Pearl Bubble Coral

Physogyra lichtensteini

It is a grape-like coral of the family Caryophylliidae.
Pearl Bubble Coral - Physogyra lichtensteini (baby) - Tentative ID Tentative based on ressemblance to one of the pictures here:
http://www.coralsoftheworld.org/species_factsheets/species_factsheet_images/physogyra-lichtensteini/
Alternatively it also holds ressemblnace to Balanophyllia species. Fall,Geotagged,Indonesia,Pearl Bubble Coral,Physogyra lichtensteini

Appearance

Colonies are massive or form thick plates and meandroid in form with short, widely separated valleys. Tentacles are extended only at night and during the day the whole colony surface is covered with a mass of vesicles. Pale gray sometimes dull green in color.
Pearl Bubble Coral - Physogyra lichtensteini This is a more grown colony of Physogyra lichtensteini with its tentacles out (night dive picture). Fall,Geotagged,Indonesia,Pearl Bubble Coral,Physogyra lichtensteini

Distribution

Indo-West Pacific: Japan to Australia and Red Sea to Fiji.
Pearl Bubble Coral - Physogyra lichtensteini  Fall,Geotagged,Indonesia,Pearl Bubble Coral,Physogyra lichtensteini

Status

Vulnerable.

Habitat

P. lichtensteini colonies are most common in shallow and turbid reef environments.

Reproduction

Mature gametes are shed into the coelenteron and spawned through the mouth. Life cycle: The zygote develops into a planktonic planula larva. Metamorphosis begins with early morphogenesis of tentacles, septa and pharynx before larval settlement on the aboral end.

References:

Some text fragments are auto parsed from Wikipedia.

http://www.coralsoftheworld.org/species_factsheets/species_factsheet_images/physogyra-lichtensteini/
http://www.edgeofexistence.org/species/pearl-bubble-coral/#overview
https://nl.wikipedia.org/wiki/Physogyra_lichtensteini
http://www.marinespecies.org/aphia.php?p=taxdetails&id=207497
https://www.sealifebase.ca/summary/Physogyra-lichtensteini.html
Taxonomy
KingdomAnimalia
DivisionCnidaria
ClassAnthozoa
OrderScleractinia
FamilyCaryophylliidae
GenusPhysogyra
SpeciesPhysogyra lichtensteini
Photographed in
Indonesia