Occurred on February 1, 2021 Hurghada, Egyptbr br Info from Licensor: Chromodoris quadricolor is a species of very colourful sea slug, a dorid nudibranch, a marine opisthobranch gastropod mollusc.[2] The specific epithet quadricolor means four-coloured, so-named because this nudibranch is yellow, white, blue, and black in colour.