Turbellarian taxonomic database

Graffillidae Graffillinae Diagnosis

genital opening slightly in front of mid body;
with one pair germovitellaria, sometimes with a beginning of a separation;
seldom a bursa;
section of female canal often serves as receptaculum;
male copulatory organ with rudimentary penis papilla;
pharynx small and spherical;
sometimes with sparse dermal rhabdites;
egg capsule develops in parenchyma (viviparous);
endoparisite of marine mussels and snails;

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