Highly sculptured and ornate, the rough exterior of this shell gives way to a beautifully smooth inner surface. Juveniles of the breed are almost white and become black with age.
There are 700 known species in this beautiful family of shells and they are noted for their unique shape and curving spines.
Typically feeding on bivalves, shrimp, and sponge among other creatures of similar size, they can be found in sand or mud flats, and on coral reefs.
When the frond-like spines are coated with sea moss, the shell may be completely camouflaged amid rocks or on reefs.
This seashell is common to inter-tidal waters around the Gulf of California.
Size: approx 10-11 cm long