Fiddler Crabs Image Gallery

IN PROCESS...

Dr. Carl Thurman, professor of Biology at the University of Northern Iowa, has conducted research on fiddler crabs since 1967. This collection contains high resolution black and white photographs of fiddler crab species from the Atlantic Ocean and Gulf of Mexico areas in the tropics. The Fiddler Crab Species Image Gallery is composed of composite images for 21 out of approximately 110 known species of fiddler crabs. This image gallery can be used as an identification tool for tropical research.

Related collections by Carl L. Thurman in UNI ScholarWorks:

Sub-Collections. Images by genus (arranged alphabetically in columns):

Afruca Genus	Minuca Genus
Leptuca Genus	Uca Genus

Note: The logobanner image is in the public domain. Citation: Rathbun, Mary J. (1918.) Grapsoid Crabs of America., Bulletin (United States National Museum); no.97, Washington, DC: Government Printing Office.

Printing is not supported at the primary Gallery Thumbnail page. Please first navigate to a specific Image before printing.

Afruca tangeri

2024

Description: Afruca tangeri. (Eydoux, 1835). UNI 140. Collected: Aug 1974, Eastern Atlantic Ocean, Morocca, El Ribia, Oued ouner. Range: southern Portugal to Angola. Scale Bar = 10mm.

Alt Text: Composite photograph of the Afruca tangeri fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Leptuca cumulanta

2024

Description: Leptuca cumulanta. UNI 732. Collected: 30 July 2018, North Atlantic Ocean, Buyana, East Demerara, Pigeon Island (LBI), mud on canal and mangroves (6.81521, -58.06480). Space Bar = 10mm.

Alt Text: Composite photograph of the Leptuca cumulanta fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Leptuca leptodactyla

2024

Description: Leptuca leptodoctyla. (Rathbun 1898). UNI 20. Collected: 11 May 2003, Puerto Rico, Catano, Canal Rio Bayamon, mouth (18.4467997, -66.1597323). Space Bar = 10mm.

Alt Text: Composite photograph of the Leptuca leptodoctyla fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Leptuca pugilator

2024

Description: Leptuca pugilator. UNI 397. Collected: 14 Aug 2005, USA, Florida, St. Joseph Peninsula State Park, near boat ramp on bay (29.764246, -85.402083) Scale Bar = 10mm.

Alt Text: Composite photograph of the Leptuca pugilator fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Leptuca speciosa

2024

Description: Leptuca speciosa. (Ives 1891) UNI 93. Collected: 4 September 1976, Mexico, Yucatan, Harbor, West of Progresso (21.277956, -89.703382). Space Bar = 10mm.

Alt Text: Composite photograph of the Leptuca speciosa fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Leptuca spinicarpa

2024

Description: Leptuca spinicarpa. UNI 590. Collected: 22 Jun 2011, USA, Alabama, Mobile Co., East Dauphin Island, Causeway (30.31233, -88.13845). Scale Bar = 10mm.

Alt Text: Composite photograph of the Leptuca spinicarpa fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Leptuca subcylindrica

2024

Description: Leptuca subcylindrica. UNI 98. Collected: July 1995, USA, Texas, Klebert Co., Kingsville, Under US 77, Bridge over Santa Gertudis Creek (27.47677, -97.855088). Space Bar = 10mm.

Alt Text: Composite photograph of the Leptuca subcylindrica fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Leptuca thayeri

2024

Description: Leptuca thayeri. UNI 151. Collected: June 2003, USA, Florida, Monroe Co., Chokoloskee Bay, West Everglades (25.818773, -81.359583). Space Bar = 10mm.

Alt Text: Composite photograph of the Leptuca thayeri fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Leptuca uruguayensis

2024

Description: Leptuca uruguayensis. UNI 63. Collected: Jan 2011, Argentina, Provincia Buenos Aires, Mar Chiquita, Arroyo sur (-37.746733, -57.433427). Space Bar = 10mm.

Alt Text: Composite photograph of the Leptuca uruguayensis fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca burgersi

2024

Description Minuca burgersi. UNI 207. Collected: 25 November 2008, USA, Puerto Rico, Toa Baja, Rio La Plata, mouth (18.4660138, -66.1999654). Space Bar = 10mm.

Alt Text: Composite photograph of the Minuca burgersi crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca longisignalis

2024

Description: Minuca longisignails. UNI 247. Collected: 20 Jun 2002, USA, Alabama, Baldwin Co., Mobile Bay, Tenesaw River at I-10 bridge (30.67395, -87.95417). Scale Bar = 10mm.

Alt Text: Composite photograph of the Minuca longisignails fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca marguerita

2024

Description: Minuca marguerita. (Thurman 1981). UNI 33. Collected: December 1972, Mexico, Tamaulipas, Tampico, Rio, Panuco, river bank near ferry (22.245792, -97.82552). Scale Bar = 10mm.

Alt Text: Composite photograph of the Minuca marguerita fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca minax

2024

Description: Minuca minax. (LeConte, 1855). UNI 562. Collected: Gulf of Mexico, United States, Louisiana, Iberia Parish, Louisa. Intracoastal canal bridge on HWY 319 (29.771180, -91.784839). Range: East coast of United States (Cape Cod, MA to northeast Florida) and Gulf coast (west Florida to east Texas). Scale Bar = 10mm.

Alt Text: Composite photograph of the Minuca minax fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca mordax

2024

Description: Minuca mordax. UNI 726. Collected: 12 March 2018, Atlantic Ocean, Trinidad and Tobago, Cocos Bay, Narvia Co., Bush-Bush Wildlife Sanctuary, Mouth Navet River (10.39862, -61,02523). Scale Bar = 10mm.

Alt Text: Composite photograph of the Minuca mordax fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca panema

2024

Description: Minuca panema. UNI 721. Collected: March 13, 2018, Caribbean Sea, Trinidad and Tobago, St. Ann’s Co., Maracas Bay, Burro River (10.75943, -61.44206). Scale Bar = 10 mm.

Alt Text: Composite photograph of the Minuca panema fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca pugnax

2024

Description: Minuca pugnax. UNI 358. Collected: 15 Jul 2001, USA, Massachusetts, Lloyd Center, Near Slocum River (41.5271500, -70.9832668). Scale Bar = 10mm.

Alt Text: Composite photograph of the Minuca pugnax fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca rapax

2024

Description: Minuca rapax. UNI 478. Collected: 5 Sep 1976, Mexico, Yucatan, San Felipe, Boca del Rio Lagartos, near military base (21.594013, -88.161615). Scale Bar = 10mm.

Alt Text: Composite photograph of the Minuca rapax fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca rapax virens

2024

Description: Minuca rapax virens. UNI 457. Collected 22 April 1977, USA, Texas, San Patricio Co., Corpus Christi Bay, Ingleside Cove (27.837838, -97.220076). Scale Bar = 10mm.

Alt Text: Composite photograph of the Minuca rapax virens fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Minuca vicoriana

2024

Description: Minuca victoriana. UNI 168. Collected: 9 July 2009, Brazil, Espirito Santo, Vitoria, Bairro Joana D’are mangroves (-20.283984, -40.305919). Scale Bar = 10mm.

Alt Text: Composite photograph of the Minuca victoriana fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

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Minuca vocator

2024

Description: Minuca vocator. UNI 698. Collected: April 2011, Mexico, Veracruz, Laguna Tamiahua-intracoastal Canal (20.96569, -97.31073 to 22.10059, -97.77755). Scale Bar = 10mm.

Alt Text: Composite photograph of the Minuca vocator fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

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Uca major

2024

Description: Uca major. (Herbst 1782). UNI 29. Collected: 19 July 2007, Bahamas, San Salvador, Pigeon Creek, Eastside Quarry (23.981211, -74.486231). Scale Bar = 10 mm.

Alt Text: Composite photograph of the Uca major fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key:
Uca maracoani

2024

Description: Uca maracoani. (Latreille, 1802-1803). UNI 40. Collected: 20 July 2010, southwestern Atlantic Ocean, Brazil, Maranhão, São Luis, Praia da Raposa, Rio Munin (-2.415758, -44.100823). Range: Trinidad-Tobago to Paraná, Brazil. Space Bar = 10mm.

Alt Text: Composite photograph of the Uca maracoani fiddler crab which includes several black & white images of different views of the crab, a color photograph, and a distribution map.

Composite Image Key: