Perbrinckia
Encyclopedia
Perbrinckia is a genus
of freshwater crab
s endemic to Sri Lanka
. Its natural habitat
s are subtropical or tropical moist lowland forests
, subtropical or tropical swamp
s, and river
s. It contains 13 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).
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of freshwater crab
Freshwater crab
There are around 1,300 species of freshwater crabs, distributed throughout the tropics and subtropics, divided among eight families. They show direct development and maternal care of a small number of offspring, in contrast to marine crabs which release thousands of planktonic larvae. This limits...
s endemic to Sri Lanka
Sri Lanka
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka is a country off the southern coast of the Indian subcontinent. Known until 1972 as Ceylon , Sri Lanka is an island surrounded by the Indian Ocean, the Gulf of Mannar and the Palk Strait, and lies in the vicinity of India and the...
. Its natural habitat
Habitat
* Habitat , a place where a species lives and grows*Human habitat, a place where humans live, work or play** Space habitat, a space station intended as a permanent settlement...
s are subtropical or tropical moist lowland forests
Tropical rainforest
A tropical rainforest is an ecosystem type that occurs roughly within the latitudes 28 degrees north or south of the equator . This ecosystem experiences high average temperatures and a significant amount of rainfall...
, subtropical or tropical swamp
Swamp
A swamp is a wetland with some flooding of large areas of land by shallow bodies of water. A swamp generally has a large number of hammocks, or dry-land protrusions, covered by aquatic vegetation, or vegetation that tolerates periodical inundation. The two main types of swamp are "true" or swamp...
s, and river
River
A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...
s. It contains 13 species, most of which are included on the IUCN Red List
IUCN Red List
The IUCN Red List of Threatened Species , founded in 1963, is the world's most comprehensive inventory of the global conservation status of biological species. The International Union for Conservation of Nature is the world's main authority on the conservation status of species...
as critically endangered species (CR) or vulnerable species
Vulnerable species
On 30 January 2010, the IUCN Red List of Threatened Species identified 9694 Vulnerable species, subspecies and varieties, stocks and sub-populations.-References:...
(VU) because they are threatened by habitat loss
Habitat destruction
Habitat destruction is the process in which natural habitat is rendered functionally unable to support the species present. In this process, the organisms that previously used the site are displaced or destroyed, reducing biodiversity. Habitat destruction by human activity mainly for the purpose of...
; only one species is of least concern
Least Concern
Least Concern is an IUCN category assigned to extant taxon or lower taxa which have been evaluated but do not qualify for any other category. As such they do not qualify as threatened, Near Threatened, or Conservation Dependent...
(LC).
- Perbrinckia cracens Ng, 1995
- Perbrinckia enodis (Kinglsey, 1880)
- Perbrinckia fenestra Bahir & Ng, 2005
- Perbrinckia fido Ng, 1995
- Perbrinckia gabadagei Bahir & Ng, 2005
- Perbrinckia glabra Ng, 1995
- Perbrinckia integra Ng, 1995
- Perbrinckia morayensis Ng & Tay, 2001
- Perbrinckia punctata Ng, 1995
- Perbrinckia quadratus Ng & Tay, 2001
- Perbrinckia rosae Bahir & Ng, 2005
- Perbrinckia scansor (Ng, 1995)
- Perbrinckia scitula Ng, 1995