Capitella Blainville 1828

Genus Capitella Blainville, 1828 Type species: Lumbricus capitatus Fabricius, 1780, by monotypy. Redescribed by Blake (2009). Diagnosis (after Blake 2009). Prostomium conical to bluntly rounded, sometimes dorsoventrally flattened, with dorsal groove present or absent, with nuchal organs as paired slits at border between prostomium and peristomium; eyes present or absent. Peristomium partly fused or distinct from prostomium. Thorax with nine segments, all chaetigerous with capillary chaetae in both rami of chaetigers 1–3, 1–4, 1–6, or 1–7, otherwise with capillaries and hooks in various combinations in both rami; chaetigers 8–9 with hooded hooks, mixed capillaries and hooks, or all capillaries, these arrangements sometimes growth dependent; prominent genital spines present in chaetigers 8–9 of males and hermaphrodites; females usually with enlarged lateral genital pores between chaetigers 7–8 or 8–9. Capillaries unilimbate with narrow wings; hooded hooks with multiple rows of denticles above main fang. Abdominal segments with hooded hooks in both rami; capillaries absent. Branchiae present or absent. Pygidium without appendages.
Published as part of Magalhäes, Wagner F. & Hilliard, Justin, 2022, Two new deep-sea species of Capitella (Annelida: Capitellidae) from sunken wood in the Northeast Pacific, pp. 229-240 in Zootaxa 5125 (2) on page 230, DOI: 10.11646/zootaxa.5125.2.7, http://zenodo.org/record/6424594
{"references":["Blainville, H. M. D. de (1828) Mollusques, Vers et Zoophytes. In: Dictionnaire des Sciences naturelles, dans lequel on traite methodiquement des differens etres de la nature, consideres soit en eux-memes. d'apres l'etat actuel de nos connais sciences, soit relativement a l'utilite qu'en peuvent retirer la medicine, l'agriculture, le commerce et les arts. Suive d'une biographie des plus celebres naturalistes. Vol. 57. F. G. Levrault, Strasbourg and Paris, pp. 430.","Fabricius, O. (1780) Fauna Groenlandica, systematice sistens animalia Groenlandiae Occidentalis hactenus indagata, quoad nomen specificum, triviale, vernaculumque; synonyma auctorum plurium, descriptionem, locum, victum, generationem, mores, usum, capturamque singuli, prout detegendi occasio fuit, maximaque parte secundum proprias observationes. Ioannis Gottlob Rothe, Hafniae & Lipsiae, xvi + 452 pp."]}