aigialo-, aigial-, aigi- +

(Greek: beach, seashore; and also a cliff)

agialosaur
Beach lizard.
aigialium
A community of beach-dwelling organisms.
aigialophilous (adjective), more aigialophilous, most aigialophilous
Pertaining to the life in beach environments: There are many aigialophilous creatures found in beach habitats, including mussels, shore crabs, shrimps, and starfish.
aigialophyte (s) (noun), aigialophytes (pl)
Plants that exist and thrive on beaches.
aigicole (verb), aigicoles; aigicoled; aigicoling: beach
To inhabit beach areas or living among pebbles.