Clathria lissoclada, the triangular blade sponge, is a species of demosponge from the southern hemisphere.
This stalked pink to orange sponge grows up to a length of 180mmand a width of 80mm. The somewhat flat branches arise from semi-triangular blades. The surface is smooth with many randomly distributed oscules. This sponge is semi-compressible and tough.
This species is found off the coast of South Africa and off the Falklands. It is found at depths of NaNm (-2,147,483,648feet).[1]
This species often has polyp-like invertebrates living on its surface.