Glyphochaeta Bick, 2005

Prostomium blunt, anteriorly truncate or rounded, anterior margin with entire anterior margin. Lateral horns present. Caruncle present, continuing back to chaetiger 1. Occipital antenna absent. Nuchal organ short, at most one segment long (forming ciliated patches at the posterior margin of the prostomium). Eyes present; 4 eyes. Palps simple, lacking basal sheath. Dorsal ridge connecting bases of branchiae on chaetiger 1 absent. Prominent dorsal collar on setiger 2 absent. Dorsal branchiae absent. First branchiae without process at base on anterior face. Accessory branchiae arising from posterior part of notopodium absent. Ventral branchiae absent. Chaetiger 3 without filament at base of branchiae. Dorsal crests absent. Ventral crests absent. Chaetiger 1 notopodium present. Chaetiger 1 notochaetae present. Neuropodial lobe of chaetiger 2 rounded, approximately symmetrical. Neuropodial lobes of posterior chaetigers a single lobe. Interparapodial pouches absent. Chaetigers 2–4 similar, not strongly differentiated. Chaetiger 5 unmodified, similar to subsequent chaetigers. Posterior modified notochaetae absent. Notopodial hooded hooks absent. Neurochaetae of chaetiger 1 simple capillaries similar to those of subsequent chaetigers. Neuropodial hooded hooks present, first present on chaetiger 8–13. Neuropodial hooded hooks with accessory tooth or teeth above the main fang, 1 accessory tooth (bidentate) or 2 accessory teeth (tridentate), secondary tooth and main fang forming a prominent angle, about 90º or more. Shaft of neuropodial hooded hooks of constant thickness, lacking a constriction. Neuropodial sabre chaetae absent. Neuropodial spines present, grooved. Embedded bunches of notopodial needle chaetae absent. Grooved spines replace hooded hooks in neuropodia of chaetigers 14–20. Pygidium with 4 anal lobes.

Description generated from: Wilson, RS & McDiarmid, H 2013. Spionidae (Polychaeta)- A DELTA database of genera, and Australian species. Version 2; originally published as In RS Wilson, PA Hutchings & CJ Glasby (eds) Polychaetes: An Interactive Identification Guide. CSIRO Publishing, Melbourne.

Additional references:
Bick, A. 2005. A new polychaete genus and species of the Kongsfjorden, Spitsbergen, Svalbard. Journal of Natural History 39, 2987-2996.