| Heteractaea | |
|---|---|
 | |
| Heteractaea ceratopus | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Xanthidae |
| Subfamily: | Actaeinae |
| Genus: | Heteractaea Lockington, 1877 |
Heteractaea is a genus of crabs in the family Xanthidae, containing the following species: [1] [2]
Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting tail-like abdomen, usually hidden entirely under the thorax. They live in all the world's oceans, in freshwater, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers on each arm. They first appeared during the Jurassic period, around 200 million years ago.
Xanthidae is a family of crabs known as gorilla crabs, mud crabs, pebble crabs or rubble crabs. Xanthid crabs are often brightly coloured and are highly poisonous, containing toxins which are not destroyed by cooking and for which no antidote is known. The toxins are similar to the tetrodotoxin and saxitoxin produced by puffer fish, and may be produced by bacteria in the genus Vibrio living in symbiosis with the crabs, mostly V. alginolyticus and V. parahaemolyticus.
The Tasmanian giant crab, also known as the giant deepwater crab, giant southern crab, queen crab, or bullcrab, is a very large species of crab that resides on rocky and muddy bottoms in the oceans off Southern Australia. It is the only extant species in the genus Pseudocarcinus.
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.
Lybia is a genus of small crabs in the family Xanthidae. Their common names include boxer crabs, boxing crabs and pom-pom crabs. They are notable for their mutualism with sea anemones, which they hold in their claws for defense. In return, the anemones get carried around, which may enable them to capture more food particles with their tentacles. Boxer crabs use at least three species of anemones, including Bundeopsis spp. and Triactis producta. The bonding with the anemone is not needed for survival, however, and boxer crabs have frequently been known to live without them, sometimes substituting other organisms such as sponges and corals for the sea anemones.
Actaeodes is a genus of crabs in the family Xanthidae, containing the following species:
Epiactaea is a genus of crabs in the family Xanthidae, containing the following species:
Novactaea is a genus of crabs in the family Xanthidae, containing the following species:
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.
Euxanthus is a genus of crabs in the family Xanthidae containing the following species:
Allactaea lithostrota is a species of crabs in the family Xanthidae, the only species in the genus Allactaea.
Epiactaeodes is a genus of crabs in the family Xanthidae, containing the following species:
Lobiactaea lobipes is a species of crabs in the family Xanthidae, the only species in the genus Lobiactaea.
Meractaea is a genus of crabs in the family Xanthidae, containing the following species:
Odhnea is a genus of crabs in the family Xanthidae, containing the following species:
Actiomera is a genus of crabs in the family Xanthidae, containing the following species:
Cycloxanthops is a genus of crabs in the family Xanthidae, containing the following species:
Neoxanthops is a genus of crabs in the family Xanthidae, containing the following species:
Xanthias is a genus of crabs in the family Xanthidae, containing two exclusively fossil species and the following extant species:
Calvactaea tumida is a species of crabs in the family Xanthidae, the only species in the genus Calvactaea.
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