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Coenobita clypeatus

中文/日本語

Click different parts of the land hermit crab

Scientific name: Coenobita clypeatus
Chinese name: 西伯利斯陸寄居蟹
English name: Purple Pincer Land Hermit Crab(PP) / Caribbean
Japanese name: バープル・ピンチャー / カリビアン
Max length of front part (head) of  cephalothorax: 17mm
Distribution(Map):

Arabian Sea, Caribbean Sea, Bermuda Islands, Northern Florida, Venezuela

Habitat:

Live in the inland area and like to hide themselves in the cave or root of tree.

Chirping: Can make sound
Favorite Shell: West Indian Top Shell (Cittarium pica), Turbo shell, Cancellariidae, Tonna Shell

*Remark

American species, but some people misidentify C. brevimanus as C. clypeatus.

The following species information  is for reference only

 Body Colour / Spot
 

Mainly in Red and Pink-red colour. Some crabs are  full of red. Some are light red and their walking legs have some purple (Red circle) or orange (White colour). Some of the body colour of this species are in  orange. Generally , the body colour of their juvenile are sandy or light yellow. The surface of big claw is purple, red colour will become much more when they grow up.

Red colour Pink-red colour
Orange colour Orange colour

There are many black granule / spot on their walking legs and claws.

 

 


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 Eyes / Eyestalks
 

Eyes are round in shape. But the shape is a little different with C. brevimanus, i.e. the bottom part of eyestalks of C. clypeatus is rather thick. Eyes of C. clypeatus is not in black colour, but a little bit brown (below 2 pictures). Eyestalks is white and the there is some black-brown stripes on the eyestalks (Red arrow).

 


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 Claws / Walking Legs
 

Left claw is larger than right claw. The surface of big claw is purple (Red circle) and there is no ridge (////) on the upper part of the big claw. There are some hair on the inside part of both claws. It is believed that the big claw of elder crab, purple colour is not so obvious.

Photo from:http://blog.xuite.net/dracula21/ggcrab
There is no purple colour on the big claw

Walking legs is strong and the last 2 parts (dactylus & propodus) of their 3rd left walking leg (Red circle) are very strong.
 

 


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 Abdomen
 

Abdomen is quite Short and fat (Red circle).

 


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 Juvenile
 

It is believed that the body colour of their juvenile are sandy or light yellow. There are many black granule / spot on the body. There are some light purple colour on the surface of the big claw.

 


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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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