702 



PROTOZOOLOGY 



rica; tentacles in 1-4 fascicles on anterior surface; stalk not rigid; 

 swarmers oval, with several ciliary bands and long cilia; fresh water. 

 Several species. 



Fig. 330. a, Acineta tuberosa, X670 (Calkins); b, A. cuspidata, X670 

 (Stokes); c-e, Tokophrya injusionum (c, X400; d, a free-swimming bud; 

 e, a young attached form, X800) (Collin); f, T. cydopum, a young 

 individual, X500 (ColHn). 



T. injusionum (Stein) (Fig. 330, c-e). Inverted pyramid; stalk with 

 or without attaching disk; macro nucleus oval; 2 contractile vacuoles; 

 about 60/1 long. 



T. cycloputn (Claparede and Lachmann) (Fig. 330, /). Oval or 



