550 SUMMARY OF CURRENT RESEARCHES RELATING TO 



successful owing to the rapid development of bacteria in the medium. 

 It seems that Euglena does not live saprophytically on the amido-acid, 

 since it cannot be made to thrive in the absence of light. 



As to soil Protozoa, such as Prowazekia terricola, it was found that, 

 as compared with Euglena, they are able to live in cultures to which 

 organic compounds of very varying nature have been added. This 

 comparative impartiality is the result of the holozoic mode of nutrition, 

 the development of Flagellates being absolutely dependent on the bacterial 

 growth. The presence of Miquel salts in the solution is necessary for 

 the growth of the soil Flagellates and for the proper development of 

 the Bacteria on which they feed. The Flagellates can be fed on various 

 kinds of Bacteria. 



Japanese Fresh-water Protozoa.* — C. H. Edmondson and R. H. 

 Kingman report on a collection from lakes, streams, small pools, and 

 rice fields. The list includes species of Hyalodiseus, Gentropyxis, Lec- 

 quereusia, Nebela, Gampascus, Paulinella, etc. among Amcebidse ; Actino- 

 phrys sol among Heliozoa ; species of Notosolenus, Anthophysa, Euglena, 

 TracJielomonas, etc. among Flagellata ; species of Goleps, Ghilodon, 

 Stentor, Gyrocoris, Stylonichia, Aspidisca, Vorticella, etc. among Ciliata ; 

 and Sphserophrya magna Maupas among Suctoria. 



Four Species of Gregarine from one Species of Beetle. f — S. Ishii 

 found in the intestine of Trebollum ferrugineum four polycystic Gregarines 

 —Gregarina cuneata F. Stein, G. minuta sp. n. (with a small ovoid pro- 

 tomerite, which, in the satellite of two individuals in syzygy, is not 

 infrequently hidden from view, being entirely embedded in the deuto- 

 merite of the primite), G. crassa sp. n. (with a very small protomerite, 

 always broader than long, usually not visible in the satellite), and 

 Sieinina obconica sp. n., with a half-moon-shaped protomerite and an 

 obconical deutomerite. 



» Annot. Zool. Jaron. viii. (1914) pp. 531-42 (1 pi.). 

 t Annot. Zool. Japon. viii. (1914) pp. 435-41 (4 figs.). 



