Family: Frontoventral cirri scattered on forward, mid- and rear areas of ventrum.
Genus: Oral cavity not wide; 2 oval macronuclei; marginal cirri confluent at rear;
frontventral cirri not linear; body firm, not laterally flexible (Illustrated Guide, 1985).
a large AZM at least 1/2 body length; caudal & transverse cirri present;
two ovoid macronuclei (Carey, 1992).
Species:
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