Fig. 2

SEM dorsal view (a) and gross dorsal view (b) of the cephalic eye region of Marsupenaeus japonicus. The figure shows the eye attached to the bony palate (E), the optic calathus (Oc), the basal segment (Bs), the ocular plate (Op), the median rostrum (Ro), and the antennule (AU), which consists of the antennule peduncle (AUP) and the antennule flagellum (AUF). Additionally, the figure labels the setae (S), antennal flagellum (AF), scaphocerite (SCa), plumose seta (PLS), orbital spine (OS), and antennal spine (AS)