Notoproctus cf. oculatus. A.- Entire body. B.- Pygidium. C.- Cephalic end. D.- Fisrt chaetiger neuropodia hook. E.- Acicular neurochaetae. F.- Anterior limbated notochaetae. G.- Third chaetiger neuropodial hook. H.- Bilimbated and spinulated notochaetae. I.- Spinulated notochaetae. J, K.- Typical neuropodial hook (J: lateral view, K: frontal view). Scale bars in microns.