Homarus is a genus of lobsters, which include the common and commercially significant species Homarus americanus and Homarus gammarus. The Cape lobster, which was formerly in this genus as H. capensis, was moved in 1995 to the new genus Homarinus.
Cherax is the most widespread genus of fully aquatic crayfish in the Southern Hemisphere. Together with Euastacus, it is also the largest crayfish genus in the Southern Hemisphere. Its members may be found in lakes, rivers, and streams across most of Australia and New Guinea. In Australia, the many species of Cherax are commonly known as yabbies. The most common and widely distributed species in Australia is the common yabby. It is generally found in lowland rivers and streams, lakes, swamps, and impoundments at low to medium altitude, largely within the Murray–Darling Basin. Common yabbies are found in many ephemeral waterways, and can survive dry conditions for long periods of time by aestivating in burrows sunk deep into muddy creek and swamp beds. In New Guinea, Cherax crayfish are found widely in rivers, streams, and lakes, with a particularly high diversity in the Paniai Lakes. New Guinea is also home to the only known cave-living crayfish in the Southern Hemisphere, C. acherontis. Some species are very colourful and sometimes seen in the freshwater aquarium trade.
Atyidae is a family of shrimp, present in all tropical and most temperate waters of the world. Adults of this family are almost always confined to fresh water. This is the only family in the superfamily Atyoidea.
Lipke Bijdeley Holthuis was a Dutch carcinologist, considered one of the "undisputed greats" of carcinology, and "the greatest carcinologist of our time".
The velvet crab, or alternately velvet swimming crab, devil crab, “fighter crab”, or lady crab,Necora puber, is a species of crab. It is the largest of the swimming crab family (Portunidae) found in British coastal waters. It has a carapace width of up to 100 millimetres (3.9 in), and is the only species in the genus Necora. Its body is coated with short hairs, giving the animal a velvety texture, hence the common name. It is one of the major crab species for United Kingdom fisheries, in spite of its relatively small size.
Palaemonetes, its common names include glass shrimp, ghost shrimp, feeder shrimp, is a genus of caridean shrimp comprising a geographically diverse group of fresh water, brackish and marine crustaceans. Conventionally, Palaemonetes included the following species:
Palaemon is a genus of caridean shrimp of the family Palaemonidae. The conventional circumscription of the genus Palaemon is probably paraphyletic. Molecular data suggest that Palaemonetes, as well as the genera Exopalaemon and Couteriella, are nested within Palaemon. Phylogenetic affinities in these groups correspond better with geographical origin than conventional genus assignments.
Jasus is a genus of spiny lobsters which live in the oceans of the Southern Hemisphere. They have two distinct "horns" projecting from the front of the carapace, but lack the stridulating organs present in almost all other genera of spiny lobsters. Like all spiny lobsters, they lack claws, and have long stout antennae which are quite flexible.
Scyllarides is a genus of slipper lobsters.
Scyllarus is a genus of slipper lobsters from the Atlantic Ocean, including the Mediterranean and Caribbean. Until 2002, the genus included far more species, but these are now placed in other genera. The following species remain in Scyllarus:
Macrobrachium is a genus of freshwater prawns or shrimps characterised by the extreme enlargement of the second pair of pereiopods, at least in the male.
Galearctus avulsus is a species of slipper lobster that lives around New Caledonia. It was described in 2011, having previously been included in Galearctus kitanovirosus. It differs from the other species of the genus Galearctus most noticeably in the shape of a groove on the sternum.
Ibacus ciliatus is a species of slipper lobster from the north-west Pacific Ocean.
Jasus paulensis, also commonly known as the St Paul rock lobster, is a species of spiny lobster found in the waters around Saint Paul Island in the southern Indian Ocean and around Tristan da Cunha in the southern Atlantic Ocean. At one time the rock lobsters on Tristan da Cunha were believed to be a separate species known as the Tristan rock lobster, but the use of mitochondrial DNA sequencing has shown them to be identical. Some authorities, for example the International Union for Conservation of Nature, retain them as separate species. The Tristan rock lobster features on the coat of arms and the flag of Tristan da Cunha.
Automate branchialis is a species of pistol shrimp from the family Alpheidae which was thought to be a Lessepsian migrant, i.e. a species which had colonised the Mediterranean from the Red Sea via the Suez Canal. This was because before its description in 1958 all the species of the genus Automate were found in the Indo-Pacific region. A. branchialis has not been recorded in the Indo-Pacific region and has been found to be widespread in the Mediterranean so it is now considered to be a Mediterranean endemic.
Periclimenes, commonly known as glass shrimp or cleaner shrimp, is a commensal and often symbiotic genus of semi-transparent shrimp within the family Palaemonidae. Species of this large genus feature a wide variety of coloration and patterns, widespread distribution throughout much of the world's tropical oceans, and are often sought out for aquarium trade.
Leptocarpus is a genus of shrimps belonging to the family Palaemonidae.
Creaseria is a genus of shrimps belonging to the family Palaemonidae.
Cryphiops is a genus of shrimps belonging to the family Palaemonidae.
