304 Veterinary Medicine. 



second day sucking discs and hooklets may be visible. After 2% 

 to 5^ months the scolex is viable in the intestine of the dog. 

 (Kuchenmeister). 



Transmission from the sheep to the dog will sometimes fail 

 through diarrhoea in experimental cases. As many as 400 taenia 

 have been developed from one cyst. They attain a length of four 

 inches in four weeks. The writer raised forty-two, averaging 

 one foot, in six weeks in a sucking puppy. 



The symptoms of taenia ccenurus in the dog are the same as 

 of other tape- worms. The ripe segments passed are characteristic. 



Symptoms of Ccenurus Cerebralis : Gid : Sturdy: Stag- 

 gers : Turnsick : Waterbrain. The signs of cerebral conges- 

 tion (dulness, red eyes, hot head, drooping or held in one direc- 

 tion, spasms or paralysis) may appear in eight days after a lamb 

 or calf has been fed a ripe segment of the tape-worm, but usually 

 but one, two or three ova are taken in with the grass, and sup- 

 pose all reach the brain, they are unable to produce these early 

 manifestations. In an experimental case with five cerebral 

 coenuri the first symptoms were observed on the 1 14th day. 

 (Baillet). 



The symptoms are, at first, great timidity and nervousness 

 without apparent cause, or dulness, stupor, general aberration of 

 the senses and disorderly muscular movements. The sheep is 

 found apart from the flock with dilated pupils, blindness, reddened 

 eyes covered with half-closed lids, and unsteady gait, but usually 

 moving restlessly in one given direction. Alternate .subsidence 

 and exacerbation of symptoms are not uncommon, the latter cor- 

 responding to the occasions on which the heads of the scolices are 

 protruded into the brain substance, the former to their periods of 

 withdrawal within the cyst. 



The symptoms vary according to the position and number of 

 the hydatids. If in the usual position, in one hemisphere, and 

 over the lateral ventricle, the lamb turns to that side, moving in 

 a circle, like a horse in a mill, making a bare beaten circular 

 path. The limbs on the opposite side of the body act in a stiff 

 disorderly manner, being paretic. If a ccenurus exists in each 

 hemisphere the lamb turns to that side on which the irritation is 

 greatest at the time, going to the left at one time and to the right 

 at another. When it is directly in the median line, over the 



