Figure 2 in Chaetotaxy and setal diversity of grooming legs in species of porcelain crabs (Crustacea: Anomura: Porcellanidae)

Figure 2. (A-H) Photomicrograph (SEM) of grooming leg, Megalobrachium roseum (Rathbun, 1900), female (MZUSP 33143). (A) Left P5, ventral view. (B) Pappose setae on distolateral surface of basis-ischium. (C) Straight serrate setae on distal surface of carpus, ventral view. (D) Detail of the straight serrate setae on distal surface of carpus. (E) Distal surface of chela (propodus and dactylus), frontal view. (F) Dactylus and distal third of propodus, lateral view. (G) Distal margin of propodus and dactylus with tooth-like cuspidate and club-shaped setae. (H) Detail of tooth-like cuspidate setae on distal margin of propodus and dactylus. Note in F distinct gap between fixed and movable fingers when chela is closed. Cx = coxa; BI = basis-ischium; M = merus; C = carpus; P = propodus; D = dactylus; CS = club-shaped setae; Pp = pappose setae; S0 = simple setae; S1 = sickle-shaped serrate setae; SS = straight serrate setae;TC = tooth-like cuspidate setae. Scale bars = (A) 0.1 mm; (B-D, G) 0.01 mm; (E, F) 0.05 mm; (H) 0.005 mm.