Methyl green staining patterns. Notomastus bermejoi sp. nov. A holotype (CNAP-POH-17-002) B–E paratypes (CNAP-POP-005 to 008) F additional material (CNAP-PO-036/GCA-CS-2006) G–I Notomastus americanus Day, 1973 (= N. hemipodus Hartman, 1945), holotype (USNM43118) A thoracic region, lateral view B thoracic and anterior abdominal regions, ventral view C–F thoracic and anterior abdominal regions, lateral view G thoracic and anterior abdominal regions, lateral view H anterior region, lateral view I abdominal region, ventral view. Scale bars: 0.5 mm (A–F); 1 mm (G–I).

 
 
  Part of: Hernández-Alcántara P, García-Garza ME, Solís-Weiss V (2022) Notomastus bermejoi, a new species of Capitellidae (Annelida, Polychaeta) from the Gulf of California, with morphological remarks on species with hooks in thoracic chaetigers. ZooKeys 1102: 43-58. https://doi.org/10.3897/zookeys.1102.83198