The Parastacidae are the family of freshwater crayfish found in the Southern Hemisphere. The family is a classic Gondwana-distributed taxon, with extant members in South America, Madagascar, Australia, New Zealand, and New Guinea, and extinct taxa also in Antarctica.
Astacoides is a genus of freshwater crayfish endemic to Madagascar. The first specimens were brought to Europe in 1839, and seven species are now recognised, most of which are considered as threatened on the IUCN Red List. They are large and slow-growing, and are threatened by habitat loss, overexploitation by local people and by spread of introduced non-indigenous marbled crayfish. They are only found in a relatively small part of the island, mostly in undisturbed upland areas. They belong to the Gondwana-distributed family Parastacidae, but their nearest relatives live in Australasia, there being no native crayfish in mainland Africa or India.
Astacoides caldwelli is a species of crustacean in family Parastacidae. It is endemic to Madagascar. A. caldwelli is mostly found in rivers draining forested areas at elevations between 600 - 800m. The populations are threatened by habitat loss as well as predation by introduced species and harvesting at a subsistence level from local fishermen.
Astacoides crosnieri is a species of crustacean in family Parastacidae. It is endemic to Madagascar, being widespread in the former Province Fianatantsoa. A. crosnieri inhabits swampy areas at an elevation between 500 – 1000 m above sea level.
Astacoides granulimanus is a species of southern crawfish in the family Parastacidae.
Astacoides madagascarensis is a species of southern crawfish in the family Parastacidae.
Astacoides petiti is a species of southern crawfish in the family Parastacidae.
Euastacus bindal is a species of southern crawfish in the family Parastacidae.
Euastacus bispinosus, the Glenelg cray, is a species of southern crawfish in the family Parastacidae.
Euastacus crassus is a species of southern crayfish in the family Parastacidae. It is commonly known as the Alpine spiny crayfish.
Euastacus diversus is a species of southern crawfish in the family Parastacidae.
Euastacus eungella is a species of southern crawfish in the family Parastacidae.
Euastacus fleckeri is a species of southern crawfish in the family Parastacidae.
Euastacus hystricosus is a species of southern crawfish in the family Parastacidae.
Euastacus monteithorum is a species of southern crawfish in the family Parastacidae.
Euastacus neodiversus is a species of southern crawfish in the family Parastacidae.
Euastacus robertsi is a species of southern crawfish in the family Parastacidae.
Euastacus setosus is a species of southern crawfish in the family Parastacidae.
Euastacus urospinosus is a species of southern crawfish in the family Parastacidae.
Euastacus yigara is a species of southern crawfish in the family Parastacidae.
