| Summary: | FIGURE 4. Prionospio multisetosa sp. nov., paratype (LACM-AHF-POLY 4433): (A) anterior region, dorsal view; (B) left palp removed; (C) anterior region, lateral view; (D) Branchia, chaetiger 3; (E) parapodium, chaetiger 2; (F) parapodium, chaetiger 3; (G) parapodium, chaetiger 4; (H) notopodium, chaetiger 5; (I) parapodium, chaetiger 13; (J) parapodium, chaetiger 31; (K) parapodium, middle chaetiger; (L) parapodium, posterior chaetiger; (M) capillary notochaeta, chaetiger 2; (N) shows the arrangement of the rows of the chaetae of the anterior chaetiger illustrated in Fig. 4A; (O) capillary neurochaeta, chaetiger 3; (P) capillary neurochaeta, chaetiger 14; (Q) neuropodial hooded hook; (R) notopodial hooded hook; (S) sabre chaeta; (T) pygidium, lateral view. Abbreviation: Nuchal organ (No). Scale bars: A–C, T 10 µm; D–M, O–S 5 µm; N 2 µm. Published as part of Delgado-Blas, Víctor Hugo & Peraza, Russell Giovanni Uc, 2024, Two new species of Prionospio (Annelida: Spionidae) from the Northwest and Northeast Atlantic, pp. 69-82 in Zootaxa 5432 (1) on page 76, DOI:10.11646/zootaxa.5432.1.5, http://zenodo.org/record/10898540
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