FIGURE 1. Polydora cornuta adult morphology. A in On adult and larval morphology of Polydora cornuta Bosc, 1802 (Annelida: Spionidae)

FIGURE 1. Polydora cornuta adult morphology. A, anterior end, dorsal view, showing palp scars (pa), ciliary bands of nuchal organs (no), nototrochs (nt) on chaetigers 3 and 4, and large lateral organs (lo) on chaetiger 1. B, same, left lateral view, showing occipital antenna (oa) on the caruncle. C, chaetigers 4–6, left lateral view, showing enlarged chaetiger 5 with modified notochaetae (mn) arranged in an oblique double row. D, chaetigers 5–7, left lateral view, showing lateral organs (lo) on chaetigers 6 and 7, hooded hooks (hh) and external part of secretory cells of glandular pouches (gp) on chaetiger 7, well developed parapodial lobes (lb) and postchaetal lamellae (pl). E–G, chaetiger 5 companion chaetae with dishevelled, feathery distal tip (fc) and compact, broom­like distal tip (bc), and heavy falcate spines (fs) with lateral tooth (lt) and subterminal flange (sf). E, left ventral view. F, right dorsal view. G, right ventral view.