| Tetraliidae | |
|---|---|
 | |
| Tetraloides nigrifrons (dorsal view) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Section: | Eubrachyura |
| Subsection: | Heterotremata |
| Superfamily: | Trapezioidea |
| Family: | Tetraliidae Castro, Ng & Ahyong, 2004 [1] |
The World Register of Marine Species lists the following genera: [1]
The Ocypodoidea, or ocypoid crabs, are a superfamily of crabs, named after the genus Ocypode. It contains the following families:
Ovalipes is a genus of crabs in the family Ovalipidae.
Xanthoidea is a superfamily of crabs, comprising seven families. Formerly, a number of other families were included in Xanthoidea, but many of these have since been removed to other superfamilies. These include Carpilioidea, Eriphioidea, Hexapodoidea, Pilumnoidea and Trapezioidea. Even in this reduced state, Xanthoidea remains one of the most species-rich superfamilies of crabs.
Procaris is a genus of shrimp in the family Procarididae. It contains the following species:
Paralomis is a widely distributed, highly speciose, and morphologically diverse genus of king crabs in the subfamily Lithodinae.
The Aethridae are a family of crabs in their own superfamily, Aethroidea. It contains these genera :
Cryptolithodes sitchensis, known as the umbrella crab and the turtle crab, is a species of king crab native to coastal regions of the northeastern regions of the Pacific Ocean, ranging from Sitka, Alaska to Point Loma, California. Its carapace extends over its legs such that when it pulls in its legs, it resembles a small stone. It lives in rocky areas from the low intertidal to depths of 37 m (121 ft).
Dakoticancroidea is a superfamily of fossil crabs divided into the following two families:
Palicoidea is a superfamily of crabs, comprising the two families Crossotonotidae and Palicidae. Together, they contain 13 genera, including two genera in the Palicidae known only from fossils. The two families were previously treated as two subfamilies in a Palicidae of wider circumscription.
Trapezioidea is a superfamily of crabs. Its members live symbiotically with corals and have a fossil record stretching back to the Eocene.
Tetrasquillidae is a family of mantis shrimp containing ten genera:
Hepatella amica is a genus of crabs in the family Aethridae. It is the only species in the genus Hepatella.
Paraetisus globulus is a species of crab in the family Xanthidae, the only species in the genus Paraetisus. It was described in 1933 by Charles Melbourne Ward.
Rata is a genus of crabs in the family Xanthidae, containing the following species:
Calvactaea tumida is a species of crabs in the family Xanthidae, the only species in the genus Calvactaea.
Neolithodes is a genus of king crabs in the subfamily Lithodinae. They are found in all major oceans, both in high and low latitudes. Although there are records from water as shallow as 70 m (230 ft) in cold regions, most records are much deeper, typically 700–2,000 m (2,300–6,600 ft), with the deepest confirmed at 5,238 m (17,185 ft). They are fairly large to large crabs that typically are reddish in color and spiny, although the size of these spines varies depending on species.
Nephropsis is a genus of lobsters containing 18 extant species:
Chirostyloidea is an anomuran superfamily with squat lobster-like representatives. It comprises the three families Chirostylidae, Eumunididae and Kiwaidae. Although representatives of Chirostyloidea are superficially similar to galatheoid squat lobsters, they are more closely related to Lomisoidea and Aegloidea together forming the clade Australopoda. No fossils can be confidently assigned to the Chirostyloidea, although Pristinaspina may belong either in the family Kiwaidae or Chirostylidae.
Acanthosquilla is a genus of stomatopod crustacean. The American carcinologist Raymond B. Manning named and first circumscribed the genus in 1963. As of 2018, the World Register of Marine Species recognizes the following eight species:
Shane Timothy Ahyong is an Australian zoologist specialising in marine invertebrates. Since 2010 he has worked as a senior principal research scientist at the Australian Museum. Following his Ph.D. he worked as a post-doctoral researcher at the Australian Museum and in 2006 left to manage Marine Biodiversity and Biosecurity Group and Marine Invasives Taxonomic Service within the National Institute of Water and Atmospheric Research in New Zealand.
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