Promastobranchus variabilis sp. nov., holotype A thorax and anterior abdomen, lateral view B anterior end, ventro-lateral view C chaetigers 9–16, lateral view D middle-posterior abdomen, dorso-lateral view E posterior end with anal cirri, ventral view F abdominal hooded hook of chaetiger 70. Shading on A, C–E indicates methyl green stain. Scale bars: 1 mm (A–E); 20 μm (F).

 
 
  Part of: Lin J-H, García-Garza ME, Mou J-F, Lin H-S (2023) Description of a new Promastobranchus species (Annelida, Capitellidae) from Chinese coasts, with molecular evidence for intraspecific variation in the number of thoracic chaetigers. ZooKeys 1174: 1-14. https://doi.org/10.3897/zookeys.1174.106624