PenaresPenares is a widely distributed genus of demosponges, and was first described in 1867 by John Edward Gray.DescriptionThese sponges are irregularly massive and have a thin cortex. Species belonging to this genus have dichotriaenes and oxeas. Smooth microrhabds or microstrongyles ) form a crust in the ectosome. Euasters may also be present.SpeciesThe following species are recognised: