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The fiddler crab or calling crab can be one of the hundred species of semiterrestrial marine crabs in the family Ocypodidae. [2] These crabs are well known for their extreme sexual dimorphism, where the male crabs have a major claw significantly larger than their minor claw, whilst females claws are both the same size. [3]
Leptuca speciosa, commonly known as the brilliant fiddler crab or the longfinger fiddler crab, is a species of fiddler crab native to the southern United States, Mexico, and the Caribbean. [1] Before 2016, the species was known as Uca speciosa. In 2016, the subgenus Leptuca was promoted to the genus level. [2] [3]
Leptuca thayeri, known generally as the Atlantic mangrove fiddler crab or mangrove fiddler, is a species of true crab in the family Ocypodidae. It is distributed all across the Western Atlantic. [1] Leptuca thayeri was formerly a member of the genus Uca, but in 2016 it was placed in the genus Leptuca, a former subgenus of Uca. [2] [3] [4]
Leptuca deichmanni, commonly known as Deichmann's fiddler crab, is a species of fiddler crab native to the eastern Pacific coast of Central America, in Costa Rica and Panama. [ 1 ] Taxonomy
Minuca pugnax is the most common species of fiddler crab on the east coast of the United States.Its natural range extends from Cape Cod to northern Florida. [2] In 2014, its northern limit was extended to Hampton, New Hampshire, as a result of a range expansion possibly due to climate change. [3]
Leptuca pugilator is one of only five species of fiddler crabs found primarily in temperate areas. [6] The species occurs on the east coast of North America and in the Gulf of Mexico, having been found as far north as Massachusetts and as far south as Texas and Florida. This species has also reportedly been found in the Bahamas. [7]
Like other fiddler crabs, Minuca minax males have one claw that is significantly larger than the other, while females have two equal-sized smaller claws. The joints on the claws are red, a noticeable feature that is the origin of the common name "redâjointed fiddler crab".
Leptuca cumulanta, commonly known as the heaping fiddler crab or the mangrove fiddler crab, is a species of fiddler crab native to tropical and subtropical areas of the western Atlantic. [ 1 ] [ 2 ] Taxonomy