Ciliophora 405 



Fig. 7. 44. A. Glossatella fnUhmabuhun (Kent) Kahl, 30-43^: large adoral 

 membrane (after K.). B. ParavorticeUa clyrnencUae (Shumway) Kahl, about 

 100^ long (after S.). C. Ophrydium lemnae Kahl, specimen 70^ long (after 

 K.). D, E. Lagenophrys labiata Wallengren, ventro-lateral and lateral views; 

 x360 (after Wang and Nie). F. Sryphidia physarum Lachmann, about QOyn 

 long (after Kahl). G, H. Scyphidia ameirui Thompson, Kirkegaard and 

 Jahn, 34-45/i; telotroch and sessile stages (after T., K. & J.). I. Ophrydium 

 (Gerda) glaus (Clapar^de and Lachmann) Kahl, specimen 200;^ long; long 

 canal extends from reservoir of contractile vacuole to the vestibule (after 

 K.). J. Opercularia ramosa Stokes, x210 approx. (after Bishop and Jahn). 



whole may be retracted toward the point of attachment; in Carchesium, 

 contractions of the stalks affect individual zooids separately. 



The life-cycles of Peritrichida are commonly dimorphic and sometimes 

 polymorphic. Reproduction apparently should be considered fission 

 rather than budding, although one daughter organism is often smaller 



