| Eucrate | |
|---|---|
 | |
| Eucrate crenata | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Malacostraca |
| Order: | Decapoda |
| Infraorder: | Brachyura |
| Family: | Euryplacidae |
| Genus: | Eucrate de Haan, 1835 [1] |
| Type species | |
| Eucrate crenata de Haan, 1835 | |
Eucrate is a genus of crabs of the family Euryplacidae.
There are currently 11 accepted species in the genus Eucrate: [1]
The Decapoda or decapods are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crayfish, crabs, lobsters, prawns, and shrimp. Most decapods are scavengers. The order is estimated to contain nearly 15,000 species in around 2,700 genera, with around 3,300 fossil species. Nearly half of these species are crabs, with the shrimp and Anomura including hermit crabs, porcelain crabs, squat lobsters making up the bulk of the remainder. The earliest fossil decapod is the Devonian Palaeopalaemon.
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.
Sand bubbler crabs are crabs of the genera Scopimera and Dotilla in the family Dotillidae. They are small crabs that live on sandy beaches in the tropical Indo-Pacific. They feed by filtering sand through their mouthparts, leaving behind balls of sand that are disintegrated by the incoming high tide.
Macrophthalmus is a genus of crabs which are widespread across the Indo-Pacific. It contains the following species :
Hexapus is a genus of crabs in the family Hexapodidae. It contains only three extant species found in the Indo-West Pacific. They inhabit the intertidal and subtidal areas of shorelines.
Pilumnoidea is a superfamily of crabs, whose members were previously included in the Xanthoidea. The three families are unified by the free articulation of all the segments of the male crab's abdomen and by the form of the gonopods. The earliest fossils assigned to this group are of Eocene age.
Actumnus is a genus of crabs in the family Pilumnidae. Alongside the 28 extant species, it has a fossil record extending back into the Miocene.
The Dotillidae are a family of crabs with 59 species, nearly half of which are in the genus Ilyoplax. The two genera Scopimera and Dotilla are collectively the sand bubbler crabs, which leave conspicuous collections of sand pellets on sandy beaches across the tropical and subtropical Indo-Pacific.
Hemigrapsus is a genus of varunid crabs comprising thirteen species native almost exclusively in the Pacific Ocean, but two have been introduced to the North Atlantic region.
Palapedia is a genus of crabs in the family Xanthidae, containing the following species:
Liagore is a genus of crabs in the family Xanthidae, native to Australia, containing the following species:
Atergatis is a genus of crabs in the family Xanthidae, containing the following species:
Hypothalassia is a genus of temperate and tropical deep sea crabs that are found in both Australian and Japanese waters. It comprises two species: Hypothalassia acerba Koh & Ng, 2000, and Hypothalassia armata, both known as the champagne crab.
Helice is a genus of crabs, containing four species:
Guinusia, is a genus of crabs containing the following species:
Euryplacidae is a family of crabs in the superfamily Goneplacoidea which consists of 14 existing genera and 31 existing species and 8 fossil genera and 15 fossil species.
Eucrate crenata, the blunt-spined euryplacid crab, is a species of Indo-Pacific crab from the family Euryplacidae. It has invaded the Mediterranean Sea from the Red Sea by Lessepsian migration through the Suez Canal.
Polyascus is a genus of barnacles in superorder Rhizocephala. It was circumscribed in 2003 by Henrik Glenner, Jørgen Lützen, and Tohru Takahashi. They included three species, all transferred from Sacculina. The generic name polyascus refers to the typical presence of multiple external sac-like female bodies, known as externae. In Polyascus species, these originate from asexual reproduction.
Halimede is a genus of crabs in the family Galenidae, with species occurring in Australia, Africa, and China.
Leptomithrax is a genus of crabs in the family Majidae. They have been on Earth for 37.2 million years.