Purpura clathrata Blainville, 1832 Purpura clathrata Kuster, 1859 Purpura ovalis Blainville, 1832 Purpura squamosa Lamarck, 1816 Purpura squamulosa Gray, 1839 Thais sculpturata Turton, 1932 Thais subglobosa Turton, 1932 Nucella squamosa, common name the scaly dogwhelk, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

[1] The scaly dogwhelk is a small brown whelk with many fine knobbly spiral ridges on its shell.

The ridges of the snail's shell are not often visible because the whelk is usually overgrown by the high-spined commensal hydroid, Hydtractinia altispina, which looks prickly and is orange.

[2] This marine snail is found off the southern African coast from central Namibia to Port St Johns, subtidally to 50m under water.

[2] The eggs are laid in small groups of capsules which resemble stalked clubs.