Horseshoe crab  (Limulus polyphemus)

Horseshoe crab larva
Horseshoe crab larva
© www.osfimages.com
Horseshoe crab
Horseshoe crab
© Rick Price/SAL / www.osfimages.com
Horseshoe crab walking on sea bed
Horseshoe crab walking on sea bed
© David Cayless / www.osfimages.com
Horseshoe crab eye detail
Horseshoe crab eye detail
© Rodger Jackman / www.osfimages.com
Group of male horseshoe crabs surrounding female
Group of male horseshoe crabs surrounding female
© Nigel Marven / naturepl.com
Horseshoe crabs on shore
Horseshoe crabs on shore
© Doug Wechsler / naturepl.com
Horseshoe crab courtship behaviour
Horseshoe crab courtship behaviour
© Joe McDonald / Auscape International
Pair of horseshoe crabs on sea bed
Pair of horseshoe crabs on sea bed
© Rodger Jackman / www.osfimages.com
Horseshoe crab laying eggs
Horseshoe crab laying eggs
© Jim Zipp / www.ardea.com
Turnstones eating horseshoe crab eggs
Turnstones eating horseshoe crab eggs
© Doug Wechsler / naturepl.com
Horseshoe crab swiming
Horseshoe crab swiming
© David Cayless / www.osfimages.com
Horseshoe crab crossing sand, showing track
Horseshoe crab crossing sand, showing track
© Doug Wechsler / naturepl.com
Upturned horseshoe crab
Upturned horseshoe crab
© Mike Price/SAL / www.osfimages.com