Figure 007. Leptuca leptodactyla

Creator

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

Preview

Identifier

Figure 7

Medium

photograph

Date Created

5-2025

Keywords

Fiddler crabs;

Description

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 Description: Figure 7. Leptuca leptodactyla (Rathbun, 1898). UNI 20. Collected: 11 May 2003, USA, Puerto Rico, Catano, Canal Rio Bayamon, mouth (18.4467997, -66.1597323). 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: Very small species, (width < 12 mm). Carapace smooth, cylindrical; widest at antero-lateral junction (Fig. 7A). Carapace length 60% width; frontal region about 29% carapace width (Fig. 7A,D). H-depression shallow. Eyestalks short. Dactyl and pollex of large cheliped very long compared to manus, large gap (Fig. 7B,C). Two tubercles in middle of dactyl, large proximal to articulation. Pollex with numerous small tubercles. Oblique ridge on inner surface of manus with large tubercles (Fig. 7C). Third to sixth abdominal segments (pleons) of male fused. Walking legs with few setae (Fig. 7E). Merus width of walking legs 32% length. Pan-tropical in the Caribbean and along the coast of South America. No records between southern Trinidad-Tobago to Sao Luis, Maranhão, Brazil (Fig. 7G).

Comments

This composite image is of the Leptuca leptodactyla 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, and Uca.

Object Description

1 PNG file

UNI Specimen Number

UNI 20

Year Collected

2003

Collection Location

18.4467997, -66.1597323

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 007. Leptuca leptodactyla" (2025). Fiddler Crabs Image Gallery. 3.
https://scholarworks.uni.edu/fiddlercrabs/3