canurus, and which was killed after having shown all the symptoms of " stag- ; B b, isolated gallery formed hy the worm at the surface of the brain, the eco- lex being found at the end of the gallery. Be, vesicle (proscoles) before the birth of the scolex. B d, vesicle in which the scolices will appear. C, vesicles which have OToducedfiomescolices. i>, the hydatid vesicle contaimng f?^?, the secondary vesicles. X scolex of T. ccenurus. corresponding to a secondary vesicle Z) g, and very much magnified and invaginated. a, point at which the head of the worm will issue out; b, point of junction with the hydatid vesicle ; c, l^ooks ; d, the suckers ; e, the neck ; /, the wall of the hydatid cyst.—After IJeneden. is frequently succeeded by irregular, tortuous, whirling movements of the body, accompanied with convulsions (Cob- bold). The simplest form in the order is Caryophyllmus, in which the body is not jointed in the adult, though it is so. 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 Packard, A. S. (Alpheus Spring), 1839-1905. New York, H. Holt and Company
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