NO. 5 INTERMEDIATE HOSTS OF ASIATIC BLOOD FLUKE BARTSCH I7 



In 1921 Cort (28) published a splendid paper on " The Develop- 

 ment of the Japanese Blood Fluke, Schistosoma japonicum Katsurada, 

 in Its Final Host " and names as such Blanfordia nosophora. The 

 mollusks he says were received from Sado Yoshida of the Osaka 

 Medical College and were most likely my subspecies Katayama 

 nosophora yoshidai received from the same source. 



The same year Robson (27) published his exhaustive and splendid 

 study " On the Anatomy and Affinities of Hypsobia nosophora ", 

 ;. e., the mollusks he had in 191 5 named Katayama nosophora. 



In 1923 Meleney and Faust (29) published a paper on " The 

 Intermediate Host of Schistosoma japonicum in China " and here 

 cite Blanfordia nosophora and also an Oncomelanian. 



The next year, 1924, Faust (33) again discusses the problem in 

 his paper entitled " Notes on Larval Flukes from China. II. Studies 

 on Some Larval Flukes from the Central and South Coast Provinces 

 of China." He states here (p. 243) that the cercaria of Schistosoma 

 japonicum were found at Shaohsing in Katayama nosophora; this is 

 the mollusk I named Katayama fausti the following year. He prop- 

 erly places Katayama nosophora and Katayama, formosana in their 

 correct genus and exonerates the Blanfordias from being schistoso- 

 mophorous. He proclaims the Katayamas as mountain dwellers and 

 the Oncomelanias as occupying the Yangtze delta and Grand Canal 

 and Great Lake. These he also proclaims schistosomophorous. 



The same year Annandale's (31) paper on " The MoUuscan Hosts 

 of the Human Blood Fluke in China and Japan, and Species Liable to 

 be Confused with Them " appeared. This was an extensive study, 

 in which he definitely eliminated Blanfordia as a carrier, but, reduced 

 Katayama to a section of Oncomclania, which he called Katayamae. 

 In this he placed Oncomclania formosana and Oncomclania nosophora. 

 His treatment of Oncomclania I shall discuss under that genus. He 

 discussed classification at considerable length. 



In 1925 Bartsch (35) bestowed names upon three Katayamas: 

 Katayama nosophora yoshidae from Kurume, Kyushu Island, Japan ; 

 Katayama fausti from Shaohsing, Chekiang Province, China; and 

 Katayama fausti cantoni from Fatshan near Canton, China. He also 

 discussed Katayama nosophora and Oncomclania. 



In 1926 Germain and Neveu-Lemaire (36), in their " Essai de 

 Malacologie Medicale ", discuss the mollusks playing a part as inter- 

 mediate hosts. They recognize Oncomclania as a genus and Hypsobia 

 and Hemihia as sections thereof. The latter we have pointed out 

 previously is a pure and simple synonym of Oncomclania with the 

 same type, while the former is completely excluded from Oncomclania 



