8 PROCEEDINGS OF THE NATIONAL MUSEUM vou 68 



Genus OESOPHAGOSTOMUM Molin, 1861 



OESOPHAGOSTOMUM APIOSTOMUM (Willach, 1891) 



Several specimens from the intestine of a monkey ( Macacus tchelien- 

 sis) collected in Peking in 1922 (Cat. No. 26448, U.S.N.M.). 



OESOPHAGOSTOMUM DENTATUM (Rudolph! . 1803) 



Specimens of this species from the large intestine and rectum of 

 swine were collected in Changsha in 1921 in Wuchang in 1921, and 

 in Peking in 1920 (Cat. Nos. 26404, 26451, and 26454, U.S.N.M.). 

 Maxwell (1921) reports this parasite from the duodenum of swine 

 in south Fukion. Faust (1921) reports this parasite from pigs in 

 north China. 



OESOPHAGOSTOMUM LONGICAUDUM Goodey, 1925 



This species was described by Goodey from domestic swine in New 

 Guinea. It is present in the China specimens of Oesophagostomum 

 from swine forwarded by Doctor Faust. 0. dentatum and 0. longi- 

 caudum are present in the same bottles and presumably the two species 

 occur in the same host animal. Specimens of Oesophagostomum longi- 

 caudum were also found by the present writer in material collected 

 in Tonkin, Indo- China, in the Philippine Islands, in the Fiji Islands, 

 and in the United States. 0. longicaudum is probably of world-wide 

 distribution. 



OESOPHAGOSTOMUM COLUMBIANUM Cnrtlce, 1893 



This species is reported from the ileum of the goat in south Fukien 

 by Maxwell (1921). 



OESOPHAGOSTOMUM VENULOSUM (RudolpU, 1809) 



This species is reported from the jejunum, ileum, and large intes- 

 tine of the goat in south Fukien by Maxwell (1921). 



Family TRICHOSTRONGYLIDAE Leiper, 1912 



Genus TRICHOSTRONGYLUS Looss, 1905 



TRICHOSTRONGYLUS PROBOLURUS (Raillict, 1896) 



Numerous specimens were collected from the small intestine of 

 sheep (Ovis, species) in Peking in 1920 (Cat. Nos. 26418, 26419, and 

 26420, U.S.N.M.). 



Genus HAEMONCHUS Cobb, 1898 



HAEMONCHUS CONTORTUS (Rudolphi, 1803) 



Specimens of this species from sheep collected by Doctor Shields 

 in China are in the helminthological collections of the United States 

 National Museum (Cat. No. 18682). Maxwell (1921) reports this 

 species from the intestine of goats and from the stomach of a calf 

 (Bos, species) in south Fukien. 



