D. L. Mackinnon 
185 
5. Eriibadomonas. This genus, formed by me for a monoflagellate 
slipper-shaped oi’ganism in the larvae of Trichoptera, finds two repre¬ 
sentatives in Tipula. 
Fig. 19 a. 
Fig. 19 t. 
Fig. 18. Embadomonas agilis. 
Fig. 19 a. E. agilis. Small individual. 
Fig. 19 6. E. agilis. Individual with vesicular nucleus. 
(a) The first of these is a small flagellate (4 /a x 1‘5 yu. to 11 fi x S fi) 
indistinguishable from E. agilis Mackinnon from Trichoptera except 
by its rather smaller size. It has the characteristic slender slipper 
form, large cytostome, and anteriorly placed nucleus composed of a 
