Project Noah

Project Noah is a tool to explore and document wildlife and a platform to harness the power of citizen scientists everywhere.

Join Project Noah Today

Atlantic Horseshoe Crab

Limulus polyphemus


Atlantic horseshoe crabs at the Tulsa Aquarium. Horseshoe crabs have blue blood and it has medicinal purposes, such as curing blood poisoning. As such its very valuable. Sadly this means that horseshoe crabs are farmed and bled to collect it. Interestingly the horseshoe crab isn't really a crab, they're more closely related to arachnids than they are crustaceans.


Found in the Gulf of Mexico and the Atlantic Coast.

No species ID suggestions

Tulsa, Oklahoma, USA

Lat: 36.15, Long: -96.00

Spotted on Nov 11, 2018
Submitted on Nov 11, 2018

Spotted for mission

Related spottings

Horseshoe crab Atlantic horseshoe crab Horseshoe Crab Atlantic Horseshoe Crab

Nearby spottings

Slender Spined Porcupine Fish Lookdown Longhorn cowfish White Crappie