Leptograpsodes

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Burrowing shore crab
Burrowing-shore-crab-leptograpsodes-octodentatus-389750-large.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Brachyura
Family: Leptograpsodidae
Guinot, Ng & Rodríguez Moreno, 2018 [1]
Genus: Leptograpsodes
Montgomery, 1931 [2]
Species:
L. octodentatus
Binomial name
Leptograpsodes octodentatus
Synonyms [3]
List
    • Cyclograpsus octodentatusH. Milne Edwards, 1837
    • Grapsus inornatusHess, 1865
    • Heterograpsus octodentatus(H. Milne Edwards, 1837)
    • Leptograpsodes webhaysiMontgomery, 1931

Leptograpsodes octodentatus, known as the burrowing shore crab, [4] is a species of crab in the superfamily Grapsoidea, [5] It is the only species in the genus Leptograpsodes, [2] and the family Leptograpsodidae. [1]

Contents

Description

It is up to 60 to 70 mm (2.4 to 2.8 in) across, [5] [6] with an oval shaped carapace. [5] The species epithet octodentatus refers to four pairs of teeth (including the orbital angle) on the sides of the carapace, [4] although the fourth is very small. [7] Some references list one tooth only. [5] Color varies with the carapace described as grey and yellow, mottled green and brown, purple and yellow. [6] It can produce sound by stridulation. [6]

Sexual dimorphism

Adult males have large claws with curved fingers, with irregular teeth, whereas in females and juveniles the fingers are straight, with regular teeth. [4] These differences caused them to originally be given multiple species names.[ citation needed ]

Environment

It is typically found on southern Australian seashores in Victoria, Tasmania, South Australia and Western Australia (north to the Abrolhos islands), [4] [6] and tends to live near fresh or brackish water, [4] but never far from the shore. [4] It lives in shallow burrows, above the high tide line, and comes out to feed at night, on rotting vegetation and animal debris. [4] Spawning is in summer from December to January. [4]

References

  1. 1 2 WoRMS. "Leptograpsodidae Guinot, Ng & Rodriguez Moreno, 2018". World Register of Marine Species . Retrieved 2024-11-26.
  2. 1 2 WoRMS. "Leptograpsodes Montgomery, 1931". World Register of Marine Species . Retrieved 2024-11-26.
  3. 1 2 WoRMS. "Leptograpsodes octodentatus (H. Milne Edwards, 1837)". World Register of Marine Species . Retrieved 2024-11-26.
  4. 1 2 3 4 5 6 7 8 George, R. W. (1962-09-15). "The Burrowing Shore Crab of Southern Australiia". Australian Natural History. XIV (3): 71–74.
  5. 1 2 3 4 Taylor, J.; Poore, G. (2010). "Leptograpsodes octodentatus Burrowing Shore Crab in Museums Victoria Collections". Museums Victoria. Retrieved 2022-11-04.
  6. 1 2 3 4 Guinot, D; Ng, N. K. G.; Rodriguez Moreno, P. A. (2018-12-21). "Review of grapsoid families for the establishment of a new family for Leptograpsodes Montgomery, 1931, and a new genus of Gecarcinidae H. Milne Edwards, 1837 (Crustacea, Decapoda,Brachyura,Grapsoidea Macleay, 1838)". Zoosystema. 40 (26): 545–604. doi:10.5252/zoosystema2018v40a26.
  7. ↑ Griffin, D. J. G. (1969-04-18). "Notes on the taxonomy and zoogeography of the Tasmanian grapsid and ocypodid crabs (Crustacea, Brachyura)". Records of the Australian Museum. 27 (18): 323–347]. doi:10.3853/j.0067-1975.27.1969.452.


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