Seashell is a lavender pony who is Ariel's pet. She has aqua blue eyes, a reddish-pink mane and tail styled like Ariel's hair, and wears green and purple jewelry.
Her personality is sweet, funny and a bit clumsy. Seashell used to be a seahorse who, like her owner, dreamed of life on land. Like Ariel, she used to belong to the sea and, despite being a horse, she can still swim very well. She also loves seashell tiaras!
Seashell is voiced by Jessica Straus.