About Cellana radians (Gmelin, 1791)
The soft body tissues of Cellana radians have a lightly colored foot and head, which distinguishes them from the darker soft tissues of Cellana flava. The shell of this species occurs in a range of different morphological forms, even among individuals found at the same location. The outer surface of the shell is typically grayish white, marked by rather flat, slightly darker ribs. The shell's interior is iridescent, white, and has gray impressions from the animal's muscle. The shell's apex sits off-center, and it is sometimes worn away. In ecological terms, Cellana radians lives attached to rocks and other hard substrates in the littoral and sublittoral zones of the seas surrounding New Zealand.
