FIGURE 4 in Uca (Xeruca), a new subgenus for the Taiwanese fiddler crab Uca formosensis Rathbun, 1921 (Crustacea: Decapoda: Ocypodidae), based on morphological and molecular evidence

FIGURE 4. Carapaces of Uca formosensis and other species with similar morphology. A, U. formosensis (NCHUZOOL 13672, CW 29.6 mm, left-handed; modified from Shih et al. 1999); B, U. bellator (NCHUZOOL 13653, CW 18.7 mm, lefthanded); C, U. seismella (USNM 137666, holotype, CW 13.0 mm, right-handed; modified from Crane 1975); D. U. polita (USNM 137667, holotype, CW 22.5 mm, right-handed; modified from Crane 1975); E, U. arcuata (NCHUZOOL 13660, CW 38.2 mm, left-handed); F, U. urvillei (NCHUZOOL 13661, CW 30.1 mm, left-handed); G, U. tetragonon (NCHUZOOL 13664, CW 18.3 mm, right-handed); H, U. jocelynae (NMNS 6177-001, holotype, CW 21.7 mm, right-handed).