Romaleon antennarium, commonly known as the Pacific rock crab, features a robust, oval-shaped carapace with pronounced, spiny edges. Inhabiting rocky coastal waters of the northeastern Pacific Ocean, it can reach a size of 7 inches across the shell and weigh around 2 pounds. It is an opportunistic feeder and is known for its active foraging behavior. This summary is AI generated
Water type
IUCN Status
Threat to humans
Source: Fishbase
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Pacific rock crab
length · weight
Pacific rock crab
length · weight


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