FIGURE 4 in A review of the worldwide distribution of Marenzelleria viridis, with new records for M. viridis, M. neglecta and Marenzelleria sp. (Annelida: Spionidae)

FIGURE 4. Morphology of Marenzelleria sp. from Koluktoo Bay (Baffin Is., Nunavut, Canada). A–D, anterior ends, dorsal view. E, bidentate hooded hook from a neuropodium of a middle chaetiger. Arrows showing posterior ends of U-shaped nuchal organs. Scale bars: A – 300 µm; B, C – 200 µm; D – 50 µm; E – 5 µm. A–E – formalin-fixed specimens. A – MIMB 40927; B, D – MIMB 42134; C, E – MIMB 40928.Published as part of Radashevsky, Vasily I., Pankova, Victoria V., Malyar, Vasily V., Cerca, José & Struck, Torsten H., 2021, A review of the worldwide distribution of Marenzelleria viridis, with new records for M. viridis, M. neglecta and Marenzelleria sp. (Annelida: Spionidae), pp. 353-372 in Zootaxa 5081 (3) on page 364, DOI: 10.11646/zootaxa.5081.3.3, http://zenodo.org/record/577568