Tidepool - algal interstitial
two spicemen A and B (smaller)
maybe a juvenile: https://www.inaturalist.org/observations/167340679
tidepool - algal interstitial
Youtube video: https://youtu.be/Q1sqXXy-hUU
tidepool - algal interstitial
in the same slide several similar specimen
Organism was captured at location and put into an aquarium to take photos.