Did you mean: Acantho Polymastia bathamae
Acanthopolymastia bathamae
Animal
Acanthopolymastia bathamae is a species of sea sponge belonging to the family Polymastiidae. It is only known from the Papanui Submarine Canyon off Dunedin, South Island, New Zealand.
This is a small, cream-coloured hemispherical sponge up to 8 mm... Wikipedia
Scientific name: Acanthopolymastia bathamae