Gregory "Slobirdr" Smith, USA, USA
Info
Grapsus grapsus (Linnaeus, 1758)
The Sally Lightfoot Crab can be found intertidal on hard bottom, rocks ans rubble.
Grapsus grapsus is a crab that is often found on the coasts of tropical and subtropical America, along the intertidal zone on rocks. It belongs to the family Grapsidae. It is known as the Sally Lightfoot Crab because of its mobility and speed. When fleeing from birds of prey, the crab hides in crevices in a flash.
In adults, the carapace is bright red in basic coloration, in contrast to juveniles, whose carapace is usually black or greenish, occasionally speckled with cream-colored dots and can reach 5-7 cm in width.
Grapsus grapsus feeds mainly on algae, which it scrapes off the substrate with its spoon-shaped claws. However, these crabs also remove washed-up carrion.
The red rock crab is a very common species and can be found in large numbers. It lives in the intertidal zone on hard bottoms, rocks, stones and gravel.
Grapsus grapsus is host to the following parasites:
Lobocepon grapsi Nobili, 1905 accepted as Kepon grapsi (Nobili, 1905) Feedingtype: parasitic, Stage: adult
Sacculina infirma Boschma, 1953 Feedingtype: parasitic, Stage: adult
Synonymised names:
Cancer grapsus Linnaeus, 1758
Cancer jumpibus Swire, 1938
Grapsus altifrons Stimpson, 1860 (junior synonym)
Grapsus maculatus H. Milne Edwards, 1853
Grapsus ornatus H. Milne Edwards, 1853
Grapsus pictus Lamarck, 1801 (junior synonym)
The Sally Lightfoot Crab can be found intertidal on hard bottom, rocks ans rubble.
Grapsus grapsus is a crab that is often found on the coasts of tropical and subtropical America, along the intertidal zone on rocks. It belongs to the family Grapsidae. It is known as the Sally Lightfoot Crab because of its mobility and speed. When fleeing from birds of prey, the crab hides in crevices in a flash.
In adults, the carapace is bright red in basic coloration, in contrast to juveniles, whose carapace is usually black or greenish, occasionally speckled with cream-colored dots and can reach 5-7 cm in width.
Grapsus grapsus feeds mainly on algae, which it scrapes off the substrate with its spoon-shaped claws. However, these crabs also remove washed-up carrion.
The red rock crab is a very common species and can be found in large numbers. It lives in the intertidal zone on hard bottoms, rocks, stones and gravel.
Grapsus grapsus is host to the following parasites:
Lobocepon grapsi Nobili, 1905 accepted as Kepon grapsi (Nobili, 1905) Feedingtype: parasitic, Stage: adult
Sacculina infirma Boschma, 1953 Feedingtype: parasitic, Stage: adult
Synonymised names:
Cancer grapsus Linnaeus, 1758
Cancer jumpibus Swire, 1938
Grapsus altifrons Stimpson, 1860 (junior synonym)
Grapsus maculatus H. Milne Edwards, 1853
Grapsus ornatus H. Milne Edwards, 1853
Grapsus pictus Lamarck, 1801 (junior synonym)
