Orange Auger

Oxymeris dimidiata

Oxymeris dimidiata is a species of sea snail characterized by its distinctive orange to red shell, which can range in size from 55 mm to 165 mm. The shell features thin, wavy, pale lines that help differentiate it from similar species. This species inhabits various regions, including the Red Sea and the Indian Ocean, with recorded occurrences off Aldabra, Chagos, Madagascar, Mauritius, Mozambique, and South Africa. It can also be found in the Pacific Ocean, from Papua New Guinea to Hawaii. Typically, Oxymeris dimidiata is found in shallow waters, with most recorded depths being less than 40 meters. It prefers benthic environments, often residing on sandy bottoms or among rocky substrates. As a non-broadcast spawner, this species does not go through a trocophore stage in its life cycle, indicating a unique reproductive strategy among gastropods. Divers may encounter orange augers while exploring their habitats, often observing them resting on the substrate. Their coloration and distinctive shell patterns make them relatively easy to spot. However, care should be taken not to disturb them, as they are part of the delicate marine ecosystem. The conservation status of this species has not been evaluated, but it is recorded at numerous dive sites, suggesting a relatively stable presence in its habitat.