Fiddler Crabs Image Gallery
Preview
Identifier
Figure 15
Medium
photograph
Date Created
5-2025
Keywords
Fiddler crabs;
Description
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 Description: Figure 15. Minuca burgersi (Holthuis, 1967)*. UNI 207. Collected: 25-Nov-2008, USA, Puerto Rico, Toa Baja, Rio La Plata, mouth (18.4660138, -66.1999654). Scale Bar = 10mm. (A) Dorsal view. (B) Front view. (C) Inner cheliped. (D) Ocular view. (E) Ambulatory. (F) Color Photo. (G) Distribution Map (Finke 2024).
Species Description: Moderate-sized species (< 20 mm). Carapace length about 65% width, frontal region 34% width (Fig. 15A). Carapace convex with shape almost trapezoidal or hexagonal. Surface smooth but uneven. Post-orbital depression deep. Antero-lateral angle pointed forward. Antero-lateral margins curving inward. Postero-lateral margins curving to midline. Manus finely granular. Dactyl and pollex blade-line, about same length as manus (Fig. 15B,C). Gap wide. Pollex nearly straight in larger specimens, single large tubercle at mid-length. Dactyl with moderate sized tubercles, four proximal and one distal. On inner manus, oblique ridge high terminating in carpal cavity, no carina lining (Fig. 15C). Carina following dorsal edge of cavity, distal end flexed toward dactyl articulation. Two pre-dactyl ridges present, lower ridge diverging outward then bend back toward articulation. On walking legs, merus width 37% length (Fig. 15E). Pubescence on dorsal surface of carpus and propodus, very few setae. Species is primarily distributed in eastern Mexico, central America, northern South America and Caribbean including south Florida (Fig. 15G). *This species is morphologically identical to Minuca panema (Coelho, 1972). Species best distinguished based on collecting location and DNA sequencing (Thurman et al. 2023).
Object Description
1 PNG file
UNI Specimen Number
UNI 207
Year Collected
2008
Collection Location
18.4660138, -66.1999654
Gender
male
Copyright
©2025 Abby Hutchins, Amber Finke, and Carl L. Thurman
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Type
Image
Language
en
File Format
image/png
Recommended Citation
Hutchins, Abby; Finke, Amber; and Thurman, Carl L., "Figure 015. Minuca burgersi" (2025). Fiddler Crabs Image Gallery. 8.
https://scholarworks.uni.edu/fiddlercrabs/8
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Figure -15_minuca_burgersi_links.pdf (407 kB)PDF version composite image (active links)
Keywords
Fiddler crabs;
Comments
This composite image is of the Minuca burgersi fiddler crab. It is a part of the parent Fiddler Crabs Image Gallery collection at the University of Northern Iowa, which has images of Fiddler Crabs located in the Atlantic Ocean and the Gulf of Mexico from the following genera: Afruca, Leptuca, Minuca, and Uca.