Haliotis (Padollus) dalli Henderson J.B., 1915 Haliotis dalli, common name the Galápagos abalone, is a species of sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.

This was due to the destruction of the holotype of Haliotis pourtalesii in the Great Chicago Fire of 1871.

[3] "The small shell has a pale brick-red color, with white dots on some of the spirals.

The sculpture consists of well marked, rather flattish, spiral, close-set threads, sometimes with a single finer intercalary thread, overlaid by smaller rather compressed transverse ridges, in harmony with the incremental lines.

On top of the spirals the ridges bulge like the threads of worsted on canvas embroidery.