Lysmata is a genus of shrimp in the infraorder Caridea, the caridean shrimp. The genus belongs to the family Lysmatidae.[3]Lysmata are popular ornamental shrimp in the marine aquarium trade for their bright color patterns, interesting behaviors, and ability to control certain aquarium pests[3] such as sea anemones of the genus Aiptasia.[4] They are known to command high prices on the pet market.[5]
The genus is informally divided into two main categories. Some species are cleaner shrimp which "clean" parasites and other material from fish, live in pairs, and are brightly colored, often in contrasting reds and yellows with white antennae. Other species are the "peppermint shrimp", which have semi-translucent, red-banded bodies, and live in large groups. Some peppermint shrimp perform cleaning behaviors, but less actively than do the cleaner shrimp.[4]
The genus has been studied with interest due to its unusual sexual system, protandric simultaneous hermaphroditism.[3] While some other taxa of shrimp undergo sequential hermaphroditism, they have only been observed changing from male to female. In Lysmata, males become true hermaphrodites instead of females.[6] So far, every species studied has been confirmed to have this sexual system.[7] During their "female phase" they actually have functioning male and female tissues in their gonads and produce both types of gamete. When paired, they take turns fertilizing each other's eggs.[6]
Lysmata occur in the tropics and in warmer temperate waters. They usually live on rock and coral reefs, in shallow and deeper areas. Some live in sponges.[7]
^"Lysmata Risso, 1816". Integrated Taxonomic Information System. Retrieved October 7, 2013.
^J. Antonio Baeza (2010). "Molecular systematics of peppermint and cleaner shrimps: phylogeny and taxonomy of the genera Lysmata and Exhippolysmata (Crustacea: Caridea: Hippolytidae)". Zoological Journal of the Linnean Society. 160 (2): 254–265. doi:10.1111/j.1096-3642.2009.00605.x.
^ abcAndrew L. Rhyne, Ricardo Calado & Antonina Dos Santos (2012). "Lysmata jundalini, a new peppermint shrimp (Decapoda, Caridea, Hippolytidae) from the Western Atlantic" (PDF). Zootaxa. 3579: 71–79.
^ abAndrew L. Rhyne & Junda Lin (2006). "A western Atlantic peppermint shrimp complex: redescription of Lysmata wurdemanni, description of four new species, and remarks on Lysmata rathbunae (Crustacea: Decapoda: Hippolytidae)" (PDF). Bulletin of Marine Science. 79 (1): 165–204.
^Ricardo Calado; Cátia Bartilotti; Luís Narciso; Antonina Dos Santos (2004). "Redescription of the larval stages of Lysmata seticaudata (Risso, 1816) (Crustacea, Decapoda, Hippolytidae) reared under laboratory conditions". Journal of Plankton Research. 26 (7): 737–752. doi:10.1093/plankt/fbh072.
^ abJ. Antonio Baeza; Christoph D. Schubart; Petra Zillner; Soledad Fuents; Raymond T. Bauer (2009). "Molecular phylogeny of shrimps from the genus Lysmata (Caridea: Hippolytidae): the evolutionary origins of protandric simultaneous hermaphroditism and social monogamy" (PDF). Biological Journal of the Linnean Society. 96 (2): 415–424. doi:10.1111/j.1095-8312.2008.01133.x.
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Will eat starfish Moderate? Will only eat starfish. Peppermint shrimp Lysmata wurdemanni complex Yes Easy some people think they eat coral but only eat...
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