306 DR. T. S, COBBOLD ON HUMAN ENTOZOA. __[Nov. 25, 
with Prof. van Beneden, that here lies the secret of MM. Pouchet 
and Verrier’s adverse conclusions. 
22. TaHNIA MEDIOCANELLATA, Kiichenmeister. 
T. mediocanellata, Kiichenmeister, Miller, Gurlt, Eschricht, Van 
Beneden, Leuckart, Weinland. 
T. solium, Bremser (and others, in part). 
T'. dentata, Nicolai. 
T. cucurbitina grandis saginata, Goeze. 
T. inermis, Moquin-Tandon. 
T. tropica, Moquin-Tandon. 
?T. e capite bone spei, Kiichenmeister. 
?T. capensis, Moquin-Tandon. 
Teniarhynchus mediocanellata, Weinland. 
Cysticercus tenie mediocanellate, Leuckart. 
The establishment of this species as distinct from 7’. solium is un- 
questionably due to Kiichenmeister ; but it is not a little curious to 
observe how accurately this determination was foreshadowed by that 
shrewd naturalist and theologian, J. A. E. Goeze, who, in his 
‘Versuch einer Naturg. der Engeweidewiirmer thierischer K6rper,’ 
clearly indicates two forms of the common Tapeworm, remarking 
(p. 278) :—* Die erste ist die bekannte grosse, mit langen dicken 
und gemisteten Gliedern, die ich Tenia cucurbitina, grandis, sagi- 
nata, nennen will.” The same author (p. 245), it will be remem- 
bered, also pointed out the resemblance subsisting between the tape- 
worm of the cat (7. erassicollis) and the vesicles (‘‘ Krystallblasen ”’) 
and their contained “erbsférmige Blasen’’ (Cysticercus fasciola- 
ris) of the mouse. It is unnecessary here to indicate the distinctive 
peculiarities of the two species ; but the characters presented by the 
head are certainly insufficient to warrant the formation of a new 
genus for the reception of this species. Thinking otherwise, Dr. D. 
F. Weinland has suggested the generic title of Tniarhynchus. In 
regard to the original development of this hookless flat-headed tape- 
worm, the recent experimental researches of Leuckart incontestably 
prove that the “ measles,” or Cysticerci which produce it, are to be 
found in the muscles and internal organs of cattle ; and in his valu- 
able work (‘Die menschlichen Parasiten,’ p. 406 e¢ seq.), now in 
course of publication, he gives a condensed account of his experi- 
ments with the fresh eggs of Tenia mediocanellata. He fed two 
calves with the proglottides of this worm. The first animal experi- 
mented on died from a violent attack of the measle-disease, which 
resembles a kind of leprosy. On dissecting this calf, the muscles 
were found filled with measles, or imperfectly developed scoleces. 
On the second occasion a smaller number of proglottides (in all about 
fifty) were administered ; but the febrile symptoms again appeared 
with such virulence that Leuckart thought this animal would die 
also. Fortunately, after the lapse of a fortnight from their com- 
mencement, some abatement of the disease took place ; and this gra- 
dually continued until the animal was perfectly restored to health. 
