Find research datasets worth reusing

FIGURE 5 in Two new species of Dracoderes (Kinorhyncha: Dracoderidae) from the Ryukyu Islands, Japan, with a molecular phylogeny of the genus

FIGURE 5. Dracoderes snufkini sp. nov., scanning electron micrographs. A, segments 5–7, lateral view; B, segments 7–10, lateral view; C, segments 5–9, lateroventral view; D, segments 8 and 9, lateral view; E, segments 9–11, ventral view. Dashed circles indicate sensory spots. Abbreviations: lat, lateral accessory tubule; lvs, lateroventral acicular spine; lvt, lateroventral tubule; mds, middorsal acicular spine; ne, nephridial pore; pds, paradorsal acicular spine; ps, penile spine.

FIGURE 3 in Two new species of Dracoderes (Kinorhyncha: Dracoderidae) from the Ryukyu Islands, Japan, with a molecular phylogeny of the genus

FIGURE 3. Dracoderes snufkini sp. nov., Nomarski photomicrographs. A–E, G, holotype, female (ZIHU-04984); F, allotype, male (ZIHU-04985). A, whole animal; B, segments 1–4, ventral view; C, segments 4–11, ventral view; D, segments 3–10, dorsal view; E, segments 1–4, dorsal view; F, segments 10 and 11 of male, ventral view; G, segments 10 and 11 of female, ventral view. Dashed circles indicate sensory spots. Abbreviations: cf, cuticular folding; go, gonopore; lts, lateral terminal spine; lvs, lateroventral acicular spine; lvt, lateroventral tubule; mds, middorsal acicular spine; pds, paradorsal acicular spine; pf, primary pectinate fringe; pl, placid; ps, penile spine; s3, segment 3; s6, segment 6; s9, segment 9; sus, subcuticular structure.

FIGURE 1 in Two new species of Dracoderes (Kinorhyncha: Dracoderidae) from the Ryukyu Islands, Japan, with a molecular phylogeny of the genus

FIGURE 1. Map of Japan, with enlargements indicating the sampling sites. A, Main island of Okinawa; B, Iriomote and Ishigaki Islands.

FIGURE 2 in Two new species of Dracoderes (Kinorhyncha: Dracoderidae) from the Ryukyu Islands, Japan, with a molecular phylogeny of the genus

FIGURE 2. Dracoderes snufkini sp. nov., camera lucida drawings. A, B, holotype, female (ZIHU-04984), whole animal, dorsal and ventral views, respectively; C, D, allotype, male (ZIHU-04985), segments 8–11, dorsal and ventral views, respectively. Asterisks indicate sensory spots. Abbreviations: cf, cuticular folding; ha, hair; lat, lateral accessory tubule; lts, lateral terminal spine; lvs, lateroventral acicular spine; lvt, lateroventral tubule; mds, middorsal acicular spine; pds, paradorsal acicular spine; pl, placid; ps, penile spine; ss, sensory spot; te, tergal extension.

FIGURE 8 in Description of a new kinorhynch species, Paracentrophyes sanchezae n. sp. (Kinorhyncha: Allomalorhagida) from the Gulf of Mexico, with differential notes on one additional, yet undescribed species of the genus

FIGURE 8. Scanning electron micrographs showing overviews and details in head and trunk morphology of female Paracentrophyes sp. A. Lateroventral overview. B. Anterior part of segment 1, lateral view. C. Segments 4 and 5, lateral view. D. Segments 5 to 7, lateral view. E. Segments 7 to 9, ventrolateral view. F. Segments 10 to 11 with attached epibionts, ventrolateral view. G. Segments 4 to 8 with attached epibionts, lateroventral view. H. Segments 9 to 11, lateroventral view. Abbreviations: lts, lateral terminal spine; mds10–11, middorsal spine followed by segment number; pds, paradorsal seta; pls, paralateral seta; vls, ventrolateral seta.

FIGURE 7 in Description of a new kinorhynch species, Paracentrophyes sanchezae n. sp. (Kinorhyncha: Allomalorhagida) from the Gulf of Mexico, with differential notes on one additional, yet undescribed species of the genus

FIGURE 7. Light micrographs showing overviews and details trunk morphology of the only specimen of Paracentrophyes sp. available for LM, female. A. Ventrolateral overview. B. Segment 1, ventrolateral view. C. Segments 10 and 11, focused on middorsal spines (right) and one lateral terminal spine (left). D. Segments 10 and 11, focused on other lateral terminal spine and sternal plates. Abbreviations: isf, incomplete sternal fissures; lts, lateral terminal spine; mds10–11, middorsal spine followed by segment number; vm3, ventromedial sensory spot type 3.

FIGURE 5 in Description of a new kinorhynch species, Paracentrophyes sanchezae n. sp. (Kinorhyncha: Allomalorhagida) from the Gulf of Mexico, with differential notes on one additional, yet undescribed species of the genus

FIGURE 5. Scanning electron micrographs showing overviews and details in head and trunk morphology of male paratypes ZMUC KIN-1081 (B–K) and ZMUC KIN-1082 (A) of Paracentrophyes sanchezae n. sp. A. Ventral overview. B. Right, lateroventral overview. C. Mouth cone, centered at large outer oral style anterior to introvert sector 3; note that small outer oral style anterior to sector 4 has broken off its base (marked with *); inset shows close-up of fringed style bases; scale bar in inset = 5 µm. D. Introvert sectors 4 and 5. E. Detail showing posterior part of sternal plate on segment 11; inset shows midterminal sensory (?) structure. F. Segment 1, ventral view. G. Segment 1, lateral view. H. Segments 6 to 9, lateral view. I. Trunk segments 10 to 11, ventral view. J. Trunk segments 10 to 11, dorsolateral view. K. Trunk segments 9 to 11, lateral view. Abbreviations: fob, fringed outer oral style base; ld, laterodorsal sensory spot type 1; lts, lateral terminal spine; mdp9, middorsal process on segment 9; mds10-11, middorsal spine followed by segment number; mt, midterminal sensory (?) structure; oos, outer oral style; pds, paradorsal seta; pls, paralateral seta; ps10-11, penile spine followed by segment number; psp, primary spinoscalid; sd1/3, subdorsal sensory spot type 1 or 3; sec4/5, introvert sectors 4 and 5; sp2–5, spinoscalids of Rings 2 to 5; tsc, trichoscalid; vl, ventrolateral sensory spot type 1; vls, ventrolateral seta; vm1/3, ventromedial sensory spot type 1 or 3.

FIGURE 4 in Description of a new kinorhynch species, Paracentrophyes sanchezae n. sp. (Kinorhyncha: Allomalorhagida) from the Gulf of Mexico, with differential notes on one additional, yet undescribed species of the genus

FIGURE 4. Light micrographs showing overviews and details trunk morphology of female holotype ZMUC KIN-1014 (A–H, J, K) and male paratype ZMUC KIN-1015 (I, L) of Paracentrophyes sanchezae n. sp. A. Dorsal overview. B. Ventral overview. C. Segments 1 and 2, dorsal view. D. Segments 1 and 2, ventral view. E. Detail showing left sternal plates and midlateral processes of segments 3 and 4. F. Detail showing right sternal plates and midlateral processes of segments 5 and 6. G. Same as (F) but focused slightly deeper into the ventral cuticle. H. Segment 11 in female, dorsal view. I. Segments 10 and 11 in male, dorsal view. J. Segments 10 and 11 in female, focused medially in specimen. K. Segments 10 and 11 in female, ventral view. L. Segments 10 and 11 in male, ventral view. Abbreviations: gco, glandular cell outlet; isf, incomplete sternal fissures; lts, lateral terminal spine; mdp, middorsal process followed by segment number; mds10-11, middorsal spine followed by segment number; mlp, midlateral process; msj, midsternal junction; mtp, midterminal process; pls, paralateral seta; ps10-11, penile spine followed by segment number; sd3, subdorsal sensory spot type 3; vls, ventrolateral seta; vm3, ventromedial sensory spot type 3.

FIGURE 6 in Description of a new kinorhynch species, Paracentrophyes sanchezae n. sp. (Kinorhyncha: Allomalorhagida) from the Gulf of Mexico, with differential notes on one additional, yet undescribed species of the genus

FIGURE 6. Comparative morphology of the segment 1 sternal plate in species of Paracentrophyes and Mixtophyes, visualized with light microscopy (A–C, F, G) and scanning electron microscopy (D–E, H, I). Arrows on light microscope images indicate intracuticular lines, forming partial differentiation of the sternal plates. On the scanning electron micrographs, the arrows show foldings in the cuticle, suggesting the presence of intracuticular lines. Type status and museum catalogue numbers for LM specimens appear in parentheses after each species name. A. Paracentrophyes quadridentatus (non-type, ZMUC KIN-107). B. Paracentrophyes praedictus (allotype, USNM 69988). C. Paracentrophyes anurus (holotype, ZMUC KIN-341). D. P. quadridentatus. E. P. anurus. F. Mixtophyes abyssalis (holotype, ZMB 11516). G. Paracentrophyes sanchezae n. sp. (paratype, ZMUC KIN-1015). H. M. abyssalis. G. P. sanchezae n. sp.

FIGURE 3 in Description of a new kinorhynch species, Paracentrophyes sanchezae n. sp. (Kinorhyncha: Allomalorhagida) from the Gulf of Mexico, with differential notes on one additional, yet undescribed species of the genus

FIGURE 3. Diagram of mouth cone (grey area), introvert and placids in Paracentrophyes sanchezae n. sp., showing distribution of outer oral styles, spinoscalids, trichoscalids and placids. The table below shows the scalid arrangement by sector (S1 to S10), and summarized scalid numbers by rings and sectors. Question marks indicate that the occurrences of eventual inner oral styles are uncertain; some scalids could not be observed, but their expected positions inferred from the usual introvert symmetry patterns are indicated in grey tone.

FIGURE 2 in Description of a new kinorhynch species, Paracentrophyes sanchezae n. sp. (Kinorhyncha: Allomalorhagida) from the Gulf of Mexico, with differential notes on one additional, yet undescribed species of the genus

FIGURE 2. Line art illustration of Paracentrophyes sanchezae n. sp. A. Female, dorsal overview. B. Female, ventral overview. C. Male, segments 10 to 11, dorsal view. D. Male, segments 10 to 11, ventral view. Abbreviations: gco, glandular cell outlet; isf, incomplete sternal fissures; ld, laterodorsal sensory spot type 1; lts, lateral terminal spine; ma, muscle attachment site; mdp, middorsal process; mds10–11, middorsal spine followed by segment number; mlp, midlateral process; mtp, midterminal process; pds, paradorsal seta; pl, placid; pls, paralateral seta; ps10–11, penile spine followed by segment number; sd1/3, subdorsal sensory spot type 1 or 3; vls, ventrolateral seta; vm1/3, ventromedial sensory spot type 1 or 3. Setae drawn with dashed lines did not occur consistently in all examined specimens.

Fig. 9 in New Echinoderes (Kinorhyncha: Cyclorhagida) from Mexico: Molecular barcoding demonstrate species delimitation between highly similar morphospecies

Fig. 9. Light micrographs of cuticles from paratypes and hologenophores mounted after DNA extraction and COI sequencing. (A–B) Echinoderes horni, NHMD- 1176472, GenBank Acc. No. OP617666. (C–D) Echinoderes wilberti sp. nov., NHMD- 1176460, GenBank Acc. No. OP617672. (A) Dorsal overview. (B) Segments 1 to 6, dorsal view. (C) Dorsal overview. (D) Segments 1 to 6, dorsal view. Arrows indicate subdorsal tubes on segment 2.

Fig. 3 in New Echinoderes (Kinorhyncha: Cyclorhagida) from Mexico: Molecular barcoding demonstrate species delimitation between highly similar morphospecies

Fig. 3. Diagram of mouth cone (grey area), introvert and placids in Echinoderes abeli sp. nov., outer oral styles (diamonds), primary scalids (triangles), spinoscalids (open circles), and trichoscalids (stars), with positions of trichoscalid plates and placids indicated. Table shows the scalid arrangement by sector; single-lined boxes mark quincunxes, double-lined boxes mark "double diamonds", question mark indicates unknown information.

Fig. 1 in New Echinoderes (Kinorhyncha: Cyclorhagida) from Mexico: Molecular barcoding demonstrate species delimitation between highly similar morphospecies

Fig. 1. Maps showing (A) the position of areas of study in Mexico (B) sampling stations at Islas Marias with asterisks marking St. 8 y St.12, and (C) sampling stations in Quintana Roo with inset showing zoom of stations in Xcalak.

Fig. 6 in New Echinoderes (Kinorhyncha: Cyclorhagida) from Mexico: Molecular barcoding demonstrate species delimitation between highly similar morphospecies

Fig. 6. Line art illustrations of Echinoderes wilberti sp. nov. (A) Female, dorsal view. (B) Female, ventral view. (C) Segments 10 to 11 in male, dorsal view. (D) Segments 10 to 11 in male, ventral view. Abbreviations: lat, lateral accessory tube; ldss, laterodorsal sensory spot; ldt, laterodorsal tube; ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvgco1, lateroventral glandular cell outlet type 1; lvs, lateroventral spine; lvt, lateroventral tube; mdgco1, middorsal glandular cell outlet type 1; mlss, midlateral sensory spot; pdgco1, paradorsal glandular cell outlet type 1; pe, penile spines; pvb, paraventral bristles; sdss, subdorsal sensory spot; sdt, subdorsal tube; vlss, ventrolateral sensory spot; vmgco1, ventromedial glandular cell outlet type 1; vmss, ventromedial sensory spot.

Fig. 5 in New Echinoderes (Kinorhyncha: Cyclorhagida) from Mexico: Molecular barcoding demonstrate species delimitation between highly similar morphospecies

Fig. 5. Scanning electron micrographs showing overviews and details of Echinoderes abeli sp. nov. (A) Dorsal overview. (B) Ventral overview. (C) Mouth cone, dorsal view. (D) Introvert sector 2 (paraventral). (E) Segments 1 to 2, dorsal view. (F) Segment 1 to 2, ventral view. (G) Segments 7 to 8, lateral view. (H) Segments 2 to 4, lateral view; inset shows close-up of glandular cell outlet type 2. (I) Segments 10 to 11, dorsal view, showing female sexual dimorphism. (J) Segments 10 to 11, ventral view, showing female sexual dimorphism. (K) Segments 10 to 11, laterodorsal view, showing female sexual dimorphism; inset shows close-up of laterodorsal tube. Abbreviations: ldss, laterodorsal sensory spot; ldt, laterodorsal tube; ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvt, lateroventral tube; mdss, middorsal sensory spot; mlt, midlateral tube; oos, outer oral styles; pdss, paradorsal sensory spot; pr, protuberance; psp, primary spinoscalid; sdgco2, subdorsal glandular cell outlet type 2; sdss, subdorsal ss; slt, sublateral tube; sp, spinoscalid followed by introvert ring number; tr, trichoscalid; vlss, ventrolateral sensory spot; vmss, ventromedial sensory spot. Digit after abbreviation in lvt refer to segment number.

Fig. 10 in New Echinoderes (Kinorhyncha: Cyclorhagida) from Mexico: Molecular barcoding demonstrate species delimitation between highly similar morphospecies

Fig. 10. Line art illustrations of Echinoderes horni Higgins, 1983. (A) Female, dorsal view. (B) Female, ventral view. (C) Segments 10 to 11 in male, dorsal view. (D) Segments 10 to 11 in male, ventral view. Abbreviations: lat, lateral accessory tube; ldss, laterodorsal sensory spot; ldt, laterodorsal tube; ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvgco1, lateroventral glandular cell outlet type 1; lvs, lateroventral spine; lvt, lateroventral tube; mdgco1, middorsal glandular cell outlet type 1; mlss, midlateral sensory spot; pdgco1, paradorsal glandular cell outlet type 1; pe, penile spines; pvb, paraventral bristles; sdss, subdorsal sensory spot; vlss, ventrolateral sensory spot; vmgco1, ventromedial glandular cell outlet type 1; vmss, ventromedial sensory spot.

Fig. 12 in New Echinoderes (Kinorhyncha: Cyclorhagida) from Mexico: Molecular barcoding demonstrate species delimitation between highly similar morphospecies

Fig. 12. Confocal laser micrographs of Echinoderes horni (NHMD-1176472) showing focal overview sections, from most dorsal in (A) and a deeper focus through (B) to (C). Sensory spots are indicated by full circles, and glandular cell outlets type 1 by dashed circles.

opennotspecifiedNov 2022View details →

Fig. 13 in Two new species of the Echinoderes coulli-group (Kinorhyncha: Cyclorhagida: Echinoderidae) from a low human-impacted mangrove swamp in French Guiana (western Atlantic Ocean)

Fig. 13. Scanning electron micrographs of additional specimens of Echinoderes guianensis sp. nov. showing trunk segments and details of cuticular appendages. A: Ventrolateral to ventromedial view of cuticular plates of segments 1–2; B: lateral view of segments 3–6; C: lateroventral tube of segment 5; D: lateroventral spine of segment 6; E: sublateral spine and droplet-shaped sensory spot of segment 7; F: subdorsal droplet-shaped sensory spots of segment 9; G: right sternal plates of segments 5–6; H: right sternal plates of segments 7–8; I: midlateral droplet-shaped sensory spot and sublateral nephridiopore of segment 9. Abbreviations: lvt, lateroventral tube; lvs, lateroventral spine; ms, muscular scar; droplet-shaped sensory spots are marked with teardrop-like figures.