Thuridilla livida has mostly been rare in the Marshalls. Between July of 1981 and May of 1983, only three specimens were found at Enewetak Atoll. Between 16 and 27 May 1983, eleven more were found scattered among four separate sampling excursions. After that, they vanished again. A few more more have been observed during the past 28 years at Kwajalein. Most specimens have been found crawling exposed on sandy dead coral at depths of 1 to 5 meters, and nine measured specimens ranged from 10 to 15mm in length. Thuridilla livida was first reported in the Marshalls from Enewetak Atoll as Elysia livida by Johnson & Boucher (1984).
The specimen below was found by Christina Sylvester in the Kwajalein reef quarry.
Created 5 February 2007
Updated 1 February 2016