''Periclimenaeus'' is a genus of

decapod The Decapoda or decapods, from Ancient Greek δεκάς (''dekás''), meaning "ten", and πούς (''poús''), meaning "foot", is a large order of crustaceans within the class Malacostraca, and includes crabs, lobsters, crayfish, shrimp, and p ...

crustaceans Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of Arthropod, arthropods that are traditionally a part of the subphylum Crustacea (), a large, diverse group of mainly aquat ...

of the family

Palaemonidae Palaemonidae is a family of shrimp in the order Decapoda. Many species are carnivores that eat small invertebrates, and can be found in any aquatic habitat except the deep sea. One significant genus is '' Macrobrachium'', which contains commerci ...

which is part of the

infraorder Order () is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classific ...

Caridea The Caridea, commonly known as caridean shrimp or true shrimp, from the Greek word καρίς, καρίδος (karís, karídos, “shrimp”), are an infraorder of shrimp within the order Decapoda. This infraorder contains all species of true sh ...

. The genus was named by the English carcinologist

Lancelot Alexander Borradaile Lancelot Alexander Borradaile (26 September 1872 – 20 October 1945) was an English zoologist, noted for his work on crustaceans and his books ''The Invertebrata'' and ''Manual of Elementary Zoology''. Legacy Borradaile may be best known for hi ...

in 1915. He set out the distinguishing features of the genus as: ''Pericimaenaeus robustus'' is known only from the type specimen which was collected off

Amirante Islands The Amirante Islands (''Les Amirantes'') are a group of coral islands and atolls that belong to the Outer Islands of the Seychelles. They stretch about 155 km from the African Banks (African Islands) in the north to Desnœufs (Isle des N ...

by the Western Indian Ocean Expeditions of Prof. J. Stanley Gardiner and described in 1915 and again in 1917 by Borradaile, it was re-described by Dr A.J. "Sandy" Bruce of the

Queensland Museum The Queensland Museum Kurilpa is the state museum of Queensland, funded by the government, and dedicated to natural history, cultural heritage, science and human achievement. The museum currently operates from its headquarters and general museu ...

in 2005.

Biological notes

''Periclimenaeus'' consists of number of species of small shrimps classified in the subfamily Pontoniinae. They occur mainly in tropical seas, especially in and around coral reefs. ''Periclimanaeus'' shrimps live in association with a variety of hosts, mostly

sponge Sponges or sea sponges are primarily marine invertebrates of the animal phylum Porifera (; meaning 'pore bearer'), a basal clade and a sister taxon of the diploblasts. They are sessile filter feeders that are bound to the seabed, and a ...

s and

ascidian Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer test or "tunic" made of the polysaccharid ...

tunicate Tunicates are marine invertebrates belonging to the subphylum Tunicata ( ). This grouping is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords (including vertebrates). The subphylum was at one time ...

s, where they normally live in the hosts' internal cavities as pairs formed of a male and a female. Characteristics of the genus include the presence of grossly unequal chelae on the second pair of walking legs, the larger of which has a conspicuous molar process on the seventh and terminal segment of the leg, which sits opposite a depression on the fixed finger, this is used to produce sound, a feature which is convergent with similar structures in the related genus '' Coralliocaris'' and in some unrelated genera of snapping shrimps from the family

Alpheidae Alpheidae (also known as the snapping shrimp, pistol shrimp or alpheid shrimp) is a family (biology), family within the shrimp infraorder Caridea characterized by having asymmetrical claws, the larger of which is typically capable of producing a ...

Species

''Periclimenaeus'' is the genus in the Palaemonidae with the second highest number of species with their distribution centred on the Indo-West Pacific region where there are 60 or so species with a further 14 identified so far in the Atlantic and eastern Pacific. The first species to be described was described from specimens caught in the

Torres Strait The Torres Strait (), also known as Zenadh Kes ( Kalaw Lagaw Ya#Phonology 2, �zen̪ad̪ kes, is a strait between Australia and the Melanesian island of New Guinea. It is wide at its narrowest extent. To the south is Cape York Peninsula, ...

by HMS ''Alert'' during 1881-82. These specimens were described by

Edward J. Miers Edward John Miers FZS FLS (1851–15 October 1930) was a British zoologist and curator of the crustacean collection at the Natural History Museum in London. He contributed to the scientific reports from the ''Challenger'' expedition of 1872–1 ...

as ''Coralliocaris tridendatus'', this was then assigned to ''Periclimenaeus'' as ''P. tridentatus'' after Borradaile named the genus. The following species are currently recognised: * '' Periclimenaeus ancylodactylus'' Bruce, 2014 * '' Periclimenaeus arabicus'' (Calman, 1939) * '' Periclimenaeus ardeae'' Bruce, 1970 * '' Periclimenaeus arthrodactylus'' Holthuis, 1952 * '' Periclimenaeus ascidiarum'' Holthuis, 1951 * '' Periclimenaeus atlanticus'' (Rathbun, 1901) * '' Periclimenaeus aurae'' dos Santos, Calado & Araújo, 2008 * '' Periclimenaeus aurantiacus'' Bruce, 2014 * '' Periclimenaeus bermudensis'' (Armstrong, 1940) * '' Periclimenaeus bidentatus'' Bruce, 1970 * '' Periclimenaeus bouvieri'' (Nobili, 1904) * '' Periclimenaeus bredini'' Chace, 1972 * '' Periclimenaeus brucei'' Cardoso & Young, 2007 * '' Periclimenaeus calmani'' Bruce, 2012 * '' Periclimenaeus caraibicus'' Holthuis, 1951 * '' Periclimenaeus chacei'' Abele, 1971 * '' Periclimenaeus colemani'' Bruce, 2014 * '' Periclimenaeus colodactylus'' Bruce, 1996 * '' Periclimenaeus crassipes'' (Calman, 1939) * '' Periclimenaeus creefi'' Bruce, 2010 * '' Periclimenaeus crosnieri'' Cardoso & Young, 2007 * '' Periclimenaeus dactylodon'' Bruce, 2012 * '' Periclimenaeus denticulodigitus'' Bruce, 2014 * '' Periclimenaeus devaneyi'' Bruce, 2010 * '' Periclimenaeus diplosomatis'' Bruce, 1980 * '' Periclimenaeus djiboutensis'' Bruce, 1970 * '' Periclimenaeus echinimanus'' Ďuriš, Horka & Al-Horani, 2011 * '' Periclimenaeus edmondsoni'' Bruce, 2013 * '' Periclimenaeus fawatu'' Bruce, 2006 * '' Periclimenaeus forcipulatus'' Bruce, 2014 * '' Periclimenaeus garthi'' Bruce, 1976 * '' Periclimenaeus gorgonidarum'' (Balss, 1913) * '' Periclimenaeus hancocki'' Holthuis, 1951 * '' Periclimenaeus hebedactylus'' Bruce, 1970 * '' Periclimenaeus hecate'' (Nobili, 1904) * '' Periclimenaeus heronensis'' Bruce, 2010 * '' Periclimenaeus holthuisi'' Bruce, 1969 * '' Periclimenaeus jeancharcoti'' Bruce, 1991 * '' Periclimenaeus kottae'' Bruce, 2005 * '' Periclimenaeus leptodactylus'' Fujino & Miyake, 1968 * '' Periclimenaeus lobiferus'' Bruce, 1978 * '' Periclimenaeus manihinei'' Bruce, 1976 * '' Periclimenaeus marini'' Bruce, 2013 * '' Periclimenaeus matherae'' Bruce, 2005 * '' Periclimenaeus maxillulidens'' (Schmitt, 1936) * '' Periclimenaeus minutus'' Holthuis, 1952 * '' Periclimenaeus mortenseni'' Bruce, 1993 * '' Periclimenaeus myora'' Bruce, 1998 * '' Periclimenaeus nielbrucei'' Bruce, 2006 * '' Periclimenaeus nobilii'' Bruce, 1975 * ''

Periclimenaeus nufu ''Periclimenaeus'' is a genus of decapod crustaceans of the family Palaemonidae which is part of the infraorder Caridea. The genus was named by the English carcinologist Lancelot Alexander Borradaile in 1915. He set out the distinguishing featur ...

References

{{Taxonbar, from=Q4482956 Palaemonoidea