Sirmaid is a Water type Pokémon. It evolves into Merboy at Level 16 if male, and Mergirl at Level 16 if female. Its species name is the Baby Mermaid Pokémon.
Sirmaid looks different depending on the gender. Male Sirmaid is bald with yellowish skin on its head and a blue body, with yellowish tail fins. Female Sirmaid is the same, except with blue hair. Shiny Sirmaid has brown skin with a green body.