Gastrotricha 177 



They survived and reproduced in small numbers, however. Small 

 amoebae, some Heliozoa, many tiny colorless and pale green flagellates, 

 Entosiphon, Halteria, and several types of rotifers thrived at certain 

 periods. Malted milk as a successful medium for the growth of Para- 

 mecium is mentioned by Pixell-Goodrich in Lee (1928). 



Bibliography 

 Lee, A. Bolles. 1928. The Microtomist's Vade-Mecum, 9th ed. p. 411. 



