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

Fiddler Crab

Uca sp.

Description:

Dark grey tiny crab, not more than 2cm across the body. Males (pic No 2 and 3) wave one disproportionately large arm/claw - it seems that enormous claw can be on any side of the body, saw lefties and righties equally... Females (pics 1 and 3) have two small claws.

Habitat:

Found on sandy beaches and brackish lagoons around Freetown, in mangrove ecosystem - coastal ecosystem composed mainly of Red Mangrove tree (Rhizophora mangle, pic No 4).

Notes:

Earlier, it seems that all fiddler crabs were classified into the same genus, genus Uca of Ocypodidae family. This has changed in 2016, and fiddler crabs constitute 11 genera today. I kept the old classification as I don't really know how to ID these crabs...

1 Species ID Suggestions

West African Fiddler Crab, female,
Afruca tangeri (Eydoux, 1835), Ocypodidae Afruca tangeri - Wikipedia


Sign in to suggest organism ID
Zlatan Celebic
Spotted by
Zlatan Celebic

Sussex, Western Area, Sierra Leone

Spotted on Sep 18, 2021
Submitted on Sep 20, 2021

Spotted for Mission

Noah Guardians
Noah Sponsors
join Project Noah Team

Join the Project Noah Team