ʻO nā momi millet nā momi maoli maoli. He pōhaku makamae kahiko ka momi, i loaʻa mua i loko o nā ʻoʻo momi a me ka makuahine -o-molluscs momi. ʻO nā momi he mau peʻa mineral calcium carbonate i hana ʻia e ka ʻōnaehana endocrine o ka iʻa, i haku ʻia me nā kristal aragonite liʻiliʻi. Hele mai lākou i nā ʻano like ʻole a me nā kala.
