Macrophthalmus setosus

Australian sentinel crab
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Infraorder:	Brachyura
Family:	Macrophthalmidae
Genus:	Macrophthalmus
Subgenus:	Mareotis
Species:	M. setosus
Binomial name
Macrophthalmus setosus H. Milne Edwards, 1852[1]

Macrophthalmus setosus is a species of sentinel crab found on the east coast of Australia, from around Queensland to Sydney.[2] Macrophthalmus setosus is found low down on muddy river and creek banks and in exposed sea grass areas in tidal zones, at times near mangroves.[2] Males have a tooth on the upper claw (dactyl). The carapace is around 40 mm wide, and rectangular, greater than 1.7 times wide than long.[3] Eye stalks are long and thin.

References

1. "WoRMS - World Register of Marine Species - Macrophthalmus (Mareotis) setosus H. Milne Edwards, 1852". www.marinespecies.org. Retrieved 20 November 2022.
2. Davie, P. (2012). "A review of Macrophthalmus sensu lato (Crustacea: Decapoda: Macrophthalmidae) from Australia, including two new species and new records". Memoirs of the Queensland Museum – Nature. 56 (1). Queensland Museum: 149–219.
3. Barnes, R.S.K (2010). "A review of the sentinel and allied crabs (Crustacea: Brachyura: Macrophthalmidae), with particular reference to the genus Macrophthalmus". The Raffles Bulletin of Zoology. 58 (1). BRILL: 31–49.