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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 50. 



terminal edge and five or six on the upper surface of the knob. The 

 posterior portion of the intestine is slightly bent in an S shape. 

 Host. — Epimys species, " rat." 



Location. — Encysted in walls of the digestive tract. 

 Locality. — Hungary (Budapest ) . 



Gerstaecker notes that these worms, which 

 ^ were collected by Bakody, differ in size and 

 in other respects from Trichinella spiralis. 



288. 



289. 



290. 



Figs. 288-290.— Spiropteea srEciEs. 2S8, a, Worm in cyst; 6, removed from cyst. After Gers- 

 taecker, 1866. 289, Anterior EXTREMITY. Enlarged. After Gerstaecker, 1866. 290, Posterior 

 extremity. Enlarged. After Gerstaecker, 1866. 



It might also be noted that they do not agree with the larval Ollu- 

 lanus, which might also be considered as a possibility in this case. 

 The posterior extremity does agree with that of larval members of 

 the Filarioidea, such as the larval Ilahronema muscae described by 

 Eansom (1913). 



There are some minor discrepancies in the measurements given for 

 the cysts in the above description. 



