88 Parasites of Foxes 
in order to determine definitely its relation to the species described by 
Stiles. 
Theileria sp. Yakimoff and his associates have reported (1917) the finding 
of an undetermined species of Theileria in the blood of foxes in Russian 
Turkestan. 
CESTODA. 
Some thirty species of cestodes have been reported as occurring in foxes. 
When the synonomy is considered this list is reduced to less than half. In none 
of the cases, in so far as I have found, is there any reference to the effects upon 
the fox. The pathogenicity of some, the species which affect other hosts than 
the fox, is well known. 
The species reported for the fox are listed alphabetically below, together 
with notes on synonomy and on the host species where available. 
Bothriocephalus similis Krabbe, 1865. 
In Vulpes lagopus, Greenland. 
Cysticercus vulpis (Gmel. 1790) Zed. 1803. 
(Synonym: Taenia vulpis Gmel. 1790.) 
In Vulpes, Europe. 
Diphyllobothrium latum (Linn. 1758) Luehe, 1910. 
(Synonyms: Taenia lata Linn. 1758; Boihriocephalus latus Bremser, 1819; 
Dibothriocephalus latus Luehe, 1899.) 
Occurs rarely in the common fox of Europe (Braun; Railliet) 
Dithyridium elongatum (Blumberg, 1882) Raill. 1893. 
(Synonyms: Cysticercus elongatus Blumberg, 1882; Cysticercus bailleti 
Railliet, 1885.) 
This larval form, resembling a plerocercoid except that it possesses four 
suckers, occurs in the peritoneal or pleural cavity, free or encysted in dogs and 
cats. Neumann (1896) reports finding a great number in the peritoneal and 
pleural cavities, as well as beneath the serous membrane Gf the liver and lung 
of a fox. Allessandri (1907) also reports it for the fox. 
Neumann presents evidence indicating that these forms may be erratic 
larvae of Mesocestoides lineatus, which he commonly found in the intestines of 
the same animals. 
Mesocestoides canis-lagopodis (Rud. 1810) Luehe 1894. 
(Synonyms: Taenia canis-lagopodis Rud. 1810; Ptychophysa canis-lagopodis 
Loennb. 1896.) 
From Vulpes lagopus. 
Mesocestoides lineatus (Goeze, 1782) Braun, 1898. 
(Synonyms: Taenia lineata Goeze, 1782; Taenia pseudo-cucumerina 
Bailliet, 1863; Ptychophysa lineata Hamann, 1885.) 
