26 Trivia arctica COMPARE Marsenia perspicua

26 Trivia arctica COMPARE Marsenia perspicua

Compound ascidian, diameter c. 30mm, with nine egg-capsules of Lamellaria perspicua inserted. Image out of water.
1: transparent compound ascidian.
2: buff ova seen through transparent lid of recently deposited egg-capsule.
3: white ova seen through transparent lid of older expanded egg-capsule.
4: rim of capsule lid; diameter a little less than that of capsule which is visible through transparent ascidian.
5: ascidian raised around rim of lid.

April 2015. Cumbrae, Scotland. Leg. & © Paula Lightfoot.