Terpios hoshinota is a species of sea sponge belonging to the family Suberitidae. It is found on rocky shores in the Indo-Pacific region. This sponge forms blackish sheets which overgrow and kill corals, and is the causal agent for the so-called "black disease" of corals. Since being discovered in Guam in 1973, this sponge has been spreading to other areas of the Indo-Pacific region and threatening coral reefs from the Maldives to the South China Sea and eastern Australia.