Horseshoe crab

Description: A common site along the east coast of North America, horseshoe crabs are well adapted to their environment and have remained virtually unchanged throughout millions of years. These animals are actually not crabs at all, but belong to their own special class called Merostomata, which means legs attached to the mouth. This refers to the fact that horseshoe crabs lack jaws and must use their spiny legs to crush and grind food before it is guided into their mouths.
Source: http://www.digitalindy.org/cdm/ref/collection/tcm/id/987
Collection: The Children's Museum of Indianapolis
Rights: https://creativecommons.org/licenses/by-sa/3.0/;
Copyright: Creative Commons (CC By-SA 3.0);
Subjects: Crabs
Horseshoe crabs
Limulus polyphemus

Further information on this record can be found at its source.