Turbellarian taxonomic database

Eulecithophora Rhabdocoela

Mostly small turbellarians with pharynx bulbosus and simple saccate gut (occasionally absent), parenchyma fairly open;
Protonephridia paired when present;
With anterior brain and ventral nerve trunks (usually one main pair) with cross connections, without statocyst;
Gonads with a tunica and mostly with ducts;
testes usually compact, eggs ectolecithal, ovaries separate or sometimes joined to vitellaria (ovo-vitellaria):
sexually reproducing, often with a uterus;
Mainly aquatic, some terrestrial, many symbiotic;