Figure 016. Minuca longisignalis

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 Description: Figure 16. Minuca longisignalis (Salmon and Atsaides, 1968). 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. (A) Dorsal view. (B) Front view. (C) Inner cheliped. (D) Ocular view. (E) Ambulatory. (F) Comparison of legs between M. minax and M. longisignalis. (G) Color Photo. (H) Distribution Map (Finke 2024). Species Description: Large species < 25.6 mm. Carapace length about 67% width. Frontal region about 38% carapace width. Surface finely granular. H-depression shallow; cardiac-mesogastric region slightly swollen. Dactyl and pollex, wide; slight longer than manus. Gape wide; dactyl with four larger proximal tubercles; pollex with two large tubercle, on at mid-length the other near terminus. Outer manus with fine tubercles. No red pigment in articulations. On inner manus, oblique ridge highly developed near carpal cavity. Line of tubercles on inner pollex from distal tip to articulation. Line bifurcates at base of articulation. On walking legs, merus wide; width 43% of length. Ventral margin with a few long setae, marginal pile and pubescence. Species found only along the northern coast of the Gulf of Mexico between the Rio Grande in Texas and Cedar Key, Levi Co., Florida (Fig. 16H). This species is often confused with Minuca minax. A walking leg from M. longisignalis and are compared in Fig. 16F.