Tellina nitida

They are surficial modifiers. They are facultatively mobile organisms.

URI: https://eol.org/schema/terms/surficialModifier
Definition: bioturbating fauna with activities restricted to the sediment layer immediately below the sediment surface
Attribution: S. Lindqvist, Engelbrektsson, Eriksson, Hulth. 2016. Functional classification of bioturbating macrofauna in marine sediments using time-resolved imaging of particle displacement and multivariate analysis. Biogeosciences Discuss, 13 Oct. 2016. doi:10.5194/bg-2016-411.

URI: http://eol.org/schema/terms/facultativelyMobile
Definition: Organisms that can change location but do so infrequently, e.g., crinoids, some infaunal bivalves.
Attribution: http://paleodb.org/public/tips/ecology_tips.html

EOL has data for 2 attributes, including: