Patiria miniata Early Bipinnaria coelom detail

P. miniata 1 day post fertilization. Here the L and R hydrocoel are visible, along with the L somatocoelom.

P. miniata 7 days post fertilization. The gut is stained red from Rhodomonas. Both the Left and Right Hydrocoel are visible (center), as well as the posterior coelom (top right), situated over the gut.