Arthuria Klautau, Azevedo, Cóndor-Luján, Rapp, Collins & Russo, 2013 Arturia is a genus of calcareous sponge in the family Clathrinidae which contains 14 species.

[2] Arturia canariensis, for example, is a filter feeder, sieving plankton and other organic material out of the current of water as it passes through the ostia.

[1] The skeleton is composed primarily of straight, conical and sharp spicule with two or three pointed arms but in rare instances may have four.

[12] It grows on shady rock substrates and in caves but its preferred location is the underside of ledges formed by horizontal, plate-like layers of coral.

[11] In a 2007 survey of sponges off the coast of Georgia, Arturia canariensis was discovered in cryptic locations under rocks, in crevices and overgrown by other organisms.

Diactines are abundant on the external tubes; they are curved or straight, vary in size and have sharp tips, one of which is club-shaped.

[21] The regular triradiates have rather stout, slightly fusiform rays, bluntly and rather abruptly pointed at the apex, which is often somewhat irregular.

This ray is somewhat variable in form and size; typically it is long and slender, gradually and sharply pointed, and slightly undulated towards the extremity; in the type specimen it attains a length of about 0.14 mm.

They taper very gradually from the proximal extremity, which is somewhat hastately sharp-pointed and may be as much as 0.004 mm thick, to the distal, which is hair-like and apparently nearly always broken off.