S. calcifer produces carcinoecium that forms a thin cover around the hermit crab species Pagurodofleinia doederleini.

S. calcifer inhabits the top of the hermit crab's shell attaching itself by the carcinoecium it produces.

The anemone feeds on the suspended particulates of organic matter from the water column or the food residuals.

[1] It lives at a depth of 100 to 400 meters (330 to 1,310 ft) around the Pacific side of Kyushu, Japan.

The Stylobates Calcifer is distinct from the other organisms in its species due to the shape of the marginal sphincter muscle, the distribution of cnidae, the direction of the oral disk, and host association.