FIGURE 4 in Taking a closer look: an SEM review of Levinsenia species (Polychaeta: Paraonidae) reported from California

FIGURE 4. Levinsenia multibranchiata (Hartman, 1957), paratype AHF-LACM POLY 648, adult: (A) prostomium with palpode, nuchal organs, dorsal view; (B) branchial region, dorsal view; (C) notopodial glandular pores, lateral view; (D) acicular neurochaetae with fibrils, lateral view. Abbreviations: no, nuchal organ; pa, palpode; pl, post-chaetal lobe; sp, sensory pores. Scale bars: A, 100 µm; B, 300 µm; C, 20 µm; D, 30 µm.