Geosesarma | |
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Geosesarma aurantium | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Order: | Decapoda |
Suborder: | Pleocyemata |
Infraorder: | Brachyura |
Family: | Sesarmidae |
Genus: | Geosesarma De Man, 1892 |
Type species | |
Sesarma noduliferum [1] de Man, 1892 |
Geosesarma is genus of small freshwater or terrestrial crabs, typically less than 10 mm (0.4 in) across the carapace. [2] They live and reproduce on land with the larval stages inside the egg. They are found from India, [3] through Southeast Asia, to the Solomon Islands and Hawaii. [2]
In the pet trade, they are sometimes called vampire crabs. This has nothing to do with their feeding habits, but rather with the bright, contrastingly yellow eyes of some Geosesarma species. [4]
Geosesarma contains these species: [5] [6]
As of March 2015, professor Peter Ng of National University of Singapore has named 20 Geosesarma species, and he "has another half a dozen or so newly collected Geosesarma species from Southeast Asia in his lab, and these species still need to be named and described." [4] [8]
Geosesarma dennerle and Geosesarma hagen , both originally from Java, are threatened by illegal overcollection for the aquarium trade. [9]
The Ocypodidae are a family of semiterrestrial crabs that includes the ghost crabs and fiddler crabs. They are found on tropical and temperate shorelines around the world.
Macrophthalmus is a genus of crabs which are widespread across the Indo-Pacific. It contains the following species : Species in this genus are often referred to as sentinel crabs.
Hagen Inc. is a pet supplies company headquartered in Montreal, Quebec, Canada, and founded in 1955 by Rolf C. Hagen with the help of his brothers, Dieter and Horst. Dieter and Horst Hagen joined the company later after immigrating from Germany, becoming key members of the firm.
Pseudothelphusidae is a family of freshwater crabs found chiefly in mountain streams in the Neotropics. They are believed to have originated in the Greater Antilles and then crossed to Central America via a Pliocene land bridge. Some species of this family are troglobitic.
Potamonautidae is a family of freshwater crabs endemic to Africa, including the islands of Madagascar, the Seychelles, Zanzibar, Mafia, Pemba, Bioko, São Tomé, Príncipe and Sherbro Island. It comprises 18 extant genera and 138 extant species. Fossil remains dating from the Late Miocene period have been attributed to the family Potamonautidae.
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 for breeding.
Sesarma is a genus of terrestrial crabs endemic to the Americas.
Potamon fluviatile is a freshwater crab found in or near wooded streams, rivers and lakes in Southern Europe. It is an omnivore with broad ecological tolerances, and adults typically reach 50 mm (2 in) in size during their 10–12 year lifespan. They inhabit burrows and are aggressive, apparently outcompeting native crayfish.
Potamon is a genus of freshwater or semiterrestrial crabs mainly found from Southern Europe through the Middle East, and as far east as north-western India. The only exception is the North African P. algeriense, which also is the only potamid of mainland Africa. Twenty species are currently recognised. These crabs are omnivores that have a broad ecological tolerance. The adult Potaman reach up to 50 mm in size during their 10-12 year life span.
Pseudozioidea is a superfamily of crabs, formerly treated in the Eriphioidea, Carpilioidea, Xanthoidea, Pilumnoidea and Goneplacoidea. A number of fossils from the Eocene onwards are known from the family Pseudoziidae. Eleven genera are recognised in three families:
Macrobrachium is a genus of freshwater prawns or shrimps characterised by the extreme enlargement of the second pair of pereiopods, at least in the male.
Hypolobocera is a genus of freshwater crabs in the family Pseudothelphusidae, found in Venezuela, Colombia, Ecuador, and Peru. The major and future threats to these species include human-induced habitat loss/degradation and water pollution.
Syntripsa is a genus of freshwater crabs found in lakes on the Indonesian island of Sulawesi.
Red Devil Vampire Crabs are decapod crustaceans part of Brachyura. They are land living, freshwater crabs from tropical areas and are endemic to Indonesia. Like all other crabs, they have a carapace, two chelae and ten jointed legs. They are omnivorous.
Geosesarma dennerle is a species of small land-living crabs found on Java, Indonesia.
Dennerle is a German company producing aquarium and pond supplies. It was founded in 1966 as a pet store by Ludwig Dennerle in Pirmasens.
Austruca is a genus of Indo-west Pacific fiddler crabs in the family Ocypodidae. There are about 13 described species in this genus.
Leptuca is a genus of fiddler crabs belonging to the family Ocypodidae.
Sesarmops is a genus of crabs in the family Sesarmidae. Its members are distributed through the Indo-West-Pacific oceanic region. They live in freshwater forest streams near the coast, and in mangroves.
Geosesarma albomita is a species of crab of the genus Geosesarma found in Tioman Island, Malaysia.