Under surface of horseshoe-crab, Limulus polyphemus:. a, abdomen; c, cephalothorax; g, the first gill-bearing abdominal appendage; m, mouth; o, operculum; p, telson; s, metasfoma; 1-6, cephalothoracic limbs
Category hierarchy: Biomes | Water & Wetlands | OceansDescription: A complete shell of a horseshoe crab lies in the tidal line on a beach among dried seaweeds.Capture device: Camera: Canon EOS D30 SLR digitalCapture details: Lens: Canon compact macro 50 mmLocality: Latitude: 2.363450000000000e+001; Longitude: -1.025530000000000e+002