Tritonoharpa antiquata is moderately rare in the Marshall Islands, but a fair bit more common than Plesiotriton mirabilis. We have records from lagoon reefs and pinnacles, as well as the seaward reef. Most specimens are found at night, and even most of those are shells inhabited by fast-moving hermit crabs. Several living specimens have been under rocks that were partly buried in sand, and the shells were in crevices in the part of the rock that was buried. We have also seen this species placed in the genus Colubraria.
Created 5 October 2010
Updated 26 March 2017