Patch reef edge of limestone shelf, lagoon. Silty. 8-12m. 26 deg C.
Around 1.7-1.8cm wide
Similar shape to these shells: https://singapore.biodiversity.online/species/A-Moll-Bivalvia-000001
https://ranong.myspecies.info/category/clade/flora-and-fauna/mollusca/bivalvia/arcidae/anadara-gubernaculum
Update: The crab has since done a moult under my care, I have added some pictures of the moulted limbs that they have not decided to eat.
Occasionally, I head over to the beach and collect gastropod shells inside pools. (Un)fortunately, it seems I may have picked up a shell with someone inside.
This hermit crab looks very much like a Thinstripe, but from what I understand, they only live in the Americas.
There is an observation nearby that was stated as a Thinstripe, but isn't on closer inspection.
It's quite interesting as there is very little chance the shallow dwelling Thinstripe got through the entire Pacific to Malaysia, so should anyone have a better idea on the identity of this guy, that will be awesome.
For now, they have a nice little enclosure until I can bring them back.
Bycatch samples