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Taxonomy
Ceratonereis mirabilis Kinberg, 1865
Nomenclature
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Subfamily: NereidinaeGenus: Ceratonereis
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Synonyms: 2
Media
SUMMARY
Prostomium with anterior margin indented. Longest tentacular cirri extend back to chaetiger 10–15. Maxillary ring divided into discrete Areas. Maxillary ring of pharynx with paragnaths; paragnaths arranged in discrete areas. Area I paragnaths absent; II present; II conical paragnaths present; 8–14 conical paragnaths on Area II; II minute rod-like paragnaths in a compact cluster absent; pectinate paragnaths absent; III present; conical paragnaths present; 7–11 paragnaths; minute rod-like paragnaths in a compact cluster absent; pectinate paragnaths absent; IV present; conical paragnaths present; 8–14 conical paragnaths; minute rod-like paragnaths in a compact cluster absent; smooth bar-like paragnaths absent; pectinate paragnaths absent. Oral ring papillae absent. Oral ring paragnaths absent. Transverse dorsal lamellae absent. Dorsal notopodial ligule not markedly elongate on posterior chaetigers. Not markedly broader on posterior chaetigers. Dorsal notopodial ligule markedly reduced on posterior chaetigers. Prechaetal notopodial lobe absent. Dorsal cirrus not terminally attached to dorsal notopodial ligule on posterior chaetigers. Dorsal cirrus length about 5–6 times ventral notopodial ligule at chaetiger 10-20. Neuropodial postchaetal lobe present, at least on some anterior chaetigers. Ventral neuropodial ligule on posterior chaetigers reduced, up to half length of acicular neuropodial ligule. Ventral cirri single. Notopodial homogomph spinigers absent; sesquigomph spinigers present. Notopodial homogomph falcigers absent. Neuropodial dorsal fascicle fused falcigers absent.
Ecology and Distribution