#Ocypodidae
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bebedi.bsky.social
Fiddler on the beach - a #westafricanfiddlercrab displaying to its rivals on the edge of a #estuary
#wildlife #nature #africanwildlife #photography #canon #island #africa #AfrucaTangeri #wildlifephotography
#photographersofbluesky #crab #Ocypodidae
#crustacean
📍 #BoaVista #CaboVerde
September 30, 2026 at 1:01 PM
jeremysell.bsky.social
Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017.
Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017. Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017.
March 3, 2025 at 1:32 PM
jeremysell.bsky.social
Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017.
Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017. Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017.
November 22, 2025 at 11:45 PM
jeremysell.bsky.social
Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017.
Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017. Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017.
June 19, 2025 at 4:35 PM
ketrinadrawsalot.bsky.social
If you see this, post a crab! 🦀🦀🦀
Five crabs accompanied by blue labels: a brown crab (Cancridae), a spider crab (Majoidea), a pea crab (Pinnotheridae), a cartoony orange crab (???), and a fiddler crab (Ocypodidae)
February 28, 2026 at 7:44 AM
jeremysell.bsky.social
Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017.
Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017. Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunt and scavenge on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 17 Jun 2017.
March 10, 2026 at 2:06 PM
mrosenberg.bsky.social
New species of fiddler crab has been described from the Pacific coast of Panama, bringing the current total number of recognized extant species to 108.

doi.org/10.15359/rev...
A new fiddler crab species (Brachyura: Ocypodidae) from the Pacific coast of Panama | Revista Ciencias Marinas y Costeras
doi.org
February 4, 2026 at 7:48 PM
jeremysell.bsky.social
Atlantic ghost crabs (Decapoda: Ocypodidae: Ocypode quadrata) hunting and scavenging along the Gulf of Mexico. They can be found on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 06/17/2017.
Atlantic ghost crab (Decapoda: Ocypodidae: Ocypode quadrata) hunting and scavenging along the Gulf of Mexico. They can be found on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 06/16/2017. Atlantic ghost crab (Decapoda: Ocypodidae: Ocypode quadrata) hunting and scavenging along the Gulf of Mexico. They can be found on beaches from New England to southern Brazil. Their common name comes from their pale color and nocturnal habits. Padre Island National Seashore, Texas, 06/16/2017.
January 8, 2025 at 11:09 PM
mrosenberg.bsky.social
New fiddler crab species! Get'em while they're hot! 🦀

doi.org/10.11646/zoo...
Description of Leptuca capillosa sp. nov., a new fiddler crab species (Crustacea, Decapoda, Ocypodidae) from the continental coast of Ecuador | Zootaxa
doi.org
July 20, 2026 at 4:22 PM
dcfitzgerald.bsky.social
Fiddler crabs, family Ocypodidae, semi-terrestrial marine crabs known for having distinct sexual dimorphism. The males have one claw significantly larger than the other, while females have claws of equal size. #biology #nature #science #photo #wildlife #animals
Fiddler crabs, family Ocypodidae, are small, semiterrestrial marine crabs known for their distinct sexual dimorphism. The males have one claw significantly larger than the other, while females have claws of equal size. #biology #nature #science #photo #wildlife #animals
April 5, 2025 at 7:34 AM
fishsqueezer.bsky.social
Interesting...Atlantic mangrove fiddlers aren't actually dependent on mangroves, just tropical temperatures. As the Atlantic ocean warmed 0.5° C per decade, iNat showed the crabs spreading north from Jacksonville FL to salt marshes in SC (over 300 km) - much faster than mangroves. #Invert 🧪🌎 🌿🌱
Northern range expansion of the Atlantic mangrove fiddler crab Leptuca thayeri Rathbun, 1900 (Decapoda: Brachyura: Ocypodidae)
Abstract. Tropicalization is a global phenomenon where tropical or sub-tropical species expand their ranges poleward into temperate areas. We document the
academic.oup.com
March 2, 2026 at 7:21 PM
bigfloofficiel.bsky.social
"LE crabe" alors que ya plus de 3500 espèces dont des tourteaux, ocypodidae ou encore des araignées de mer. Vous avez de quoi partager je pense.
November 21, 2024 at 10:14 PM
mrosenberg.bsky.social
The sixth match features Austruca cryptica (Cryptic Fiddler Crab) vs. Austruca sindensis (Indus Fiddler Crab)

 #FiddlerCrabBracket #FiddlerCrab 🦀🦑🧪
Male Austrica cryptica. Photo from Michie, L.A., S.M. Cragg, R.S.K. Barnes, and W.A. Bennett (2015) Uca cryptica Naderloo, Türkay & Chen, 2010 (Crustacea: Brachyura: Ocypodidae) is no longer cryptic. Zootaxa 3981(2):291-295, figure 4d. Male Austrica sindensis. Photo provided by Alireza Ghaem-Maghami.
April 8, 2024 at 3:27 PM
paulawhyman.bsky.social
I've always been a little obsessed with these fiddler crabs that live among the mangrove roots, so I was interested to see that they're moving north, even to places where there are no mangrove trees.
🌿🌎
Northern range expansion of the Atlantic mangrove fiddler crab Leptuca thayeri Rathbun, 1900 (Decapoda: Brachyura: Ocypodidae)
Abstract. Tropicalization is a global phenomenon where tropical or sub-tropical species expand their ranges poleward into temperate areas. We document the
academic.oup.com
February 27, 2026 at 4:57 PM
federgeistchen.bsky.social
Indeed it is! It's a fiddler crab (family Ocypodidae), I think? They're all very cool (www.inaturalist.org/observations...). Sadly, they don't exist where I live. I believe, a lot of different species can be found in mangrove forests
Observations
Observations of Ghost and Fiddler Crabs
www.inaturalist.org
December 1, 2025 at 8:16 PM
mrosenberg.bsky.social
Our third bout today is a face-off between Paraleptuca boninensis (Bonin Islands Fiddler Crab) vs. Xeruca formosensis (Taiwanese Fiddler Crab)

#FiddlerCrabBracket #FiddlerCrab 🦀🦑🧪
Male Paraleptuca boninensis. Photo from: Shih, H.-T., T. Komai, and M.-Y. Liu (2013) A new species of fiddler crab from the Ogasawara (Bonin) Islands, Japan, separated from the widely-distributed sister species Uca (Paraleptuca) crassipes (White, 1847) (Crustacea: Decapoda: Brachyura: Ocypodidae). Zootaxa 3746(1):175–193, figure 6A. Male Xeruca formosensis. Photo from iNaturalist: https://www.inaturalist.org/observations/51779906
April 15, 2024 at 3:10 PM
jopabinia.bsky.social
I don't think it's Geograpsus, it is an Ocypodidae. Need to look up which species might live there
October 26, 2023 at 12:20 PM
livesarah.bsky.social
“A single vehicle can crush up to 0.75% of the intertidal population [of crabs]”.

Driving on the beach kills the birds’ food.
Vehicles <i>versus</i> conservation of invertebrates on sandy beaches: mortalities inflicted by off‐road vehicles on ghost crabs
Sandy beaches face increasing anthropogenic pressures, with vehicle traffic being ecologically highly harmful. Ghost crabs (Fam. Ocypodidae) are conspicuous on many beaches, and they have been used a...
onlinelibrary.wiley.com
August 28, 2026 at 8:14 AM
mrosenberg.bsky.social
Our fifth matchup is between Paraleptuca boninensis (Bonin Islands Fiddler Crab) vs. Leptuca tenuipedis (Slender-legged Fiddler Crab)

 #FiddlerCrabBracket #FiddlerCrab 🦀🦑🧪
Male Paraleptuca boninensis. Photo from: Shih, H.-T., T. Komai, and M.-Y. Liu (2013) A new species of fiddler crab from the Ogasawara (Bonin) Islands, Japan, separated from the widely-distributed sister species Uca (Paraleptuca) crassipes (White, 1847) (Crustacea: Decapoda: Brachyura: Ocypodidae). Zootaxa 3746(1):175–193, figure 6A. Male Leptuca tenuipedis. Personal photo.
April 3, 2024 at 2:05 PM
neuroethology.org
J Comp Neurol: The functional anatomy of the fiddler crab compound eye (Uca vomeris: Ocypodidae, Brachyura, Decapoda) http://bit.ly/19qcKqq
January 18, 2025 at 7:30 AM
jopabinia.bsky.social
We have Uca virens, U. musica, and Afruca tangeri for the next project (n = 9 Ocypodidae)
April 18, 2024 at 4:38 AM
snarkhunt.bsky.social
From the Ocypodidae family.
June 11, 2026 at 6:16 PM
jenniferauh.bsky.social
#fiddlercrab 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
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
December 5, 2024 at 3:28 PM
eurekamag.com
ICYMI: Fiddler crabs crustacea decapoda ocypodidae of taiwan
Fiddler crabs crustacea decapoda ocypodidae of taiwan
The fiddler crabs of the genus Uca (family Ocypodidae) are represented by eight species in Taiwan, namely U. arcuata (De Haan, 1835), U. coarctata (H. Milne Edwards, 1852), U. dussumieri (H. Milne Edwards, 1852), U. borealis Crane, 1975, U....
eurekamag.com
November 14, 2025 at 12:31 PM
eurekamag.com
Fiddler crabs crustacea decapoda ocypodidae of taiwan
Fiddler crabs crustacea decapoda ocypodidae of taiwan
The fiddler crabs of the genus Uca (family Ocypodidae) are represented by eight species in Taiwan, namely U. arcuata (De Haan, 1835), U. coarctata (H. Milne Edwards, 1852), U. dussumieri (H. Milne Edwards, 1852), U. borealis Crane, 1975, U....
eurekamag.com
November 13, 2025 at 12:30 PM