When I visited, the species list was the following:
- Periwinkle
- Hermit crab
- Common whelk
- Spider crab
- Glass prawn
- Shore crab
- Spiny starfish
- Common starfish
- Common sunstar
- Green sea urchin
- Viviparous blenny
- Rock gunnel
- Three-spined stickleback
- Small-spotted catshark
- Plaice
- Beadlet anemone
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Husum Nationalpark-Haus is one of several North German exhibition centres for the Wadden Sea and its fauna. This one is located by the harbor in the town of Husum and consists of two part - an exhibition room with text signs and photos, and a tank for fish and invertebrates caught in the nearby Wadden Sea.