Caulophacus

Caulophacus is a genus of glass sponges belonging to the subfamily Lanuginellinae.
Species.
Subgenus "Caulophacus" ("Caulodiscus") 
Subgenus "Caulophacus" ("Caulophacella") 
Subgenus "Caulophacus" ("Caulophacus") 
Subgenus "Caulophacus" ("Oxydiscus") 