Matutidae
| Matutidae Temporal range: | |
|---|---|
| Ashtoret lunaris, dorsal side | |
| Male Ashtoret lunaris, ventral side | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Clade: | Reptantia |
| Infraorder: | Brachyura |
| Section: | Eubrachyura |
| Subsection: | Heterotremata |
| Superfamily: | Calappoidea |
| Family: | Matutidae De Haan, 1835 |
| Genera | |
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See text | |
Matutidae is a family of crabs, sometimes called moon crabs, adapted for swimming or digging. They differ from the swimming crabs of the family Portunidae in that all five pairs of legs are flattened, rather than just the last pair, as in Portunidae. Crabs in the Matutidae are aggressive predators.