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Coenobita compressus

中文/日本語

Click different parts of the land hermit crab

Scientific name: Coenobita compressus
Chinese name: 厄瓜多爾產陸寄居蟹(temp. name)
English name: Pacific/Ecuadorian LHC Land Hermit Crab / E-Crab / E
Japanese name: エクアドリアン
Max length of front part (head) of  cephalothorax: 12mm ~ may be the smallest species
Distribution(Map):

Northern Ecuador to Chile

Habitat:

Live near beach

Chirping: Can make sound
Favorite Shell: Nerita scabricosta, Deshayes, Valenciennes, Babylonia areolata, they prefer the shell which have wide mouth.

*Remark

They are very active and run very fast. They run forward, sideways and backwards at all the same speeds. As the body colour of this species is also various, so it may be misunderstood as C. rugosus , but we can identify these 2 species by looking at the eyestalks. There is no black-brown stripes on the eyestalks of C. compressus. They require sea water as they live near the beach and used to drink sea water.

 

Body Colour / Spot
 

Body colour can be Light Brown, Tan, Orange-brown and Dark Gray. Younger tend to be green/blue in colour (bottom picture).

Light brown colour Orange-brown colour
Dark Gray colour Brown colour
Green/Blue colour for younger

There are many white granule / spot on the whole body.

Black diagnol (/) (Red circle) stripe behind the bases of the outer antennae's, on the side of the body. Harder to see on darker one's.

 

 


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 Eyes / Eyestalks
 
Eyes are elongated in shape, Some people just think that their eyes like""(comma). Eyestalks are light brown in colour.
 

Their eyes are not always in black. Some are in brown or even red colour, like below photo. (Thanks to the members form Hermit Crab Association to provide us this information)

 

 


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 Claws / Walking Legs
 

Left claw is larger than right claw. There are about 4~5 ridge (////) on the upper part of the big claw.

 

Shape of big claw has a little bit different among different species

 

Dactylus of 2nd Walking legs (Red circle) is darker than other parts of the legs.
 

 


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 Abdomen
 

Abdomen is quite short and fat (Red circle). (no photo)

 


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C. cavipes C. brevimanus C. perlatus
C. rugosus C. purpureus C. violascens
C. clypeatus C. variabilis C. compressus
C. spinosus C. scaevola C. olivieri
C. carnescens C. pseudorugosus C. rubescens
C. longitarsis Birgus latro

 

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