1862. ] DR. T. S. COBBOLD ON HUMAN ENTOZOA. 307 
Eight-and-forty days subsequent to the feeding (7. e. reckoning from 
the earliest days of alimentation, for the feedings were continued at in- 
tervals up to the eighteenth day) Prof. Leuckart extirpated the left 
cleido-mastoid muscle, and whilst performing the operation had the 
satisfaction of seeing the cysticercus-yesicles lodged within the 
muscles. They were larger and more opalescent than those of Cys- 
ticercus (Tenia) cellulose, but, nevertheless, permitted the recogni- 
tion of the young worms through their semitransparent coverings. 
The heads of the contained cysticerci exhibited all the distinctive 
peculiarities presented by the head of the adult strobila (Tenia me- 
diocanellata) ; and thus, taking the results of this experiment in 
connexion with previously ascertained facts, we are supplied with the 
most unequivocal evidence that man becomes infested by this second 
form of Tapeworm by eating imperfectly cooked veal and beaf. In 
all probability, other animals are not liable to harbour the Cys¢icercus 
tenia mediocanellate ; for Leuckart also tried to infect a sheep (to 
which he administered about sixty proglottides) ; but, on examining 
the flesh after the lapse of eight weeks, he failed to detect the pre- 
sence of a single cysticercus-vesicle*. 
23. TmNIA ACANTHOTRIAS, Weinland. 
T. (Cysticercus) acanthotrias, Weinland, Moquin-Tandon, Leuck- 
art. 
Acanthotrias, Weiuland. 
The specific distinctness of this new Tapeworm is founded on the 
examination of several cysticerci, ‘“ preserved in the Collection of 
the Medical Improvement Society, Boston, and in the Anatomical 
Museum, Cambridge, U.S.’ From twelve to fifteen of these cysts 
were found by Dr. Jeffries Wyman (1845) in the muscles of a woman 
about fifty years of age—a dissecting-room subject at Richmond, Va. 
Dr. Weinland, of Frankfort, during his stay in America (1858), on 
carefully examining one of these cysticerci, made the very curious 
and, in some respects, unique discovery that its rostellum was fur- 
nished with three rows of hooks, fourteen in each, the hooks them- 
selves presenting the usual characters. Dr. Weinland proposes to 
elevate this species as the type of a new genus (Acanthotrias) ; but 
unless the (yet to be discovered) strobila displays other characters 
differing from those of ordinary Tapeworms, it is, perhaps, better to 
retain it among the Tenie. 
24, THNIA FLAVOPUNCTA, Weinland. 
T. flavopuncta, Weinland, Moquin-Tandon, 
? T. favomaculata, Molin. 
Hymenolopis flavopuncta, Weinland. 
The existence of this worm as a distinct species is also due to the 
* Since the above was written, I have received from Mr. Frederick Turner, of 
265 Fern Bank, Glossop Road, Sheffield, a finely preserved Tapeworm-head for 
examination. ‘‘It was from a very long worm,” and is undoubtedly referable to 
Tenia mediocanellata, as the Society will perceive by inspection. 
