Robuta

https://marinespecies.org/porifera/porifera.php/www.aqua-aquapress.com/porifera.php?p=taxdetails&id=169771

World Porifera Database - Species - Plakortis zyggompha (de Laubenfels, 1934)

world porifera database species plakortis

https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=133938

World Register of Deep-Sea species - Plakortis simplex Schulze, 1880

deep sea world register species plakortis

https://www.marinespecies.org/aphia.php?p=taxdetails&id=742476

WoRMS - World Register of Marine Species - Plakortis potiguarensis Domingos, Moraes & Muricy, 2013

marine species worms world register plakortis