Spinoncaea ivlevi (Shmeleva, 1966), female, robust form (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal, setae on caudal rami are numbered using Roman numerals (seta V on right side missing) D urosome, lateral (seta V on right side missing) E urosome, ventral F leg 5, lateral G caudal setae IV–VI shown separately. Scale bars in μm.

  Part of: Cho K, Park C, Böttger-Schnack R (2021) Taxonomy of three species of the genus Spinoncaea (Copepoda, Oncaeidae) in the North Pacific Ocean with focus on morphological variability. ZooKeys 1043: 147-191. https://doi.org/10.3897/zookeys.1043.64438