free-living; with pharynx at front end of unbranched intestine; mouth in first third of body; genital opening in hind body half; paired testes compact; male copulatory organ as a rule with complicated cuticular apparatus; germarium unlobed; paired, unbranched, smooth or papilla-less vitellaria; most with bursa copulatrix; without vagina; without sperm duct; with or without separate seminal receptacle; uterus mostly a part of female canal;
Return to Limnotyphloplanida Dalyelliidae