Table 3. Morphological characteristics of several Brachyuran crabs

Species Carapace shape Color Source
Metopograpsus oceanicus The dorsal carapace is trapezoidal in shape narrowing at the bottom of the posterior.The margin of posterolateral and anterolateral parts has straight edges without teeth/spines. - Claws which are shorter than the pereiopods are purplish-orange in color, have a rough white dotted motif and the fixed finger (polex) is white.- The carpus, propodus and dactylus segments have yellow setae with fine hairs. A pair of pereiopod at the merus part is black with brownish yellow motif. (Paransa et al., 2023) (Current finding)
Metopograpsus sp. The dorsal carapace is trapezoidal. The dorsal of carapace is blackish green color.Claw is purple with black spots and white fixed finger. Manik et al. (2020)
Metopogragsus messor The dorsal carapace is trapezoidal; Carapace with anterolateral margins distinctly converging posteriorly. Claws are purple and tend to be lighter than M. oceanicus. Naderloo (2017)
Metopogragsus thukuhar The dorsal carapace is quadrate; Carapace with anterolateral margins slightly converging posteriorly, nearly straight. Claws are purple. Naderloo (2017)
Metopograpsus latifrons The claws have light brown color, claw tips are brownish white with rough white spots; periopods are dark brown with irregular white spots. Amin et al. (2021)
Metopograpsus oceanicus Distinctly trapezoidal, posteriorly narrowing carapace. Mottled in black, brown, and light tan; Chelae are violet in life. Paulay (2007)