Gelastocaris paronai usually blend in very well against the sponges they live on, making them hard to see. Colors can vary depending on the color of the sponge. We have seen these on southern Kwajalein Atoll pinnacles and on the seaward reef.
The one below was photographed at Kwajalein by Jay Lord.
Created 3 July 2018
Updated 2 September 2021