Astele subcarinata, common name the subcarinate top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.

[1] This species was the first marine mollusc to be described in an Australian scientific journal, by William Swainson in the Papers and proceedings of the Royal Society of Van Diemen’s Land[2] (read before the Society March 1854,[3] published 1855).

The rather thin shell has a depressed-conical shape and is broader than high.

It has a pale, yellowish flesh-color, painted with tawny flammules and sparsely spotted.

[4] This marine species occurs off Southern Australia and Tasmania.