Notomastus sunae sp. nov., holotype. A thorax and anterior abdomen (14 chaetigers) in ventrolateral view B thorax and anterior abdomen (18 chaetigers) in dorsal view C anterior end in lateral view, showing eyespots and papillae D chaetigers 10–19 in ventrolateral view, showing transition between thorax and abdomen E far posterior abdomen in dorsal view, showing notopodia with simple epithelial extensions F abdominal hooded hooks. Shading on B and D indicates methyl green staining. Scale bars: 1 mm (A–E); 20 μm (F).

 
 
  Part of: Lin J-H, García-Garza ME, Lyu M-X, Wang J-J (2020) A new species of Notomastus (Annelida, Capitellidae) from southern China, with remarks on its morphology and distribution. ZooKeys 946: 1-16. https://doi.org/10.3897/zookeys.946.50662