| Persephona mediterranea | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Leucosiidae |
| Genus: | Persephona |
| Species: | P. mediterranea |
| Binomial name | |
| Persephona mediterranea (J. F. W. Herbst, 1794) | |
Persephona mediterranea, the mottled purse crab, is a species of true crab in the family Leucosiidae. [1] [2] It is found in the western Atlantic Ocean. [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.
Hermit crabs are anomuran decapod crustaceans of the superfamily Paguroidea that have adapted to occupy empty scavenged mollusc shells to protect their fragile exoskeletons. There are over 800 species of hermit crab, most of which possess an asymmetric abdomen concealed by a snug-fitting shell. Hermit crabs' soft (non-calcified) abdominal exoskeleton means they must occupy shelter produced by other organisms or risk being defenseless.
The Decapoda or decapods are an order of crustaceans within the class Malacostraca, and includes crabs, lobsters, crayfish, shrimp, and prawns. Most decapods are scavengers. The order is estimated to contain nearly 15,000 extant 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 fossils of the group date to the Devonian.
Anomura is a group of decapod crustaceans, including hermit crabs and others. Although the names of many anomurans include the word crab, all true crabs are in the sister group to the Anomura, the Brachyura.
Eucarida is a superorder of the Malacostraca, a class of the crustacean subphylum, comprising the decapods, krill, and Angustidontida. They are characterised by having the carapace fused to all thoracic segments, and by the possession of stalked eyes.
The hairy stone crab is a crab-like anomuran crustacean that lives in the littoral zone of southern Australia from Bunbury, Western Australia, to the Bass Strait. It is the only species in the family Lomisidae. It is 1.5–2.5 cm (0.6–1.0 in) wide, slow-moving, and covered in brown hair which camouflages it against the rocks upon which it lives.
A shrimp is a crustacean with an elongated body and a primarily swimming mode of locomotion – typically belonging to the Caridea or Dendrobranchiata of the order Decapoda, although some crustaceans outside of this order are also referred to as "shrimp".
Crustaceans are a group of arthropods that are a part of the subphylum Crustacea, a large, diverse group of mainly aquatic arthropods including decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, opossum shrimps, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. The three classes Cephalocarida, Branchiopoda and Remipedia are more closely related to the hexapods than they are to any of the other crustaceans.
Moreiradromia antillensis is a species of decapods in the family sponge crab. This species lives in the Western and central Atlantic Ocean.
Persephona is a genus of true crabs in the family Leucosiidae. There are about 5 described species in Persephona.
Loxorhynchus crispatus, known generally as the masking crab or moss crab, is a species of true crab in the family Epialtidae. It is found in the East Pacific.
Taliepus nuttallii, known generally as the southern kelp crab or globose kelp crab, is a species of true crab in the family Epialtidae. It is found in the East Pacific.
Taliepus is a genus of kelp and spider crabs in the family Epialtidae. There are at least three described species in the genus Taliepus.
Pagurus annulipes, the brown banded hermit, is a species of hermit crab in the family Paguridae. It is found in the western Atlantic Ocean. It is the only hermit crab with banded legs on the coast of the NE United States.
Armases is a genus of true crabs in the family Sesarmidae. There are about 13 described species in Armases.
Polyonyx gibbesi, the eastern tube crab, is a species of porcelain crab in the family Porcellanidae. It is found in the western Atlantic Ocean.
Arenaeus is a genus of swimming crabs in the family Portunidae. There are at least two described species in Arenaeus.
Emerita talpoida, known generally as the Atlantic mole crab or Atlantic sand crab, is a species of mole crab in the family Hippidae. It is found in the western Atlantic Ocean and Mexico along the shoreline.
Dissodactylus mellitae, the sand-dollar pea crab, is a species of pea crab in the family Pinnotheridae. It is found in the western Atlantic Ocean.
Neopontonides beaufortensis is a crustacean species in the family Palaemonidae first described by Lancelot Alexander Borradaile in 1920.
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