Fig. 4 in Morphology and phylogeny of a new polychaete, Prionospio expansa (Annelida: Spionidae) from the intertidal zone of the Yellow Sea, Korea

Fig. 4. SEM images of two Prionospio species from Korean waters. A–I. Prionospio expansa sp. nov. A–B, D–F. Paratype (NIBRIV0000901890). C, G–I. Paratype (NIBRIV0000901891). J–K. Korean Prionospio japonica Okuda, 1935, non-type. A. Entire body without palp, dorsal view. B. Anterior end with seven chaetigers, dorsolateral view. C. Anterior end with eight chaetigers, dorsal view. D. Anterior end, front view. E. Frontal margin of prostomium, arrows indicating frontal small peaks. F. Pygidium with middorsal cirrus and paired ventral lappets. G. Hook of middle chaetiger, hood removed, lateral view. H. Hook of posterior chaetiger, lateral view. I. Hook of posterior chaetiger, ventrolateral view. J. Anterior end with seven chaetigers, dorsolateral view. K. Pygidium. Abbreviation: tcb = transverse ciliated bands. Scale bars: A = 0.5 mm; B–D = 0.1 mm; E = 10 μm; F = 20 μm; G = 2 μm; H–I = 1 μm; J–K = 0.2 mm.