Oscarella lobularis
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
Collection locality: Finistere Department, France. Collected by Levi, C.. Porifera demo; IZ number 2108; lot count 1; Microslide 01, balsam, serial section; Microslide 02, balsam, serial section; Microslide 03, balsam, serial section; Microslide 04, balsam, serial section; Microslide 05, balsam, serial section; Microslide 06, balsam, serial section; Microslide 07, balsam, serial section; Microslide 09, balsam, serial section; Microslide 10, balsam, serial section; Microslide 11, balsam, serial section; Microslide 12, balsam, serial section; Microslide 13, balsam, serial section; Microslide 14, balsam, serial section; Microslide 15, balsam, serial section; Microslide 16, balsam, serial section; Microslide 17, balsam, serial section; Microslide 18, balsam, serial section; accn=IZA.07774.
Yale Peabody Museum’s own description