polychaetes.info

Voucher specimen incomplete, 34 chaetigers long, small threadlike, 650µm wide at first chaetiger. Colour in alcohol pale, white. General appearance slightly inflated and dorso-ventrally flattened from chaetiger 2-9, 'bristly' appearance.

Prostomium bottle-shaped, broadly rounded frontal margin, sometimes anvil-shaped. Eyes absent. Caruncle to anterior margin of chaetiger 2. Peristomium narrow.

Branchiae three pairs, on chaetigers 2-4. First pair of branchiae narrow, digiform, clear with 'bubbly' look, slightly shorter or equal to length of dorsal lamellae of chaetiger 3, arising proximal to the dorsal mid-line. Second pair of branchiae digiform, tapering, half length or less than first branchial pair, arising posterior to the dorsal lamellae. Third pair of branchiae, short, strap-like, equal to in length or shorter than second branchial pair. All branchiae apinnate.

Dorsal lamellae of chaetiger 1 reduced, or absent, on chaetiger 2 becoming foliose, maximal in size on chaetiger 3, thereafter becoming smaller and progressively more sub-triangular. After chaetiger 9, lamellae are low ridges. Ventral lamellae fan shaped, becoming reduced in posterior segments. Small, pre-chaetal lamellae present in chaetigers 6-13, visible as a papilla-like bulge.

Notochaetae simple capillaries, in densely packed fascicles from chaetigers 2-10. Neurochaetae in two rows, simple capillaries only in anterior region, in densely packed fasicles from chaetigers 3-12. Neuropodial hooded hooks from chaetiger 17-18. Hooks multi-dentate with 2-3 small fangs above the main tooth.