The California spiny lobster has an elongated body and a hard exoskeleton, usually brown in color with yellow or orange patterns. It is distinguished by its long, spiny antennae which play a crucial role in its movement and in detecting surrounding objects.

The California spiny lobster inhabits the temperate waters along the eastern coast of the Pacific ocean, particularly those of California and the Gulf of California. It is also found around the islands of Baja California and the Sea of Cortez.

The California spiny lobster is primarily found on rocky bottoms and coral reefs between 16 and 213 feet deep, where it can hide in crevices or caves to protect itself from predators.

The California lobster feeds on benthic invertebrates and mollusks.

Unlike lobsters, they do not have claws, which makes them more vulnerable to predators.

The reproduction of the California spiny lobster is sexual, with a breeding season typically extending from spring to fall. Females carry their eggs under their abdomen until they hatch. The young larvae go through several developmental stages before settling on the seafloor and metamorphosing into adults.

The California lobster is of great importance to commercial fishing, particularly in California, where it is a major food resource. The fishing of California lobsters is strictly regulated to ensure the sustainability of the population, with limited fishing seasons, especially to avoid reproduction periods and minimum capture sizes to preserve the development of young lobster generations.