Classification
Within iNaturalist.org

All Names

  • English
    • Horseshoe Crabs
  • Spanish
    • Cangrejos cacerola
  • Scientific names
    • Merostomata

Extras

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Creative Commons Flickr Photos Tagged "Merostomata."
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Recent observations

Photos

What

Horseshoe Crab Limulus polyphemus

Observer

anita363

Date

May 24, 2009 11:24 AM EDT

Description

This adult female horseshoe crab was badly tangled in a line that was twined all around her claws and body. We managed to cut it free, and Don (the group leader) brought her back down to the water's edge and sent her on her way.

Photos

8392198256_952f481f34_s

Observer

damontighe

Date

Jan 15, 2013 09:51 AM HST

Description

Atlantic Horseshoe Crab (Limulus polyphemus), Tampa Bay, Florida

Photos

Observer

jeanloujustine

Date

Aug 19, 2012

Description

Horseshoe crabs mating in shallow water

Photos

579890_337301076363396_1637742880_n

What

Horseshoe Crab Limulus polyphemus

Observer

nickb42697

Date

Aug 18, 2012

Place

(Somewhere...)

Description

They are pretty common in this area, though live, mature specimens are less common. Usually solitary. Front-most piece of the carapace was no wider than a foot, though the entire length was more than a foot.

Tags

Photos

2678_511122244988_4454637_n

What

Horseshoe Crab Limulus polyphemus

Observer

lampas

Date

Jun 12, 2005

Photos

What

Horseshoe Crab Limulus polyphemus

Observer

muir

Date

Jun 4, 2012 06:16 PM EDT

Photos

What

Horseshoe Crab Limulus polyphemus

Observer

muir

Date

Jun 4, 2012 06:34 PM EDT

Description

Mating. One of the few attached pairs seen during daylight hours.

Tags

Photos

P1070847

What

Horseshoe Crab Limulus polyphemus

Observer

muir

Date

Jun 4, 2012 09:06 PM EDT

Description

Last call for us. We ate dinner in town and then went out again (high tide was around 9:30). The full moon was beautiful--when it was visible amongst the clouds. There were many more copulating pairs being tossed around in the surf. But obviously a bit trickier to photograph well.

Photos

Square

What

Horseshoe Crab Limulus polyphemus

Observer

damianbx

Date

May 25, 2012 06:45 PM EDT

Place

(Somewhere...)

Description

Orchard beach, mating season begins

Photos

What

Horseshoe Crab Limulus polyphemus

Observer

muir

Date

May 6, 2012 02:03 PM EDT

Description

Waves knocked it up on shore, upside down. I returned it right side up, and it scuttled back from whence it came. Only one seen. An early breeder?

Photos

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What

Horseshoe Crab Limulus polyphemus

Observer

corychia

Date

May 26, 2010

Description

9:17pm

when sun was almost set they started to move ashore

Photos

Square

What

Horseshoe Crab Limulus polyphemus

Observer

greenrosettas

Date

Apr 20, 2011

Description

There were a bunch of these moving around on the sandbar. This one looked like it survived a close encounter with a toothy predator.

Tags