91 



studied without regard to " loco," which, if a disease at all, belongs to 

 yearlings aud older sheep. 



Experiments were undertaken with a view of infecthig lambs with the 

 parasites, while the lambs were kept from other possible sources of in- 

 fection ; but these were fruitless. Other experiments wereentered upon 

 with a view of removing these parasites by medicinal remedies. None 

 of these were effective in removing the parasites from the gall-ducts, 

 and were abandoned until more could be learned of the life history of 

 the jiarasite, when they could again be taken up with perhaps a better 

 prospect of success. 



The total results regarding this twnia, so far obtained, are as follows, 

 viz: 



The parasite persists in an adult stage iu the older sheep throughout 

 the year. 



The smallest forais appear in lambs soon after the second month of 

 their age, and may be found in sheep of any age throughout the year, 

 excepting, possibly, the winter months. 



It requires at least six months, possibly ten, to attain an adult size. 



Theovaor embryos are continually passed from thesbeep to the ground 

 throughout the j^ear. The life of the embryo from the time it leaves 

 one sheep until it is found in another is yet undiscovered. 



When present in considerable numbers in sheep it determines a dis- 

 ease which is not only detrimental to the value of the animal, but at 

 times causes the death of large numbers. 



No medicinal remedies can be recommended which will assuredly re- 

 move the parasite from the host. 



Many measures may be taken which may prove to be effective in two 

 ways, first, in preventing sheep from becoming infected; second, in 

 enabling the sheep to better withstand the ravages of the parasite, and 

 thus carry it over the critical stage of its existence. 



The lambs and yearlings are the greatest sufferers, and it is to these 

 that the most attention must be paid. 



TAENIA FIMBRIATA, Diesing. 



Synonymy. — Thysanosoma actininides, Diesing, 1834. Mec>. Jalirl). d. oesterr. Staat. 



Neiie Folge, VII, 105-111. Taf. Ill (Fig. inverse delin.), Ej. Syst. Helm. I, 



501 in uota. 

 Tcenia fimbriata, Diesing. Syst. Helm. I, 501. 

 Tcenia fimbriata, Diesing, 1856. Zwaazlg Arten v. Cephaloootliyleon, p. 11, 1856. 



Wien. 

 Tania fimbriata, Kept. Dept. Agric., 4tli and 5th Annual Repts. of Bureau Aninoal 



Industry, 1887, 1888, p. 167, Pis. I aud II. 



Taenia fimbriata, Diesing, was first discovered by Natterer, in Brazil, 

 in 1824, and published by Dr. K. M. Diesing in 1834, as a new genus, 

 Thysanosoma actinioides. Later, in 1856, Dr. Diesing republished this 

 parasite as Tcenia fimbriata. (See Plate XIII.) 



