Award-Winning Picture of a Phidiana militaris nudibranch
Phidiana militaris is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Aeolidiidae.
Approximately 2cm in length.
Phidiana militaris nudibranch is characterised by the bright orange median line on the head which forks anteriorly, with a branch running up the anterior edge of each oral tentacle. Another orange line runs along the posterior edge of each oral tentacle and then runs along each side of the body below the cerata.
The oral tentacles, rhinophores, tentacular foot corners and cerata are all tipped with yellow and there is a broad orange band on the rhinophores.