Turbellarian taxonomic database

Macrostomorpha Myozona


mouth ventral, post-cerebral;
male gonopore caudal to female gonopore;
gonads unpaired;
testis left, ovary right;
oviduct opens in a bursal seminalis connected caudally to the intestine by ductus genito-intestinalis;
male copulatory organ with unarmed penis or with sclerotized differentiations;
with muscle-ring on gut;