[1] This species can be found in the western Pacific in parts of Central America (Baja California, from Mexico to Peru).

[2][3] These sea snails live along the tropical coasts in shallow waters among intertidal rocks.

Shells of Muricanthus radix can reach a size of 50–160 millimetres (2.0–6.3 in).

[2] These large, massive, heavy shells are globose or pear-shaped and very spiny, with a white surface and blackish-brown foliations and spiral elements.

The shells of these two species mainly differ in the length, width and in the proportion of blackish-brown versus white.