There is some controversy over whether Sebastian from The Little Mermaid is a lobster or a crab. According to the Disney website, official novelization, and Disney-sanctioned reference material, Sebastian is a lobster. However, in The Little Mermaid itself, Sebastian is referred to as a crab by Chef Louis. In The Little Mermaid TV series, he is also referred to as a crab. Despite this, some Disney merchandise has referred to Sebastian as a lobster.
Sebastian is a hermit crab according to The Little Mermaid Wiki, and a crab according to D23 and Disney Wiki. However, according to an article on We Got This Covered, Sebastian is actually a tropical ghost crab.
