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Sally Lightfoot Crab

Grapsus grapsus

Description:

These seem to be a darker color phase than the males I spotted previously: http://www.projectnoah.org/spottings/745... CDF of the Galapagos: Are these females or juveniles?



No species ID suggestions

5 Comments

katelew02
katelew02 5 years ago

Cool

Yes, these guys are fascinating. I worked on them half a century ago. For some info look at http://www.darwinfoundation.org/datazone...
or http://www.ncbi.nlm.nih.gov/pubmed/55977.... My basic paper is long - and in German, though.

akshaya
akshaya 5 years ago

beauty ! nice shot dear

NeilDazet
NeilDazet 5 years ago

Thank you for the info! These crabs were really neat to observe and photograph. One of my favorite animals from my Galapagos trip!

I would guess this is a female, because I don't see bristles on the front walking legs and ther claws are relatively small. But it also could be a half grown male. The only way to be sure, as with all crabs, would be to look at the abdomen, which is narrow in males and wide in females.

Provincia de Galápagos, Ecuador

Lat: -0.74, Long: -90.31

Spotted on Oct 22, 2013
Submitted on Nov 16, 2013

Reference

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