|  Genus: Cytostome at or ahead of equator (Illustrated Guide, 1985; cytostome behind equator 
-->> Uropedalium, Urocyclon, Homalogastra).  Anterior region not ciliated; 
cytostome on the ventral side close to left border in the anterior half; contractile vacuole terminal 
(Kudo, 1966).  Ovoid, pyriform or elongate; cytostome small just above the equator; caudal cilium; 
somatic ciliation bipolar; a macronucleus anterior; a contractile vacuole posterior (Carey, 1992). Species:
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