Photo I received from Boomer (from reefcentral.com), specimen from Nelson Bay Beach, New South Wales, Australia
This specimen from Australia with black-green tentacles bear some resemblance with colorfull species Edwardsianthus sapphirus or Edwardsianthus smaragdus but most probably is distinct. Rouwlett (2020) says that it is endemic to New South Wales, but since no works describing its morphology are published its taxonomic assignment remains unknown.
Taxonomy:
Phylum Cnidaria
Class Anthozoa
Order Actiniaria