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FIGURE 8 in An exploration of Echinoderes (Kinorhyncha: Cyclorhagida) in Korean and neighboring waters, with the description of four new species and a redescription of E. tchefouensis Lou, 1934*

FIGURE 8. Diagram of mouth cone (grey shaded area), introvert and placids in Echinoderes microaperturus sp. nov. with indication of inner and outer oral styles, scalid and placid distribution. Placids and trichoscalid plates are symbolized by the black-shaded bent bars and circles around the introvert diagram.

FIGURE 15 in An exploration of Echinoderes (Kinorhyncha: Cyclorhagida) in Korean and neighboring waters, with the description of four new species and a redescription of E. tchefouensis Lou, 1934*

FIGURE 15. Scanning electron micrographs showing overview and details in head and trunk morphology of Echinoderes tchefouensis Lou, 1934: A, ventrolateral overview of whole specimen; B, detail of head, showing introvert section 4; C, detail of head showing mouth cone; D, segment 8, lateral view; E, segment 2, dorsolateral view; F, segments 1 and 2, ventral view; G, segment 11 in female, dorsal view; H, segments 11 in male, lateral view. Abbreviations: fp, fringed protuberance; gco II, glandular cell outlet type 2; las, lateral accessory spine; ld, laterodorsal sensory spot; ldt, laterodorsal tubule; ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvs, lateroventral spine; md, middorsal sensory spot; mds, middorsal spine; ofs, outer fringe of style basis; oos, outer oral styles; ps, penile spines; sc, scalids; sd, subdorsal sensory spot; sp, spinoscalids; te, tergal extension; tr, trichoscalid; trp, trichoscalid plate; vl, ventrolateral sensory spot. Digits after the labels refer to the introvert ring numbers. Lambda symbols Λ mark attachment point of scalids.

FIGURE 14 in An exploration of Echinoderes (Kinorhyncha: Cyclorhagida) in Korean and neighboring waters, with the description of four new species and a redescription of E. tchefouensis Lou, 1934*

FIGURE 14. Light micrographs showing details in neck and trunk morphology of Echinoderes tchefouensis Lou, 1934, displaying male neotype, ZMUC KIN-468 (A–B, D, G), and two other female non-types, ZMUC KIN-469 (C), ZMUC KIN-474 (E–F): A, neck and segments 1 to 2, dorsal view; B, neck and segments 1 to 2, ventral view; C, segments 5 to 8, dorsal view; D, segment 8, focused on laterodorsal gco2; E, segments 7 to 9, ventral view; F, segments 10 to 11 in female, dorsal view; F, segments 10 to 11 spines in male, ventral view. Abbreviations: fp, fringed protuberance; gco I/II, glandular cell outlet type 1/2; las, lateral accessory spine; ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvs, lateroventral spine; md, middorsal sensory spot; mds, middorsal spine; ps, penile spines; sd, subdorsal sensory spot; si, sieve plate; te, tergal extension; trp, trichoscalid plate; vl, ventrolateral sensory spot.

FIGURE 3 in An exploration of Echinoderes (Kinorhyncha: Cyclorhagida) in Korean and neighboring waters, with the description of four new species and a redescription of E. tchefouensis Lou, 1934*

FIGURE 3. Light micrographs showing details in neck and trunk morphology of Echinoderes aspinosus sp. nov., displaying female holotype, NIBR Acc. No. INBRIV0000245081 (A, C–G) and male allotype, ZMUC KIN-538 (B, H): A, detail of extended mouth cone; B, neck and segments 1 and 2, dorsal view; C, neck and segments 1 and 2, ventral view; D, ventral overview of holotype; E, Segments 2 to 5, ventral view; F, Segments 8 and 9, ventral view; G, Segment 11 and terminal spines in female; H, Segment 11 and terminal spines in male. Abbreviations: ltas, lateral terminal accessory spine; lts, lateral terminal spine; mdp, middorsal placid; mvp, midventral placid; oos, outer oral style; pc, pharyngeal crown; pe, penile spine; pf, pectinate fringe; se, sternal extension; set, seta; te, tergal extension; trp, trichoscalid plate.

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Fig. 2 in The genus Setaphyes (Kinorhyncha, Pycnophyidae) in European waters: Redescription of Setaphyes dentatus (Reinhard, 1881) and Setaphyes kielensis (Zelinka, 1928), including notes on morphometrics, sexually dimorphic features and reproduction of the genus

Fig. 2. Line art illustration of Setaphyes dentatus. A: Male, ventral view; B: Male, dorsal view; C: Female, segments 1–3, ventral view; D: female, segments 9–11, ventral view. Scale bar: 100 μm. Abbreviations: ap, apodeme; co, cuticular ornamentation, reticular, net-like structure; cr, cuticular ridge; cs, cuticular scar; cw, cuticular wrinkles; dpl, dorsal placid; ica, intracuticlular atria; ldse, laterodorsal setae; ldss, laterodorsal sensory spot; lts, lateral terminal spine; lvse, lateroventral setae; mde, middorsal elevation; mdp, middorsal process; ms, muscular scar; ne, nephridiopore; pcr, patch of cuticular ridges; pdse, paradorsal setae; pdss, paradorsal sensory spot; ps, penile spine; sdss, subdorsal sensory spot; spf, secondary pectinate fringe; vlse, ventrolateral setae; vlss, ventrolateral sensory spot; vmse, ventromedial setae; vmtu, ventromedial tube; vmss, ventromedial sensory spot; vpl, ventral placid.

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Fig. 5 in The genus Setaphyes (Kinorhyncha, Pycnophyidae) in European waters: Redescription of Setaphyes dentatus (Reinhard, 1881) and Setaphyes kielensis (Zelinka, 1928), including notes on morphometrics, sexually dimorphic features and reproduction of the genus

Fig. 5. SEM photographs of the head of Setaphyes dentatus (ZMB 12751). A: Introvert sector 1 (midventral); B: introvert sector 10 (ventrolateral); C: detail of introvert ring 01 showing the primary spinoscalid morphology; D: detail of neck (dorsal view) and anterior half of segment 1 tergal plate with focus on its cuticular ornamentation. Abbreviations: bs, basal sheath; co, cuticular ornamentation; dpl, dorsal placid; ep, end-piece of spinoscalid; psp, primary spinoscalid; S1, segment 1; sp, spinoscalid (followed by number of corresponding ring); ts, trichoscalid. Lambda symbols (Λ) mark attachment points of scalids.

Fig. 2 in New data on the Echinoderes coulli-group (Kinorhyncha: Cyclorhagida: Echinoderidae): A new species from New Caledonia mangroves, and a redescription of E. bengalensis (Timm, 1958)

Fig. 2. Light micrographs showing overviews and details of (A-C, F-H) male holotype, MNHN-655Ma, and (D-E, I) male paratype, NHMD-1175697, of Echinoderes lapitaorum sp. nov. from New Caledonia. (A) Lateral overview. (B) Segments 1 to 3, lateral view. (C) Segments 4 to 6, lateral view. (D) Segments 5 to 6, lateral view, showing detail of lateroventral tube attachment on segment 5. (E) Detail of sieve plate on segment 9. (F) Segments 7 to 9, lateral view. (G) Detail showing laterodorsal tube on segment 10 and penile spines. (H) Detail showing conspicuous shape of dorsal penile spine. (I) Segments 9 to 11, lateral view, showing male sexual dimorphism. Abbreviations: lat, lateral accessory tube; ldgco2fr, laterodorsal fringed glandular cell outlet type 2; ldss, laterodorsal sensory spot; ldt, laterodorsal tube; lts, lateral terminal spine; lvgco1, sublateral glandular cell outlet type 1; lvt, lateroventral tube; mlss, midlateral sensory spot; pdgco2fr, paradorsal fringed glandular cell outlet type 2; pdss, paradorsal sensory spot; pe, penile spine; sdgco2fr, subdorsal fringed glandular cell outlet type 2; sdss, subdorsal sensory spot; slgco2fr, sublateral fringed glandular cell outlet type 2; slsi, sublateral sieve plate; vlss, ventrolateral sensory spot.

Fig. 3 in Expanding the Echinoderes coulli group (Kinorhyncha: Cyclorhagida) with a new species from the Chuuk Islands, Micronesia

Fig. 3. Light micrographs (DIC) showing traits in Echinoderes inaequalis sp. nov. Male paratype NHMD-1176545 (A, B, D, E, H), female holotype NHMD-1176540 (C, K, I) female paratype NHMD-1176543 (F, G), and male paratype NHMD-1176542 (J). (A) Male overview, ventral view. (B) Segments 1–2, ventral view. (C) Segments 1–2, dorsal view. (D) Segments 5–7, ventral view. (E) Segments 4–5, dorsal view. (F) Segments 7–8, lateroventral view. (G) Segments 6–7, dorsolateral view. (H) Male, segments 10–11 ventral view. (I) Female, segment 11, ventral view. (J) Segments 9–10, ventral view. (J') Detail of sieve plate. (K) Segment 8, focused on laterodorsal area. Abbreviations: ldgco2, laterodorsal glandular cell outlet type 2; ldss, laterodorsal sensory spot; ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvgco1, lateroventral glandular cell outlet type 1; lvt, lateroventral tube; mdgco1, middorsal glandular cell outlet type 1; mlgco2, midlateral glandular cell outlet type 2; mlt, midlateral tube; mvp, midventral placid; pdgco1, paradorsal glandular cell outlet type 1; pe, penile spine; sdgco2, subdorsal glandular cell outlet type 2; sdss, subdorsal sensory spot; sdt, subdorsal tube; si, sieve plate; te, tergal extension; tp, trichoscalid plate; vlgco2, ventrolateral glandular cell outlet type 2; vmgco1, ventromedial glandular cell outlet type 1; vmss, ventromedial sensory spot. Circles indicate the position of glandular cell outlets type 1. Dashed circles indicate the position of sensory spots. Digits after abbreviations refer to segment number.

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Fig. 8 in The genus Setaphyes (Kinorhyncha, Pycnophyidae) in European waters: Redescription of Setaphyes dentatus (Reinhard, 1881) and Setaphyes kielensis (Zelinka, 1928), including notes on morphometrics, sexually dimorphic features and reproduction of the genus

Fig. 8. SEM photographs of female (ZMB 12746: G), male (ZMB 12747: A, C, F) and adults of indeterminate sex (ZMB 12748: B, D; ZMB 12750: E; ZMB 12745: H) of Setaphyes dentatus from the Atlantic and the Mediterranean coasts of the Iberian Peninsula and from the Black Sea coast of Türkiye, Huelva (G), Algeciras (A–F), Türkiye (H) populations. A: ventral view of segments 1–2; B: left side of the tergal plate, segments 5–6; C: right side of segments 5–7; D: left side of the tergal plate, segment 5, laterodorsal setae and sensory spot; E: laterodorsal side of the tergal plate, segment 7; F: right lateroventral seta of segment 6; G: ventral view of segment 10; H: left side of the tergal plate, segment 10. Abbreviations: ldse, laterodorsal setae; lts, lateral terminal spine; lvse, lateroventral setae; mde, middorsal elevation; mdp, middorsal process; pcr, patch of cuticular ridges; pdse, paradorsal setae; vmtu, ventromedial tube. Numbers after abbreviations indicate the corresponding segment. Dashed circles mark sensory spots.

Fig. 7 in New data on the Echinoderes coulli-group (Kinorhyncha: Cyclorhagida: Echinoderidae): A new species from New Caledonia mangroves, and a redescription of E. bengalensis (Timm, 1958)

Fig. 7. Light micrographs showing epibionts, ingested diatoms and additional details of (A) female topotype, USNM-235522 27), (B) female topotype, USNM-235522 42, (C) male topotype, USNM- 235522 47, (E) male topotype, USNM-235522 69, (F) female topotype, USNM-1182922 25, of Echinoderes bengalensis from Sonadia Island, Bangladesh, and for comparison of (D) female holotype, ZMB- 11400, of Echinoderes applicitus from Java, Indonesia. (A) Lateral overview of specimen with bacterial epibionts attached its posterior segments. (B) Segments 8 to 11, lateral view, of specimen with numerous unidentified protist epibionts attached in the intersection between segments 8 and 9. (C) Segments 2 to 7 of specimen with at least three different kinds of ingested diatoms. (D) Segments 10 to 11, dorsal view, of female E. applicitus. (E) Segments 9 to 11, lateral view, of specimens with ingested diatoms exiting its hindgut. (F) Segments 6 to 8, of specimen with at least two different kinds of ingested diatoms. Abbreviations: bac, bacteria; dia, diatoms; met, mid- and subdorsal extension of tergal plate of segment 10; pro, protists; te, tergal extensions.

Fig. 4 in Expanding the Echinoderes coulli group (Kinorhyncha: Cyclorhagida) with a new species from the Chuuk Islands, Micronesia

Fig. 4. Scanning electron micrographs (SEM) showing overviews and details of Echinoderes inaequalis sp. nov. (A) Male, lateroventral overview. (B) Segments 1–2 ventral view. (C) Segments 2–4, dorsal view. (D) Segments 5–6, lateroventral view. (E) Segment 2, laterodorsal view. (F) Detail of segment 8, lateral view. (G) Detail of segment 5, lateroventral view. (H) Segments 6–7, middorsal view. (I) Detail of sieve plate. (J) Female, segments 10–11, dorsal view. (K) Segments 9–11, ventral view. (L) Male, detail of penile spines, lateral view. (M) Male, detail of penile spines and laterodorsal tube, laterodorsal view. Abbreviations: ldgo2, laterodorsal glandular cell outlet type 2; ldss, laterodorsal sensory spot; ldt, laterodorsal tube; ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvgco1, lateroventral glandular cell outlet type 1; lvt, lateroventral tube; mds, middorsal spine; mdss, middorsal sensory spot; mlgco2, midlateral glandular cell outlet type 2; mlss, midlateral sensory spot; mlt, midlateral tube; pe, penile spine; sdgco2, subdorsal glandular cell outlet type 2; sdss, subdorsal sensory spot; sdt, subdorsal tube; si, sieve plate; spf, secondary pectinate fringe; te, tergal extension; vlgco2, ventrolateral glandular cell outlet type 2; vlss, ventrolateral sensory spot; vmgco1, ventromedial glandular cell outlet type 1; vmss, ventromedial sensory spot. Circles indicate the position of glandular cell outlets type 1. Dashed circles indicate the position of sensory spots. Digits after abbreviations refer to segment number.

Fig. 4 in Towards a standardisation of morphological measurements in the phylum Kinorhyncha

Fig. 4. Schematic representation of the total trunk length and cumulative length. Abbreviations: CL, cumulative length; SL, segment length, including the number of ∑11 the segment; TL, total trunk length; formula: i=1SiL = S1L + S2L + … + S11 L

Fig. 3 in Towards a standardisation of morphological measurements in the phylum Kinorhyncha

Fig. 3. Schematic representation of measurements in Echinoderidae and Pycnophyidae. A: two consecutive trunk segments of a generalised Echinoderidae, showing the way to measure the length of a segment as well as the way to take a spine length; B: Representation of generalised anterior body region of a species of Echinoderidae with detail of the neck placids to show the recommended way to take the placid measurements (length and width); C: Same representation with a species of Pycnophyidae. Abbreviations: SL, segment legth; SPL, spine length.