SUMMARY. 
This bulletin contains four articles on parasitic worms. 
I. A Yery peculiar case of parasitism in man in Florida has been found by 
Doctor Gates, of Manatee. The worms, which live in the subcutaneous tissue 
and cause an acnelite swelling, have been determined as very closely related to, 
perhaps identical with. Sparffanum prolifennn; this parasite has been reported 
on only one former occasion (1905), when it was found in .Japan : its life history, 
source of infection, prevention, and treatment are still unknown : its chief pecu- 
liarity is a reproduction tu its larval stage by means of forming supernumerary 
heads, which may become indei^endent and wander through the tissue. 
II. Filaria restiformis is a worm described as a parasite from man. The 
original specimen has been found and restudied. It proves to be an immature 
horse hair worm and it is therefore exceedingly doubtful whether it was a 
parasite of man. 
III. Some parasites referred to us by an official in Manila and Phrapatoom, 
collected from the cecum of cattle {Bos ) prove to be a new sj)ecies of 
trematixle ( Homalogaster philippinensis) . Some parasites collected from the 
partridge {Francolinus suMorquatiis) in tVest Africa by Dr. F. C. Wellman, and 
referred to us by the American Society of Tropical Medicine, prove to be an 
agamic encysted new si>ecies (Aganiodistomtim nanus) of trematode, rather 
closely related to the genus CUnostomum. It is impossible to state at present 
whether or not it is transmissible to man. but it does not agree with any form 
at present known for man: it is not known at present for any game or other 
birds in the Fnited States. 
IV. A few segments of the original specimen of Tsenia abieiina have re- 
cently been found. They are in very iX)or condition, and this precludes any 
final judgment as to their exact systematic position. They appear as a 
dwarfed si>ecimen of T. sgginata, yet there are certain iudications which point 
to a difference fi'om that species. For the present the form may perhaps best 
be viewed as a possible subspecies of T. saginata. 
All bibliographic references are taken from Stiles, and Hassall, Index-Cata- 
logue of Medical and Veterinary Zoology, Authors, Bull. 3I>, U. S. Bureau of 
Animal Industry. 
All drawings were prepared by Leonard H. Wilder, artist of this laboratory. 
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