Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Sally Lightfoot Crab

Grapsus grapsus

Description:

G. grapsus is a typically shaped crab, with five pairs of legs, the front two bearing small, blocky, symmetrical chelae. The other legs are broad and flat, with only the tips touching the substrate. The crab's round, flat carapace is just over 8 cm (3.1 in) in length. Young G. grapsus are black or dark brown in color while adults are brightly colored. Some are muted brownish-red, some mottled or spotted brown, pink, or yellow. The ones seen on photographs of tropical island fauna are often bright orange or red with stripes or spots dorsally, blue and green ventrally, and sporting red claws and pink or blue eyes.

Habitat:

It is found along the Pacific coast of Mexico, Central America, South America (as far south as northern Peru), and nearby islands including the Galapagos Islands. This crab lives amongst the rocks at the often turbulent, windy shore, just above the limit of the sea spray. It feeds on algae primarily, sometimes sampling plant matter and dead animals.

Species ID Suggestions



Sign in to suggest organism ID

3 Comments

EmilieChich
EmilieChich 10 years ago

Nice shot!

alicelongmartin
alicelongmartin 10 years ago

Great Picture!

KarenL
KarenL 10 years ago

Cool!

kate.tillotson
Spotted by
kate.tillotson

Ecuador

Spotted on May 11, 2009
Submitted on Feb 14, 2012

Related Spottings

Zayapa (Red Rock Crab) Red rock crab Sally Lightfoot Crab Grapsus albolineatus

Nearby Spottings

Waved albatross Yellow Warbler Nazca Booby Hood Mockingbird

Reference

Noah Guardians
Noah Sponsors
join Project Noah Team

Join the Project Noah Team