This seems to match Phanerophthalmus cylindricus but we have done no anatomical work to try to confirm this. The specimen below was in a lagoon slope Halimeda patch. What may have been this species was first reported from Enewetak Atoll as Lathophthalmus smaragdinus by Marcus & Burch (1965).
Created 27 January 2007
Updated 13 December 2021