Entoprocts are usually seen as tiny crowded stalked zooids on some sponges or tunicates.
Entoprocts are eaten by several species of Trapania nudibranchs. The first photo below by Marissa Brown shows Trapania tora in a field of flowery entoprocts.
Trapania euryeia mowing down even smaller Entoprocts.
Trapania miltabranchia red sponge bearing Entoprocts.
An unidentified Trapania grazing Entoprocts from red sponge.
Entoprocts are also often on tunicates. The four photos below were taken in the Philippines (first one) or Bali, Indonesia (next three).
Created 27 July 2020