| Mahatha | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Gecarcinucidae |
| Genus: | Mahatha Ng & Tay, 2001 |
| Type species | |
| Mahatha adonis Ng & Tay, 2001 | |
| Species | |
| |
Mahatha is a genus of freshwater crabs endemic to Sri Lanka. Four of the six species are critically endangered due to habitat loss, [1] and two are listed as Least Concern on the IUCN Red List.
Mahatha adonis is a widespread species, known from the Mahaweli Basin, Knuckles Massif and Monaragala. It is considered a species of Least Concern by the IUCN. [2]
Mahatha helaya is only known from its type locality, near Kalupahana on the main Colombo-Haputale road, and is therefore considered critically endangered by the IUCN. [3] The specific epithet helaya comes from the Sinhalese word for an inhabitant of Sri Lanka. [4]
Mahatha iora is only known from its type locality, near the Dunhinda Falls, and is therefore considered critically endangered by the IUCN. [5]
Mahatha lacuna is only known from its type locality, near Galle, and is therefore considered critically endangered by the IUCN. [6] The specific epithet lacuna, from the Latin for "hole", refers to the deep burrow in which the species was found. [4]
Mahatha ornatipes was originally described in 1915 by Roux as Paratelphusa ornatipes, and was later described as Ceylonthelphusa inflatissima Bott, 1970. It is widespread in the wet zone of Sri Lanka and is considered a species of Least Concern by the IUCN. [7]
Mahatha regina is only known from its type locality, near Pundaluoya, and is therefore considered critically endangered by the IUCN. [8] The specific epithet regina (Latin for "queen") refers to the species' "regal appearance". [4]
Ceylonthelphusa alpina is a species of freshwater crabs in the family Gecarcinucidae. The species is endemic to Sri Lanka, and is classed as an endangered due to habitat degradation.
Ceylonthelphusa is a genus of freshwater crabs endemic to Sri Lanka, where they live in moist lowland forests, swamps and rivers. Many of the species are on the IUCN Red List of threatened species, with the greatest risk factor being habitat loss. Ceylonthelphusa contains these species:
Ceylonthelphusa armata is a species of freshwater crabs in the family Gecarcinucidae. The species is endemic to Sri Lanka, and is classed as an endangered due to habitat degradation.
Ceylonthelphusa diva is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa durrelli is a species of decapod in the family Gecarcinucidae. It is native to Central Province, Sri Lanka.
Ceylonthelphusa kandambyi is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa kotagama is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa orthos is a species of crab in the family Gecarcinucidae.
Ceylonthelphusa sanguinea is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa savitriae is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa sentosa is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa soror is a species of decapod in the family Gecarcinucidae.
Clinothelphusa kakoota is a species of crab in the family Gecarcinucidae, which is endemic to Sri Lanka. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical swamps, and rivers. It is threatened by habitat loss, and is listed as a critically endangered species on the IUCN Red List. It is known from a single site with an area of less than 100 km2 (39 sq mi). Its nearest relatives are another Sri Lankan endemic genus of crabs, Ceylonthelphusa.
Oziotelphusa is a genus of freshwater crabs in the family Gecarcinucidae. Its members are found in Sri Lanka and southern India. The genus was formerly placed within family Parathelphusidae, but now it is accepted that Parathelphusidae is the junior synonym of Gecarcinucidae.
Oziotelphusa minneriyaensis is a species of crustacean in family Parathelphusidae. It is endemic to Sri Lanka. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical swamps, and rivers. It is threatened by habitat loss.
Pastilla dacuna is a species of freshwater crab in the monotypic genus Pastilla in the family Gecarcinucidae. It is endemic to Sri Lanka. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical swamps, and rivers. It is threatened by habitat loss.
Perbrinckia is a genus of freshwater crabs of the family Gecarcinucidae that is endemic to Sri Lanka, named after Per Brinck. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical swamps, and rivers. It contains 14 species, most of which are included on the IUCN Red List as critically endangered species (CR) or vulnerable species (VU) because they are threatened by habitat loss; only one species is of least concern (LC).
Perbrinckia punctata is a species of crab in the family Gecarcinucidae.
Spiralothelphusa fernandoi is a species of crab in the family Gecarcinucidae.
Spiralothelphusa is a genus of freshwater crabs in the family Gecarcinucidae. It contains these species, all of which are included on the IUCN Red List:
{{cite book}}: CS1 maint: location missing publisher (link)