Euryspongia semicanalis (Ridley, 1884)

Ridley, S. O. 1884a. Spongiida. Pp. 366-482, pls 39-43; 582-630, pls 53-54. In: Report on the Zoological Collections made in the Indo-Pacific Ocean during the Voyage of H. M. S. ‘Alert’, 1881-2. (British Museum (Natural History): London).