sea slug, nudibranch
['seashore, coast, seacoast, sea-coast', 'American lobster, Northern lobster, Maine lobster, Homarus americanus', 'acorn', 'thunder snake, worm snake, Carphophis amoenus', 'quill, quill pen', 'pencil sharpener', 'ringneck snake, ring-necked snake, ring snake']