Classification
Within iNaturalist.org

All Names

  • Scientific Names
    • Birgus latro
    • Birgus laticauda
    • Cancer crumenatus
    • Cancer crumenatus orientalis
    • Cancer latro
  • English
    • Robber Crab
    • Coconut Crab

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Recent observations

Photos / Sounds

Square

What

Coconut Crab Birgus latro

Observer

keithkun

Date

July 20, 2016 09:51 AM MDT

Description

Found this guy on another excursion we traveled too, captured at night by using coconuts to find them.

Photos / Sounds

What

Coconut Crab Birgus latro

Observer

luca63

Date

October 21, 2010

Place

Niau (Google, OSM)

Description

few individuals among vegetatios, during the night

Photos / Sounds

Square

What

Coconut Crab Birgus latro

Observer

luca63

Date

September 12, 2009

Place

Niau (Google, OSM)

Description

one individual among vegetation, during the night

Photos / Sounds

Square

What

Coconut Crab Birgus latro

Observer

manila_folder

Date

June 30, 2016 05:06 AM ChST

Photos / Sounds

What

Coconut Crab Birgus latro

Observer

tavita_togia2016

Date

the past

Description

Our best known land crab is the large and edible coconut crab (Birgus latro), which weighs 4-7 pounds and has a leg span up to about 30 inches. It has developed a special lung-like organ of spongy tissue that enables it to breath air. This crab leads a fully terrestrial existence except when it comes time to lay its eggs in the ocean. The eggs hatch into larvae that drift in the ocean for about a month before migrating shoreward. The youngest coconut crabs use a snail shell for protection during this early period but then abandon this practice for the remainder of their long life (up to 40 years). They are nocturnal scavengers that eat coconuts; fruit, dead animals, and other organic materials. There is some uncertainty about the crab's ability to husk and eat coconuts; some observers believe that the crabs are able to do so only if a coconut was damaged when it fell from the tree.

Coconut crabs are easily caught, so few are found in areas where people live. Another liability for these crabs must be trying to cross our island roads, both when small coconut crabs migrate inland from the sea, and again when mature female crabs crawl back to sea to release their eggs. During new moon nights in summer months, squashed crab road-kills are evidence of an untimely end to their journey.

Photos / Sounds

Square

What

Coconut Crab Birgus latro

Observer

carmelo_lopez

Date

June 26, 2015

Photos / Sounds

Square

What

Coconut Crab Birgus latro

Observer

luiz

Date

November 13, 2015 08:24 PM NCT

Description

Land hermit crab

Photos / Sounds

What

Coconut Crab Birgus latro

Observer

rileypollom

Date

May 11, 2015 06:24 AM AWST

Photos / Sounds

Square

What

Coconut Crab Birgus latro

Date

July 29, 2014

Place

Mazatlan (Google, OSM)

Photos / Sounds

Square

What

Coconut Crab Birgus latro

Observer

leonperrie

Date

November 21, 2014

Description

A unga crab.

Photos / Sounds

What

Coconut Crab Birgus latro

Observer

tbay

Date

August 17, 2014

Description

Captured and sold at village fair. Local name for coconut crab is "uga". Live to a very old age if not caught. http://www.seafriends.org.nz/niue/miracles.htm#coconut_crab

Photos / Sounds

Square

What

Coconut Crab Birgus latro

Observer

glokplopit

Date

June 12, 2010 07:11 PM EDT

Place

Agat, Guam (Google, OSM)

Description

Juvenile coconut crab and the shell it had just come out of in Guam.

View all observations

Description from Wikipedia

The coconut crab, Birgus latro, is a species of terrestrial hermit crab, also known as the robber crab or palm thief. It is the largest land-living arthropod in the world, and is probably at the upper size limit for terrestrial animals with exoskeletons in recent Earth atmosphere, with a weight of up to 4.1 kg (9.0 lb). It can grow to up to 1 m (3 ft 3 in) in length from leg to leg. It is found on islands across the...

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Conservation Summary

    No range data available.
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