A new species of the genus Flabellina Voigt 1834 (Mollusca: Nudibranchia) from the Cape Verde Islands

A new species of the genus Flabellina Voigt, 1834 with perfoliated rhinophores is described from Cape Verde Islands. Its main external characteristic is the colour pattern of the rhinophores and oral tentacles. These exhibit a broad central purple ring, an opaque upper white region and a translucent pink basal region. This species is compared with the other three Atlantic species of the genus with perfoliated rhinophores: Flabellina engeli Marcus, 1968, from the Caribbean Sea, Flabellina babai Schmekel, 1972 from the Mediterranean Sea and Northeast Atlantic and Flabellina llerae Ortea, 1989 also described from Cape Verde.