Intestinal Parasites in Sheep and Goat. 283 



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Lamblia Intestinalis. This pyriform, flagellate infusorium 

 (9 to 16 jit by 4 to 7 IX.) has been found by Blanchard in the intes- 

 tines of sheep. It is common in man, and rodents (rats, mice, 

 field mice). It has three flagella attached around the sucker and 

 one extended back from the posterior of the body. Pathogenesis 

 unknown. 



Coccidium Perforans and Coccidium Oriforme are both 

 found in the intestines and may cause congestion and inflamma- 

 tion. 



CESTOIDS. TAPE-WORMS. 



As many as eight different species of taenia infest the intestines 

 of sheep. All are unarmed and in no case has the cystic form 

 been discovered. 



Taenia Expansa and TcBnia Alba, already described as occur- 

 ing in the ox are also common in sheep. One or two may do 

 little harm but when present in large numbers they may prove 

 very destructive. 



Taenia Benedini. Head small, globular, with four suckers 

 but no proboscis nor booklets ; narrow neck ; broad, short, thick 

 segments. Length up to 12 feet. Ova polyhedral 75 to 80 /it in 

 diameter. 



Taenia Fimbriata. (See Parasites of Liver). 



Taenia Vogti. This is only known by a headless specimen 

 described by Moniez. It measured 17 inches, was very thin and 

 flat, and its mature segments were 5 mm. long, by 2.5 mm. broad. 



Taenia Ovilla (Rivolta), T. Giardi (Moniez), T. Aculeata 

 (Perroncito). Head tetragonal, without rostrum or booklets : 

 neck long and narrow ; segments short and broad, up to 10 mm. 

 broad and 1.5 mm. long: genital pore single, and irregularly 

 alternated, right and left. Length 6 feet or more. Ova round 

 or ovoid. 



Taenia Centripunctata. This receives its specific name 

 from the presetice of a raised white spot representing the uterus 

 in the centre of each ripe segment. The head is tetragonal, un- 

 armed, and followed by a narrow neck, gradually widening in 

 the body to 2 or 4 mm. and again narrowing to i mm. The 

 length of the segment encreases to the last (.3 mm.) as does also 

 the thickness. Length 10 feet. Ova few and globular. 



