Appearance
Anemone living inside parchment-like tubes. Oral disc with a ring of long, pointed outer tentacles on the edge of the disc, and a tuft of shorter tentacles around the mouth. Disc up to 3 cm in diameter, tentacles 5 cm long. Outer tentacles translucent brown and white banded; oral disc and inner tentacles whitish.Naming
Arachnanthus nocturnus den Hartog, 1977 is now accepted as Isarachnanthus nocturnus (Hartog, 1977)Distribution
In both Caribbean and East Atlantic subtropical areas.Habitat
Anemone living inside tubes buried in mud, sand or fine gravel in areas of sand and coral rubble, down to 25 m. Retracts immediately by disturbance. Inhabits sandy, muddy and fine gravel/coral rubble bottom areas from depths of 15 to 65 feet (5 - 20 m).References:
Some text fragments are auto parsed from Wikipedia.
http://www.marinespecies.org/aphia.php?p=taxdetails&id=101006https://en.wikipedia.org/wiki/Arachnanthus
https://reefguide.org/tubeanemone.html
http://www.saltcorner.com/AquariumLibrary/browsespecies.php?CritterID=2308
http://species-identification.org/species.php?species_group=caribbean_diving_guide&id=289