Periclimenes imperator

Periclimenes imperator, known as the emperor shrimp, is a species of shrimp with a wide distribution across the Indo-Pacific.^[1] It lives commensally on a number of hosts, including the sea slug Hexabranchus.^[2] A. J. Bruce first described it in 1967 based on eight specimens ranging from 4 millimetres (0.16 in) to 7.6 millimetres (0.30 in).^[3] Periclimenes Imperator is now considered a junior synonym of Zenopontonia Rex.^[1]

Periclimenes imperator
Periclimenes imperator on the sea cucumber Bohadschia argus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Infraorder:	Caridea
Family:	Palaemonidae
Genus:	Periclimenes
Species:	P. imperator
Binomial name
Periclimenes imperator Bruce, 1967

Emperor Shrimp (Periclimenes imperator) with a Ceratosoma Tenue nudibranch as its commensal host

Periclimenes imperator on unidentified sea cucumber

Periclimenes imperator lives in water up to 45 metres (148 ft) in depth,^[4] and can grow to a length of 1.9 centimetres (0.75 in).^[5]