Oziotelphusa is a genus 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 in the family Parathelphusidae

Parathelphusidae

Parathelphusidae is a family of freshwater crabs mainly in Southeast Asia. Their closest living relatives are the Gecarcinucidae.The Parathelphusidae inhabit rivers, lakes and rice paddies. Some species, for example from the genus Somanniathelphusa, are locally important as food, particularly in...

. Its members are found in 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...

 and southern India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

 (throughout Kerala

Kerala

or Keralam is an Indian state located on the Malabar coast of south-west India. It was created on 1 November 1956 by the States Reorganisation Act by combining various Malayalam speaking regions....

 and Tamil Nadu

Tamil Nadu

Tamil Nadu is one of the 28 states of India. Its capital and largest city is Chennai. Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by the union territory of Pondicherry, and the states of Kerala, Karnataka, and Andhra Pradesh...

 and in the southern part of Karnataka

Karnataka

Karnataka , the land of the Kannadigas, is a state in South West India. It was created on 1 November 1956, with the passing of the States Reorganisation Act and this day is annually celebrated as Karnataka Rajyotsava...

).

The genus Oziotelphusa contains fifteen species, all 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...

 (LC: least concern; VU: vulnerable; EN: endangered; CR: critically endangered; DD: data deficient):

Species	Authority	Year	Distribution	IUCN status	Notes
Oziotelphusa aurantia		1799	(Tamil Nadu Tamil Nadu Tamil Nadu is one of the 28 states of India. Its capital and largest city is Chennai. Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by the union territory of Pondicherry, and the states of Kerala, Karnataka, and Andhra Pradesh... )		known only from the type specimen
Oziotelphusa biloba	Bahir & Yeo	2005	(Kerala Kerala or Keralam is an Indian state located on the Malabar coast of south-west India. It was created on 1 November 1956 by the States Reorganisation Act by combining various Malayalam speaking regions.... )		Kodagara and Koratti villages
Oziotelphusa bouvieri		1904	(Tamil Nadu Tamil Nadu Tamil Nadu is one of the 28 states of India. Its capital and largest city is Chennai. Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by the union territory of Pondicherry, and the states of Kerala, Karnataka, and Andhra Pradesh... )		only known from type locality
Oziotelphusa ceylonensis		1960			nine localities
Oziotelphusa dakuna	Bahir & Yeo	2005			only known from 1 or 2 locations
Oziotelphusa gallicola	Bahir & Yeo	2005			around Galle Galle Galle is a city situated on the southwestern tip of Sri Lanka, 119 km from Colombo. Galle is the capital city of Southern Province of Sri Lanka and it lies in Galle District....
Oziotelphusa hippocastanum		1887
Oziotelphusa intuta	Bahir & Yeo	2005			only known from type locality
Oziotelphusa kerala	Bahir & Yeo	2005	(Kerala Kerala or Keralam is an Indian state located on the Malabar coast of south-west India. It was created on 1 November 1956 by the States Reorganisation Act by combining various Malayalam speaking regions.... )		known only from the type specimen
Oziotelphusa kodagoda	Bahir & Yeo	2005			only known from type locality
Oziotelphusa mineriyaensis	Bott	1970			two localities: Minneriya Minneriya Minneriya is a small town in Sri Lanka, and is famous for two things , for the great Minneriya lake build by King Mahasen and for the Minneriya National Park which is a hot spot for safari lovers because of the abandons of Elephants...  and Anuradhapura Anuradhapura Anuradhapura, , is one of the ancient capitals of Sri Lanka, famous for its well-preserved ruins of ancient Lankan civilization.The city, now a UNESCO World Heritage Site, lies 205 km north of the current capital Colombo in Sri Lanka's North Central Province, on the banks of the historic...
Oziotelphusa populosa	Bahir & Yeo	2005			two localities
Oziotelphusa ritigala	Bahir & Yeo	2005			two localities: Ritigala Ritigala Ritigala is an ancient Buddhist monastery in Sri Lanka. The ruins and rock inscriptions of the monastery date back to 1st century BCE. It is located 43 km away from the ancient monastic city of Anuradhapura.- Ritigala Mountain :...  and Mundel
Oziotelphusa stricta	Ng & Tay	2001
Oziotelphusa wagrakarowensis		1904	(Karnataka Karnataka Karnataka , the land of the Kannadigas, is a state in South West India. It was created on 1 November 1956, with the passing of the States Reorganisation Act and this day is annually celebrated as Karnataka Rajyotsava... )