Esmerelda is a sea snail who appears in the episode "Sanctuary!" She is mistaken for a male by SpongeBob and nicknamed "Señor Poopus."
She is similar in appearance to Gary. However, she has a light olive green body with a mustard yellow underside, a light purple shell with ten blue spots, a red-orange spiral, and thick light brown eyebrows. She appears to be a stray snail in bad shape, as indicated by her withered eyestalks, visible ribs, and a dent in her shell.
In "Sanctuary!" SpongeBob and Gary come across Esmerelda hiding behind a rock. Shy at first, she is quickly adopted by SpongeBob, who takes her home, names and feeds her.
I can turn into a skyscraper!
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