RHODO-THIOBACTERIA 175 



peach-flower red, detachable, sHmy membrane. Cocci are 

 motile. 



Habitat. — Sulphur springs of Japan. 



Lamprocystis rosea (Miyoshi), Migula. 



Literature. — As for L. violacea. 



Named Thioderma roseum by Miyoshi. Ellipsoidal cells, 

 2-5 X l'5/A. Light red in colour and covered by a thin 

 detachable membrane of a dull purple red colour. Angular 

 sulphur granules. 



Habitat. — Sulphur springs of Japan. 



The reasons for discarding this genus are given on page 89. 



