Blue Ascidian / Blaue Keulenseescheiden

(Rhopalaea crassa)

blue sea squirt - blaue Seescheide

This beautiful sea squirt is about 4 cm large and lives solitary. Most squirts form colonies and sometimes completely cover large patches of the reef. On this photo you can see the mouth (top) where water enters and a second, smaller one on the right, where water expelled. At the slightest disturbance, they jet off all the water and shrink. Food particles are filtered from the water.

Lembeh, Indonesia 2006

Nikon Coolpix 5000 in sealux housing and subtronic flash

. Copyright Teresa Zubi