Figure 014. Leptuca uruguayensis

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 Description: Figure 14. Leptuca uruguayensis (Nobili, 1901). UNI 63. Collected: Jan-2011, Argentina, Provincia Buenos Aires, Mar Chiquita, Arroyo sur (-37.746733, -57.433427). 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: Small species (width < 17 mm). Carapace wider than long, very convex (Fig. 14A). Carapace length 63% width. Front 25% carapace width. Eyestalks short. Antero-lateral angle sharp and pointing outward. Anterio-lateral margins short and parallel (Fig. 14A). Lateral margin converging in posterior. Dactyl and pollex of large cheliped longer than manus (Fig. 14B,C). Dactyl with 4-5 evenly spaced large tubercles. Gap wide. Inner manus with clear oblique ridge of large tubercles that terminate at the edge of the carpal cavity. Few setae on walking legs (Fig. 14e). Merus width 37 % length. Found from Cabo Frio, Rio de Janeiro to northern Argentina (Fig. 14G).