| Crangonyx grandimanus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Malacostraca |
| Superorder: | Peracarida |
| Order: | Amphipoda |
| Family: | Crangonyctidae |
| Genus: | Crangonyx |
| Species: | C. grandimanus |
| Binomial name | |
| Crangonyx grandimanus Bousfield, 1963 | |
Crangonyx grandimanus is a species of crustacean in family Crangonyctidae. It is endemic to the United States.
Anaspididae is a family of freshwater crustacean that is endemic to Tasmania, Australia. The family contains 3 genera and 5 species. This group of crustaceans are considered living fossils. They are commonly and collectively known as the Tasmanian anaspid crustaceans. Anaspidids have stalked eyes, long antennae and antennules, and a slender body with no carapace. The two species of Allanaspides and the single species of Paranaspides are all listed as vulnerable on the IUCN Red List.
Allocrangonyx is a genus of troglobitic amphipod crustaceans from the South Central United States. The two species are both listed as vulnerable on the IUCN Red List. The animals are blind and unpigmented. During the male's development, the outer ramus of the third uropod differentiates into secondary segments and grows to a length greater than the animal's body length.
Branchinecta is a genus of crustacean in family Branchinectidae. It includes around 50 species, found on all continents except Australia. Branchinecta gigas, the giant fairy shrimp, is the largest species in the order, with a length of up to 10 centimetres (4 in), and Branchinecta brushi lives at the highest altitude of any crustacean, at 5,930 metres (19,460 ft), a record it shares with the copepod Boeckella palustris. A new genus, Archaebranchinecta was established in 2011 for two species previously placed in Branchinecta.
Branchinella wellardi is a species of crustacean in the family Thamnocephalidae. It is endemic to Australia.
Crangonyx dearolfi, also known as the Pennsylvania cave amphipod or Pennsylvania cave crangonyctid, is a species of crustacean in family Crangonyctidae. It is endemic to the United States, where it is found in caves in Pennsylvania and Maryland.
Crangonyx is a genus of crustacean in family Crangonyctidae. Crangonyx species can live in marshes, savannas or swamps as well as caves. It contains the following species:
Crangonyx hobbsi is a species of troglobitic amphipod in the family Crangonyctidae. It is only known from its type locality, which is "a well, 50 feet deep, 1.5 miles northeast of Chiefland, Levy Co., Florida". It is listed as a vulnerable species on the IUCN Red List.
Mexilana saluposi is a species of crustacean in the family Cirolanidae, the only species in the genus Mexilana. It is endemic to Mexico.
Mexistenasellus is a genus of isopod crustaceans in the family Stenasellidae.
Namibcypris costata is an extinct species of ostracod crustaceans in the family Candonidae, possibly endemic to the southern Kaokoveld in northern Namibia.
Newnhamia is a genus of ostracods. It contains five species, four of which are endemic to Australia and surrounding islands, while a fifth was described in 2003 from Kerala, India. Two species from South America, described as species of Newnhamia, do not appear to be closely related to the remaining species, and probably belong in a different genus. N. fuscata and N. insolita are both listed as vulnerable species on the IUCN Red List.
Onchotelson is a genus of isopod crustaceans in the family Phreatoicidae, which is endemic to Tasmania. It contains two species, both of which are listed as vulnerable on the IUCN Red List:
Pseudoniphargus grandimanus is a species of crustacean in family Hadziidae. It is endemic to Bermuda.
Sphaerolana is a genus of isopod crustaceans in the family Cirolanidae, all of which are endemic to Mexico.
Stygobromus is a genus of amphipod crustaceans that live in subterranean habitats. As well as a large number of species in North America, a smaller number of species are also known from Eurasia. Most of the North American species live in areas which were not covered by the Laurentide Ice Sheet, although a few species seem to have survived under the ice. A number of species are on the IUCN Red List as endangered species (EN) or vulnerable species (VU); all the listed species are endemic to the United States. One species, S. lucifugus, is extinct. Stygobromus includes the following species:
Thermosphaeroma is a genus of crustacean in family Sphaeromatidae. They occur exclusively in hot springs of southwestern United States and central Mexico.
Uramphisopus pearsoni is a species of isopod crustaceans in the family Phreatoicidae. It is only found in Brandum Bay basin in the north of Great Lake, Tasmania.
Crangonyctidae is a family of cave-dwelling freshwater amphipod crustaceans. It contains the following genera:
Crymostygius thingvallensis is a species of subterranean amphipod crustacean, endemic to the area around Þingvallavatn, a lake in southwestern Iceland. The species has no close relatives, and is placed in its own family, Crymostygidae. This distinctness has been confirmed by molecular phylogenetics.
Macrobrachium grandimanus, also called Hawaiian river shrimp or ʻopae ʻoeahaʻa in Hawaiian, is a species of shrimp. It has an amphidromous life cycle and is endemic to the Hawaiʻi islands.
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