Monoplex pilearis, common name the hairy triton, is a species of medium-sized predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

[1] This species is widespread in the Atlantic, in the Red Sea and in the Indo-Western Pacific from East and South Africa, to eastern Polynesia, north to southern Japan and Hawaii and south to southern Queensland.

This tropical benthic sea snails can be found at a depth range of 0 – 50 m.[4] They mainly live on hard and coarse detritic bottoms, in coral reef areas.

[2] These large shells are elongate with a tall spire and a strongly inflated body whorl.

They show a yellowish-brown surface with chestnut- brown spiral ribs.