Liljeborgia

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Liljeborgia
Systematics
Order : Flea crabs (Amphipoda)
Subordination : Gammaridea
Superfamily : Liljeborgioidea
Family : Liljeborgiidae
Subfamily : Liljeborgiinae
Genre : Liljeborgia
Scientific name of the  subfamily
Liljeborgiinae
Stebbing , 1899
Scientific name of the  genus
Liljeborgia
Bate , 1862

Liljeborgia is a genus in the family Liljeborgiidae in the order of the amphipods .

features

The species of the genus Liljeborgia are representatives of the macrobenthos , that is, they are more than a millimeter large members of the marine communities on the sea floor. Outwardly, they are very similar to the members of the Gammaridae family to which they have long been counted. Your physique is elongated and flattened on the sides. However, they do not have any calcium deposits in their chitin shell .

To differentiate the species, a formula is used, among other things, that describes the number of backward-pointing teeth on the back of the individual segments of the abdomen . Liljeborgia dubia , for example, has the formula 5–5–1–1–1 on the segments (from the first pleonite to the back towards the telson ).

distribution

The species of the genus Liljeborgia are widespread inhabitants of the sea floor.

Way of life

Little is known about the way of life of the genus Liljeborgia . Most species seem to live as epifauna on the surfaces of loose sediments or on other organisms ( corals , plants). They feed on detritus there . Liljeborgia aequabilis is always found in the company of hermit crabs on the coasts of Eastern and Southern Australia. Liljeborgia joergpeteri lives on coral sand in the Great Barrier Reef .

Systematics

External system

Liljeborgia is the only genus of the subfamily Liljeborgiinae. Within the family Liljeborgiidae there is another subfamily, the Idunellinae with the only genus Idunella . As early as 1894, Georg Ossian Sars proposed to combine the two genres in a separate family, but this was only implemented in 1899 by Thomas Roscoe Stebbing .

species

As of April 1, 2014

Individual evidence

  1. ↑ P. Enequist: Studies on the soft-bottom amphipods of the Skagerrak. Zoologiska Bidrag fran Uppsala, 28, 299-492, 1949
  2. ^ W. Vader: Liljeborgia species (Amphipoda, Liljeborgiidae) as associates of hermit crabs. Polskie Archiwum Hydrobiologii, 42, 4, pp. 517-52, 1995
  3. ↑ Charles Oliver Coleman: Liljeborgiidae. In: Jerry K. Lowry & AA Myers (Eds.): Benthic Amphipoda (Crustacea: Peracarida) of the Great Barrier Reef, Australia. Zootaxa, 2260, pp. 1-930, 2009, pp. 556-560

literature

  • D. Bellan-Santini, MJ Costello: Amphipoda . In: MJ Costello et al. (Ed.): European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50, pp. 295-308, Paris 2001 ISBN 2-85653-538-0

Web links

  • T. Horton & Jerry Lowry: Liljeborgia Bates, 1894 . In: T. Horton, J. Lowry & C. De Broyer: World Amphipoda Database. World Register of Marine Species (WoRMS), 2013-2014, accessed April 1, 2014