Figure 004. Uca major

Creator

Abby Hutchins, University of Northern IowaFollow
Amber Finke, University of Northern IowaFollow
Carl L. Thurman, University of Northern IowaFollow

Preview

Identifier

Figure 4

Medium

photograph

Date Created

5-2025

Keywords

Fiddler crabs;

Description

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 Description: Figure 4. 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. (A) Dorsal view. (B) Front view. (C) Inner cheliped. (D) Ocular view. (E) Ambulatory. (F) Color Photo. (G) Distribution Map (Finke 2024).:

Species Description: Large species (width < 35 mm). Carapace smooth, carapace length 55% width (Fig. 4A). Frontal region less than 9.4% carapace width (Fig. 4A,D). Eyestalks very long and slim (Fig. 4D). Lower orbit dentations square (Fig. 4D). Anterolateral angle forming sharp, outward-pointing spine. Dactyl and pollex almost same width (Fig. 3B), gap when large cheliped closed. Lower edge of manus with role of uniform-sized tubercles (Fig. 4B,C). Terminus of pollex with sharp spine. On walking legs, merus width is 35% of length. Very few setae in walking legs (Fig. 4E). Found in eastern Mexico, the Caribbean and northern South America (Fig. 4G).

Comments

This composite image is of the Uca major 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.

Object Description

1 PNG file

UNI Specimen Number

UNI 29

Year Collected

2007

Collection Location

23.981211, -74.486231

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 004. Uca major" (2025). Fiddler Crabs Image Gallery. 15.
https://scholarworks.uni.edu/fiddlercrabs/15