Sister's Island Creatures ID Part 1

All photos in this sections are taken by Siyang (thanks SY!). Had a HARD time trying to do identifications for first time. Those with "?" mark are just guesses. All the bracketed species names are supposed to be in italics but I'm too tired to so that already). Please kindly correct me if I'm wrong in any of them. Can learn from my mistakes :)


Spider conch (Lambis lambis). The cutie inside the shell is really interesting. When toppled, the guy inside will come out and flip the conch back to position.

Cone Shell (Thks SY for correcting)

Flower crab (Portunus pelagicus)

Common moon snail (Polinices sp.)

Diadema sea urchin (Diadema setosum)

Flatworm (Pseudobiceros sp.)

Giant Top Shell (Trochus niloticus)

Giant reef worm (Eunice sp.) Nice genus name for an ugly worm :P

Flatworm (Phylum Platyhelminthes)

Soft coral (Order Alcyonacea)

Small octopus (Class Cephalopoda)

Blue-spotted fantail ray (Taeniura lymma) trapped in a pool

Sea grapes (Caulerpa lentillifera)

Updated: Caulerpa lentillefera is probably racemosa. Lentillifera has perfectly round 'grapes' usually packed closely into sausage-like shapes. - Thanks Ria for the id!


Mushroom coral (Fungia sp.)

Sea anemone (Class Actiniaria)

Updated: The green branched tentacle sea anemone is a Phymanthus sp. Thanks Ria.


Octopus (Class Cephalopoda)

Mosaic crab (Lophozozymus pictor)

Flatworm (Pseuduceros sp.)

Unknown fish that pretends to be died!

Brittlestar (Class Ophiuroidea)

Swimming crab (Family Portunidae)?

Unknown long eel feasting on a small octopus! This is the climax of the day.

Unknown butterfly fish

Halfbeak (Zenorchopterus sp.)

A nice sponge (Porifera sp.) with osculum in the centre.

Two swimming crabs (Family Portunidae) and a Red egg crab (Atergatis integerrimus) having a crabby meeting

Sea cucumber (unknown ID)

Fringe-eyed flathead (Cymbacephalus nematophthalmus) (thks SY for correcting)

Yelloweye puffer (Arothron immaculatus)

Flatworm (Acanthozoon sp.)