Without statocyst, with common gonopore;
pharynx long cylindrical, with reverse layers as in the Tricladida, horizontally positioned and directed posteriorly;
intestine split in area of pharynx and also in area of the one posterior-lying copulatory apparatus;
circular ("cyclocoela") with one pair germaria behind pharynx;
male copulatory organ rudimentary, with penis papilla and an inner seminal vesicle;
body and behavior similar to that of Tricladida;
hind end without adhesive cells;
Return to Bothrioplanida Bothrioplanidae