ART. 1 INDO-CHINA PARASITIC NEMATODES SCHWAKTZ 7 



Family TRICHOSTRONGYLIDAE 

 Genus MECISTOCIRRUS Railliet and Henry, 1912 



MECISTOCIRRUS DIGITATUS (v. Linstow, 1906) 



Host. — Bos taurus. 



Location. — Stomach. 



The spicules are nearly 6 mm. long, this size being larger than has 

 heretofore been recorded for this species. According to Railliet and 

 Henry (1012) the spicules of this species are from 3.8 mm. to 4.5 

 mm. long. These writers disagree with Leiper as regards the iden- 

 tity of M. digitatus and M. fordi and differentiate the two species as 

 follows : 



M. fordi has longer spicules (6.2 mm. to 7.5 mm. long) ; its bursa is 

 almost as wide as long whereas the bursa of M. digitatus is almost 

 twice as long as it is wide. Railliet and Henry state moreover that 

 the projecting lobule that is present at the level of the external dor- 

 sal ray in M. fordi is absent in M. digitatus. 



Family METASTRONGYLIDAE 

 Genus DICTYOCAULUS Railliet and Henry, 1907 



mCTYOCAULUS VIVIPARUS (Bloch, 1782) 



Host. — Bos taur-us. 

 Location. — Bronchi. 



Superfamily SPIRUROIDEA 

 Family RICTULARHDAE 



Genus RICTULARIA Froelich, 1802 



Host.—'''R.aV' 

 Location. — Stomach. 



Family PHYSALOPTERIDAE 



Genus PHYSALOPTERA Rudolphi, 1819 



PHYSALOPTERA PRAEPUTIALIS v. Linstow, 1889 



Host. — Felis domestica. 

 Location. — Stomach. 



Superfamily FILARIOIDEA 

 Family FILARIIDAE 



Genus DIROFILARIA Railliet and Henry, 1911 



DIROFILARIA IMMITTS (Leidy. 1856) 



Host. — Felis tigris. 

 Location. — Right side of heart. 



This is a new host for this parasite, which has, however, on several 

 occasions, been reported from Felis domestica. 



