| 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.
