Haliotis rufescens Swainson, 1822
Distribution: Oregon to W. Baja California.
Size up to 313mm. Lowest intertidal to 30m deep, on rocks in Kelp areas.
Lives deeper in the southern part of the range. Farmed in Chile. Click here to see a monster size.

The largest of all Abalones is also the easiest to recognize.
It is brick-red, large, heavy, thick, with spiral threads crossed by radial growth lines that give the dorsum
a reticulate appearance. Folds, bumps, waves can be noticed on many specimens. Muscle scar truncated.
California, 195mm. From Coll. Ernest Zurrer (NZ).
California, 194mm. This large species is often encrusted, and hosts many crustaceans, worms and bivalves.
Notice the red lip along the anterior margin.
California, 197mm. A feature that often appears: the margin climbs along the columella.
For old timers, life becomes a burden: they are dug, bored and gnawn in any way;
a destiny that the Red Abalone shares with H. fulgens.
A 85mm specimen from Caldera, Copiapó, in III Region, Chile.
Farmed shells never grow too long.
8m deep, around boulders, Fort-Bragg, Mendocino County, N. California.
237mm. Original picture © R. Kershaw.

All pics © Olivier Caro