底栖有孔虫

dǐ qī yǒu kǒng chóng

benthic foraminifera

底

dǐ

bottom; base

栖

qī

to perch

有

yǒu

to have; there is

孔

kǒng

hole

虫

chóng

lower form of animal life, including insects, insect larvae, worms and similar creatures