JOÜKNAL OF THE COLLEGE OF SCIENCE, TOKYO IMFEEIAL ÜNIVIKSITY. 

 VOL. XL., ARTICLE 6. 



Notes on a New Boveria Species, Bor er hi 

 lab Ullis n. sp. 



By 



Iwaji IKEDA, 



Professor of Zoology, Higher Xormal School, Hiroshima, 



and 



Yoshimasa OZAKI, 



Assistant in Zoology, Higher Xormal School, HirosJtimn. 



With 21 te.vtßgures. 



In the summer of 1914, one of the authors discovered two 

 different parasitic ciliates, belonging to the genera Boveria and 

 Licnopliora and co-inhabiting the respiratory trees of a Cucumaria 

 species and also of Stichopus japonlcus. The genus Boveria was 

 erected recently by Stevens (1901) for a parasitic ciliate {Boveria 

 subcylindrica) found in the respiratory trees of Holothuria calif or nica, 

 in Monterey Bay, California. Later (1904) the same authoress^^ 

 described from two species of Neapolitan bivalves, Tellina exigua 

 and Capsa fragilis, another form of Boveria, which she regarded 

 as a variety of Boveria suboglindrica, calling it B. subcylindrica 

 var. neapolitana. She gave a detailed description of the external 

 characters, the binary fission, and the nuclear division of the 

 two forms, yet loft such important matters as the conjugation and 



]) Stevens, X. M. Further shidies on the ciHate Infusoria Licnophora and Boveria. Arch, 

 f. Prot. K., Bd. m, 19C4. 



