Seashells are decorative items found naturally in the Ocean biome. When placed, they can appear as one of three varieties.
- The Seashell is the only one out of the three decorative background objects found in the Ocean (the others being 珊瑚 and 海星) whose inventory sprite does not exactly match at least one of the variants when placed. The sprite does somewhat resemble the first variant, as if it would be stuck in the sand tilted to the right.
- Prior to 1.3.5, Terraria item names used to be stored in separate language files, and the "name" statistic for items were merely internal placeholders. The internal name for Seashells and Starfish was "Beach Stuff."