About Janthina exigua Lamarck, 1816
Janthina exigua Lamarck, 1816 has a maximum recorded shell length of 15.3 mm. This pelagic species is found globally in tropical, circumequatorial waters. Confirmed recorded locations include the Atlantic Ocean, British Isles, European waters, Madagascar, Mascarene Plateau, Mediterranean Sea, Mozambique, the Pacific Ocean, South Africa, and the West Coast of Ireland. Its habitat ranges from a minimum recorded depth of 0 m to a maximum recorded depth of 0 m.