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Tag: Libinia emarginata

Common spider crab (Libinia emarginata)

Common spider crab (Libinia emarginata)

While working in Pleasant Bay in Chatham last week, I saw numerous pairs of common spider crabs (Libinia emarginata) in the shallow water. Spider crabs have quite a different look from other local crabs. Their carapace is rounder with a distinctive beaklike protrusion. Their eight walking legs and two claws are long and narrow giving them a very spider-like appearance. This species is also called “nine-spined spider crab” due to the nine spines, or bumps, running down the center of…

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