coralline sponge

Any of many sponges, of the class Sclerospongiae, that have a massive skeleton made of calcium carbonate

Japanese Meaning

Sclerospongiae（硬骨海綿類）に属し、骨格が主に炭酸カルシウムで構成され、巨大な骨格を持つ海綿の総称

During the dive, the biologist carefully collected a small coralline sponge from the overgrown reef to examine its structure.

潜水中、生物学者は研究のために、過密なサンゴ礁から石灰質の骨格を持つ小さな海綿を慎重に採取した。

Sense（1）

Any of many sponges, of the class Sclerospongiae, that have a massive skeleton made of calcium carbonate

coralline sponges

（ plural ）