''Leptomithrax'' is a genus of

crab Crabs are decapod crustaceans of the infraorder Brachyura (meaning "short tailed" in Greek language, Greek), which typically have a very short projecting tail-like abdomen#Arthropoda, abdomen, usually hidden entirely under the Thorax (arthropo ...

s in the family

Majidae Majidae is a family (biology), family of crabs, comprising around 200 Ocean, marine species inside 52 genera, with a carapace that is longer than it is broad, and which forms a point at the front. The arthropod leg, legs can be very long in some ...

, first described by

Edward J. Miers Edward John Miers FZS FLS (1851–15 October 1930) was a British zoologist and curator of the crustacean collection at the Natural History Museum in London. He contributed to the scientific reports from the ''Challenger'' expedition of 1872–1 ...

in 1876. They have been on Earth for 37.2 million years.

Species

Extant species

Extinct species

References

Majoidea Decapod genera Taxa described in 1876 Taxa named by Edward J. Miers {{Majoidea-stub