''Perisesarma'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

mangrove crab Mangrove crabs are crabs that live in and around mangroves. They belong to many different species and families and have been shown to be ecologically significant by burying and consuming leaf litter. Mangrove crabs have a variety of phylogenie ...

s in the family

Sesarmidae The Sesarmidae are a family of crabs, previously included in the Grapsidae by many authors. Several species, namely in '' Geosesarma'', '' Metopaulias'', and '' Sesarma'', are true terrestrial crabs. They do not need to return to the sea even fo ...

(or

Grapsidae The Grapsidae are a family (biology), family of crabs known variously as marsh crabs, shore crabs, or talon crabs. The family has not been confirmed to form a monophyletic group and some Taxon, taxa may belong in other families. They are found al ...

in some classifications) predominantly found in the

Indo-Pacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...

. Some 23 species are described as of late 2006, with two from

West Africa West Africa, also known as Western Africa, is the westernmost region of Africa. The United Nations geoscheme for Africa#Western Africa, United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Gha ...

: ''P. kammermani'' (De Man, 1883) and ''P. alberti'' Rathbun, 1921. They are typically small, semiterrestrial crabs found on the forest floor at low tide. They eat nearly anything they can, and try to eat anything that does not threaten them — including pencils and other objects dropped on the forest floor. The last species of the genus described is ''P. samawati'' Gillikin and Schubart (2004). It can be found in East Africa along with ''P. guttatum'', but its sister species is ''P. eumolpe'' from Malaysian mangroves. Mangrove Crab Perisesarma sp

Species

* '' Perisesarma alberti'' Rathburn, 1921 * '' Perisesarma bengalense'' Davie, 2003 * '' Perisesarma bidens'' De Haan, 1835 * '' Perisesarma brevicristatum'' Campbell, 1967 * '' Perisesarma cricotus'' Rahayu and Davie, 2002 * '' Perisesarma darwinensis'' Campbell, 1967 * '' Perisesarma dussumieri'' H. Milne Edwar ds, 1953 * '' Perisesarma eumolpe'' De Man, 1895 * '' Perisesarma fasciatum'' Lanchester, 1900 * '' Perisesarma foresti'' Rahayu and Davie, 2002 * '' Perisesarma guttatum'' A. Milne Edwards, 1869 * '' Perisesarma haswelli'' De Man, 1887 * '' Perisesarma huzardi'' Desmarest, 1825 * '' Perisesarma indiarum'' De Man, 1902 * '' Perisesarma kammermani'' De Man, 1883 * ''Perisesarma lanchesteri''

Tweedie Tweedie is a surname of Scotland, Scottish origin. The name is a habitational name from Tweedie, located in the parish of Stonehouse, south of Glasgow. The origin and meaning of the name is unknown.Perisesarma lividum'' A. Milne Edwards, 1869 * '' Perisesarma longicristatum'' Campbell, 1967 * '' Perisesarma maipoensis'' Soh, 1978 * '' Perisesarma messa'' Campbell, 1967 * '' Perisesarma onychophorum'' De Man, 1895 * '' Perisesarma samawati'' Gillikin and Schubart, 2004 * '' Perisesarma semperi'' Bürger, 1893

References

Sesarmidae Taxa named by Johannes Govertus de Man {{Grapsoidea-stub