Family: With two flagella; one directed anteriorly and the other posteriorly and trailing
(recurrent flagellum); flagella orininate in anterior end; one to several contractile vacuoles (Kudo, 1966).
Genus: Small, ovoid, but plastic; cytostome anterior; encystment common (Kudo, 1966).
Cytostome at the tip of a short rostrum which is ventral or tateral to the flagellar pocket
(Illustrated Guide, 1985).
Bodo, x 400, x 640, Uruguay Nov. 1999, photo by Yuuji Tsukii