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Grapsus grapsus

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© Anne Frijsinger & Mat Vestjens, Holland

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lexID:
3534 
AphiaID:
422188 
Scientific:
Grapsus grapsus 
German:
Rote Klippenkrabbe 
English:
Sally Lightfoot Crab 
Category:
Krabben 
Family tree:
Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Grapsidae (Family) > Grapsus (Genus) > grapsus (Species) 
Initial determination:
(Linnaeus, ), 1758 
Occurrence:
USA, Dominican Republic, West-Atlantic Ocean, The Bahamas, Mexico (East Pacific), Bermuda, Brazilië, Chili 
Sea depth:
Meter 
Size:
bis zu 7.7cm 
Temperature:
22°C - 29°C 
Food:
Algen 
Difficulty:
Niet geschikt voor huiskameraquaria! 
Related species at
Catalog of Life
:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2019-09-09 21:57:09 

Husbandry

Grapsus grapsus is a crustacean found frequently along the coasts of subtropical and tropical America, on the intertidal rocks (Baird 1978). It belongs to the Grapsidae family and gets its common name, Sally Lightfoot crab from its quick mobility.

The carapace is bright-red in coloration in adults in contrast to the juvenile’s black or greenish carapace which occasionally may be speckled with cream-colored dots and can range anywhere from 5-7 cm in width. It predominantly feeds on algae using their spoon shaped tipped pinchers. G. grapsus runs with extraordinary speed and agility along the upright sides of rocks and has the uncanny ability to hide away in crevices to escape predation by rapacious birds. G. grapsus are mainly solitary but can be seen in large congregations competing for food and mates.

Suborder: Pleocyemata
Order: crabs (Brachyura)
Superfamily: Grapsoidea
Family: square crabs (Grapsidae)
Genre: Grapsus
Species: Grapsus grapsus (Sally Lightfoot crab)

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