Periclimenes

Periclimenes, commonly known as glass shrimp or cleaner shrimp, is a symbiotic and often commensalistic genus of translucent 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.

== Taxonomy == This genus has undergone several changes in classification based on recent molecular studies comparing species within the genus. However, most recent molecular studies have only involved approximately 20% of the known species likely to belong to the genus. Additionally, most of the molecular studies performed involved Indo-Pacific species of Periclimenes and did not include presumed Periclimenes found in the Atlantic Ocean. Periclimenes has previously been suggested as being a polyphyletic taxa, and has already undergone splits into several new genera. It is likely the genus will undergo changes in classification in coming years with further research.