[3][4] The specific epithet babai honors the Japanese malacologist Kikutaro Baba.

It is also present in the Adriatic Sea and it has also been reported from the Atlantic coasts of Spain, Portugal and Senegal.

[6] It inhabits rocky bottoms at depths of 5 to 50 m.[5] Luisella babai can reach a length of about 30–53 millimetres (1.2–2.1 in).

[5] Hermaphrodite, like all nudibranchs, it deposits on the branches of the hydrozoans a white gelatinous spiral cord composed of thousands of eggs from which five to eight days later veliger larvae hatch.

These nudibranchs feed on hydroids, manly Campanularia, Bougainvillia and Eudendrium species.