Robuta

https://marinespecies.org/turbellarians/aphia.php?p=taxdetails&id=142239

Turbellarians - Prosthiostomum Quatrefages, 1845

turbellarians prosthiostomum

https://www.marinespecies.org/aphia.php?p=taxdetails&id=483891

WoRMS - World Register of Marine Species - Prosthiostomum trilineatum Yeri & Kaburaki, 1920

marine species worms world register prosthiostomum