Fig. 4. Arcotheres placunicola n in Arcotheres placunicola, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) from the window-pane shell, Placuna ephippium Philipsson, 1788 (Placunidae) in Singapore

Fig. 4. Arcotheres placunicola n. sp. A, B, D–P, paratype male (5.6 × 4.7 mm) (ZRC 2017.1010); C, Q, paratype young male (2.4 × 2.4 mm) (ZRC 2017.1014). Both specimens from Changi, Singapore. A, right chela and carpus (setae not drawn); B, C, male pleon; D, right MXP3 (setae not drawn); E–H, right P2–P5, respectively; I–L, left P2–P5, respectively (setae not drawn); L', distal part of P5 dactylus (dorsal view, soft setae not drawn); M, left G1 (ventral view, setae not drawn); N, left G1 (dorsal view, setae not drawn); O, left G2 (setae not drawn); P, right G2 (mesial view showing exopod, setae not drawn). Scales: A, B, E–L = 1.0 mm; M–P = 0.5 mm; C, L', Q = 0.25 mm.