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FIGURES 5–7 in Blind life in the Baltic amber forests: description of an eyeless species of the ground beetle genus Trechus Clairville, 1806 (Coleoptera: Carabidae: Trechini)

FIGURES 5–7. Trechus eoanophthalmus sp.n., holotype. Fig. 5, left elytron (the insertions of the setae are marked by white circles). Fig. 6, left foreleg and middle leg, dorsal view. Fig. 7, general view of the fossil with contours of the amber piece. Abbreviation: ptg= protibial dorsolateral groove.

FIGURES 3–4 in Blind life in the Baltic amber forests: description of an eyeless species of the ground beetle genus Trechus Clairville, 1806 (Coleoptera: Carabidae: Trechini)

FIGURES 3–4. Trechus eoanophthalmus sp.n., holotype. Fig. 3, head (view at an angle from right above), showing markedly transverse micro-meshes on frons, and moderately transverse meshes on neck. For better visualization, the outline of the right mandible is indicated by a dotted line. Fig. 4, head and pronotum, left lateral aspect. Abbreviations: fti = frontal transverse impression; lbp = labial palpus; md = mandible; mx = maxilla; mxp = maxillary palpus; pbs = pronotal basolateral seta; pls = pronotal lateral seta; sos = supraorbital setae.

FIGURES 1–2 in Blind life in the Baltic amber forests: description of an eyeless species of the ground beetle genus Trechus Clairville, 1806 (Coleoptera: Carabidae: Trechini)

FIGURES 1–2. Trechus eoanophthalmus sp.n., holotype. Fig. 1, left lateral aspect. Fig. 2, right lateral aspect.

FIGURE 13 in Blind life in the Baltic amber forests: description of an eyeless species of the ground beetle genus Trechus Clairville, 1806 (Coleoptera: Carabidae: Trechini)

FIGURE 13. Trechus eoanophthalmus sp. n., reconstruction of the external shape in dorsal view. Since the labrum is only hardly visible in the fossil specimen, the assumed shape is indicated by a dotted line.

FIGURES 8–12 in Blind life in the Baltic amber forests: description of an eyeless species of the ground beetle genus Trechus Clairville, 1806 (Coleoptera: Carabidae: Trechini)

FIGURES 8–12. Trechus eoanophthalmus sp.n., holotype; MicroCT images. Fig. 8, negative imprint of head, dorsal view. Fig. 9, negative imprint of elytra and pronotum, dorsal view, and deformed right elytron and abdominal tergites in the cavity of the inclusion. Fig. 10, negative imprint of the inclusion with deformed remains of the beetle body in the cavity of the inclusion, left lateral view. Fig. 11, same, ventral view. Fig. 12, apical portion of elytra (negative imprint), caudal view (the insertions of the setae of the apical triangle are marked by white circles). Abbreviations: as-p = abdominal sternites (deformed positive); at-p = abdominal tergites (deformed positive); cl-p = clypeus (deformed positive); el-p = right elytron (deformed positive); fti = frontal transverse impression; rs = recurrent stria.

Figure 10. Nereis mariellae, holotype parapodia under light microscope. A in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 10. Nereis mariellae, holotype parapodia under light microscope. A, parapodium, chaetiger 1, anterior view. B, parapodium, chaetiger 15, anterior view. C, parapodium, chaetiger 25, anterior view. D, supracicular neurochaetae, chaetiger 1. E, subacicular neurochaetae, chaetiger 1. F, neurochaeta heterogomph falciger. G, notochaetae, chaetiger 36. H, neurochaetae, chaetiger 36. I, notochaeta homogomph spiniger. Scale bars: 500 µm in A–C; 100 µm in D, E, G, H; 50 µm in F, I.

Figure 8 in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 8. Nereis anoculepitoka parapodia of epitokes under light microscope. A–C, G, L, male epitoke. D–F, H, I–K, female epitoke. A, parapodium, chaetiger 1, anterior view. B, parapodium, chaetiger 21, anterior view; arrow points to dorsal contact. C, parapodium, chaetiger 43, anterior view. D, parapodium, chaetiger 2, anterior view. E, parapodium, chaetiger 15, anterior view. F, parapodium, chaetiger 34, anterior view; arrow points to paddle-like homogomph spinigers. G, neurochaetae, parapodium 21. H, neurochaetae, parapodium 30. I, neurochaetae heterogomph falciger, blades thicker and orange. J, neurochaetae heterogomph falciger, blades tips thicker and yellowish. K, notochaetae homogomph falcigers, blades thicker and orange in colour. L, homogomph spiniger with paddle-like blade. Scale bars: 500 µm in A–F, 200 µm in G, H; 50 µm in I, J; 100 µm in K, L.

Figure 6. Nereis anoculepitoka. A in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 6. Nereis anoculepitoka. A, live atoke, paratype 5. B, live male epitoke, paratype 12. C, live male epitoke, paratype 15. Scale bars: 2 mm in A; 5 mm in B, C.

Figure 5. Nereis anoculepitoka, paratype 20 under scanning electron microscope. A in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 5. Nereis anoculepitoka, paratype 20 under scanning electron microscope. A, anterior end, dorsal view. B, heterogomph falciger chaeta. C, cluster of homogomph spiniger chaetae. D, parapodium, chaetiger 32, anterior view. E, homogomph falciger chaeta. F, heterogomph spiniger chaeta. Scale bars: 200 µm in A; 25 µm in B, E; 75 µm in C, F; 500 µm in D.

Figure 13. Nereis saramagoi, under scanning electron microscope. A, B, paratype 18. C, paratype 19. D–J, paratype 2. A in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 13. Nereis saramagoi, under scanning electron microscope. A, B, paratype 18. C, paratype 19. D–J, paratype 2. A, anterior body and midbody, dorsal view. B, anterior end, dorsal view. C, anterior end, ventral view. D, neurochaetae heterogomph falciger, parapodium 18. E, parapodium, chaetiger 18, posterior view. F, notochaeta homogomph spiniger, parapodium 29. G, neurochaetae supracicular heterogomph spinigers, parapodium 18. H, conical paragnaths, area II. I conical paragnath, area II. J, notochaetae homogomph falcigers, parapodium 29. Scale bars: 500 µm in A, E; 200 µm in B, C; 25 µm in D, G, I, J; 75 µm in F, H.

Figure 4. Nereis anoculepitoka, paratype 18 parapodia under light microscope. A in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 4. Nereis anoculepitoka, paratype 18 parapodia under light microscope. A, parapodium, chaetiger 1, anterior view. B, parapodium, chaetiger 23, anterior view. C, parapodium, chaetiger 49, anterior view. D, neurochaetae supra- and subacicular, chaetiger 1. E, notochaetae, parapodia 49. F, neurochaetae, parapodium 41. G, notochaetae homogomph spiniger. H, neurochaetae supracicular heterogomph spiniger. I, notochaetae heterogomph falciger. J, notochaetae heterogomph falciger. Scale bars: 500 µm in A–C; 100 µm in D, E, G; 200 µm in F; 50 µm in H–J.

Figure 3. Nereis anoculepitoka. A, B, D, paratype 8 in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 3. Nereis anoculepitoka. A, B, D, paratype 8; C, paratype 16; E, paratype 18. A, anterior end, dorsal view. B, anterior end, ventral view. C, anterior end, lateral view. D, posterior end, pygidium. E, entire specimen. Scale bars: 1 mm in A–D; 4 mm in E.

Figure 15 in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 15. Nereis shinkai, parapodia of specimen from 'SP3300' site under light microscope. A, parapodium, chaetiger 1, anterior view. B, parapodium, chaetiger 17, anterior view. C, parapodium, chaetiger 36, anterior view. D, neurochaetae supra- and subacicular, chaetiger 1. E, neurochaetae, chaetiger 17. F, notochaeta homogomph spiniger. G, notochaetae chaetiger 36. H, long-bladed neurochaetae heterogomph falciger. I, short-bladed neurochaeta heterogomph falciger. J, notochaeta homogomph falciger. K, neurochaeta heterogomph spiniger. Scale bars: 500 µm in A–C; 100 µm in D, G; 200 µm in E; 50 µm in F, H–K.

Figure 2 in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 2. Phylogenetic analysis of Nereididae, showing the concatenated result of the best tree from Bayesian information (BI) and maximum likelihood (ML) analyses using COI and 16S, with bootstrap values on nodes (BI on left side and ML on right side). Sixty operational taxonomic units (OTUs) from GenBank were used. Bold OTUs used sequences from the present study. The outgroup branch was trimmed for better resolution.

Figure 1 in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 1. Locations of BioSuOr and Alucia lander deployment sites and Shinkai natural whale carcass. The BioSuOr project (Biodiversity and connectivity of benthic communities in organic substrates in the deep southwest Atlantic) sites were named according to the Brazilian state next to deployment (ES, Espírito Santo; RJ, Rio de Janeiro; and SP, São Paulo) and the approximate depths (1500 and 3300 m).

Figure 7. Nereis anoculepitoka parapodia under stereomicroscope. A, atoke. B, male epitoke. C in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 7. Nereis anoculepitoka parapodia under stereomicroscope. A, atoke. B, male epitoke. C, female epitoke. Scale bars: 1 mm in A–C.

Figure 9. Nereis mariellae holotype. A, live specimen. B in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 9. Nereis mariellae holotype. A, live specimen. B, anterior end, dorsal view. C, anterior end, ventral view. D, parapodia, with focus on the randomly distributed pigment spots. E, anterior body and midbody, dorsal view. Tentacular cirri are detached in B, C, E. Scale bars: 5 mm in A, E; 1 mm in B, C; 0.5 mm in D.

Figure 12. Nereis saramagoi, paratype 1 parapodia under light microscope. A in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 12. Nereis saramagoi, paratype 1 parapodia under light microscope. A, parapodium, chaetiger 1, anterior view. B, parapodium, chaetiger 9, anterior view. C, parapodium, chaetiger 34, anterior view. D, neurochaetae supra- and subacicular, chaetiger 1. E, notochaetae, parapodia 34. F, notochaetae homogomph spiniger. G, neurochaeta supracicular heterogomph spiniger. H, neurochaetae, parapodium 16. I, notochaetae homogomph falciger, parapodium 34. J, notochaetae heterogomph falciger, parapodium 28. Scale bars: 250 µm in A; 500 µm in B, C; 100 µm in D, E, H; 50 µm in F, G; 25 µm in I, J.

Figure 14 in Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls

Figure 14. Nereis shinkai, specimens from 'SP3300' site. A, anterior end, dorsal view. B, anterior end, dorsolateral view. C, posterior end, lateral view. D, anterior end, ventral view. E, juvenile, anterior end. Scale bars: 3 mm in A–D; 0.5 mm in E.