Two New Species of Composetia (Annelida: Nereididae) from Small Estuaries in the Ryukyu Islands, Southern Japan, with a List of All Species Currently Belonging to Composetia Author Sato, Masanori Graduate School of Science and Engineering, Kagoshima University, Kagoshima 890 - 0065, Japan sato@sci.kagoshima-u.ac.jp text Species Diversity 2020 2020-01-01 25 11 24 journal article 10.12782/specdiv.25.11 63d2151d-fe20-43df-94e8-2bbcbd97242a 2189-7301 3751625 1E0F263F-FDA3-4AB8-B93E-DD534C3B1CD0 Key to species of Composetia recorded from Japan 1 Notopodial prechaetal lobe present in anterior chaetigers..........................................2 – Notopodial prechaetal lobe absent throughout.......3 2 Jaws with three teeth in basal half separated by wide interval from double tooth near apical fang; 5 paragnaths in longitudinal series in area I............. C. moorei – Jaws with four teeth without separated double tooth; 0 or 1 paragnath present in area I............ C. costae 3 Neuropodial heterogomph spinigers absent throughout.................................... C. hircinicola – Neuropodial heterogomph spinigers present throughout............................................4 4 Heterogomph spinigers present among upper neurochaetae around chaetiger 5... C. tokashikiensis sp. nov. – Heterogomph spinigers absent among upper neurochaetae throughout............. C . kumensis sp. nov.