Leucothoe spinicarpa grows to around 12 mm in length, has a green, pink or white laterally compressed body and red eyes. In Leucothoe spinicarpa the large gnathopod 1 is carpochelate (the chelae articulate at the carpus not with the propodus, as in crabs) and the larger gnathopod 2 is subchelate but with a very protuberant carpus.
Recorded distribution in Britain and Ireland
Expected to be found around all coasts of Britain and Ireland.
Cosmopolitan - found in all oceans from the tropics to polar regions.
This species is found in the intertidal and shallow subtidal. Leucothoid amphipods are often associated with other organisms. Leucothoe spinicarpa is often found in the cavities of sponges and ascidians, as well as amongst the holdfasts of seaweeds.
Gnathopod 1 large, carpochelate.
Gnathopod 2 larger than first, subchelate.
Male gnathopod 2 palm crenulated.
Epimeral plate 3 almost rectangular, lacking distinct tooth.
Leucothoe spinicarpa is believed to belong to a cosmopolitan species complex, meaning that possibly there are numerous species erroneously ascribed to Leucothoe spinicarpa.
Hosie, A.M. 2008. Leucothoe spinicarpa An amphipod. In Tyler-Walters H. and Hiscock K. (eds) Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 26-09-2018]. Available from: https://www.marlin.ac.uk/species/detail/2212
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