Macrophthalmus pacificus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Brachyura
Family: Macrophthalmidae
Genus: Macrophthalmus
Species:
M. pacificus
Binomial name
Macrophthalmus pacificus
Dana, 1851
Synonyms[1]
  • Macrophthalmus bicarinatus Heller, 1862

Macrophthalmus pacificus is a species of sentinel crab found widely across the Indo-West Pacific Ocean, including India, Japan, Malaysia, New Guinea, Solomon Islands, and northern Australia.[2]

In Australia it is found in the north from northern New South Wales to around Exmouth in Western Australia.[1] M. pacificus lives in mud in tidal zones of river mouths' adjacent mangrove forests in low tide areas. The claws of adult males are sky blue.[3] It is often found feeding in shallow still water, and in soft mud.[4]: 2  The upper claw of males has a tooth on the upper claw (dactyl). Like other Macrophthalmus species, the claws of the male are larger than those of the female.[3] The carapace is smooth and shiny, up to around 25 mm across.[5]

A synonym of Macrophthalmus pacificus is Macrophthalmus bicarinatus.[1]

References

  1. 1 2 3 "Species Macrophthalmus (Mareotis) pacificus Dana, 1851". Australian Faunal Directory. Australian Government Department of Climate Change, Energy, the Environment and Water. 5 June 2012. Retrieved 31 October 2022.
  2. ↑ "Macrophthalmus pacificus Dana, 1851". Global Biodiversity Information Facility. Retrieved 31 October 2022.
  3. 1 2 Peter J. F. Davie (17 February 2012). "A review of Macrophthalmus sensu lato (Crustacea: Decapoda: Macrophthalmidae) from Australia, including two new species and new records" (PDF). Memoirs of the Queensland Museum – Nature. Memoirs of the Queensland Museum. Brisbane: Queensland Museum. 56 (1): 149–219. ISSN 0079-8835. Wikidata Q115789802.
  4. ↑ Howard, Robyn (August 2011). "Identifying Crabs at Maroochy Wetlands Sanctuary" (PDF). Maroochy Wetlands Sanctuary Support Group. Retrieved 31 October 2022.
  5. ↑ R. S. K. Barnes (March 1968). "Relative Carapace and Chela Proportions in Some Ocypodid Crabs (Brachyura, Ocypodidae)". Crustaceana. 14 (2): 131–136. doi:10.1163/156854068X00494. ISSN 0011-216X. JSTOR 20102925. Wikidata Q115790341.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.