Turbellarian taxonomic database

Dolichomacrostominae Megamorion Diagnosis


long-bodied;
with ventral post-cerebral mouth opening;
common ventromedial gonopore, which leads into a common atrium;
bursal organ with cuticular part inside;
stylet lying in main and near-tube, which do not appear to communicate with one another;
main tube serves for expulsion of sperm and prostatic secretions;
    (function of the near-tube is unknown);
atrium connected with the bursal organ, which lies above it, by way of a long slit on the right side;
ovary paired, testis unpaired, lying dorsal and lateral to pharynx;
oviduct and female genital canal present;
muscle sheaths of male copulatory organ provided with an involuted choroid shell in the atrium;;
approximately 32 lateral longitudinal nerve trunks lie outside the body wall musculature caudally;

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