Notomastus koreanus sp. n. A−C photomicrographs A anterior end in left lateral view (showing methyl green staining reaction, MABIKNA00066311) B chaetigers 9–15 in left lateral view (MABIKNA00066396) C posterior end (MABIKNA00066396) D–G scanning electron micrographs (using additional specimens from type locality) D anterior 6 thoracic segments in left lateral view E capillary chaetae of chaetiger 4 F–G abdominal hooded hooks in frontal view. Abbreviations: cc, capillary chaetae; Ch, chaetiger; genP, genital pore; hh, hooded hooks; lo, lateral organ; mf, main fang; neu, neuropodium; no, notopodium; per, peristomium; pro, prostomium; prob, proboscis; transition, transition between thorax and abdomen.

 
 
  Part of: Jeong M-K, Soh HY, Wi JH, Suh H-L (2018) A new Notomastus (Annelida, Capitellidae) species from Korean waters, with genetic comparison based on three gene markers. ZooKeys 754: 141-155. https://doi.org/10.3897/zookeys.754.23655