The innkeeper worm (Urechis unicinctus), a species of spoon worm, is eaten as seafood in Korea.
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A technical zoology term. The character is rare outside marine biology. The most familiar species to Chinese speakers is 单环刺螠 (Urechis unicinctus), a phallus-shaped worm used in East Asian seafood cuisine.
Left insect-and-creature radical, originally a coiled snake. In classical Chinese 虫 indexed anything small or non-mammal - bugs, worms, lizards, shellfish. Here it places 螠 in the marine-worm family, signalling that the entry is a creature (the echiuran spoon worm) rather than an unrelated yì homophone.
Right 益 supplies the sound yì directly with no shift - water overflowing a dish, the older form of 溢 to spill. Pure phonetic role; no benefit-meaning enters 螠. The same phonetic appears in 谥 posthumous title and 缢 to hang oneself.
No stroke data for 螠; the glyph shown is your device font, so component strokes can't be highlighted.
