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8 results for “Paracentrophyes”
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.
FIGURE 1 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 1. Map showing the collection sites for Paracentrophyes spp. in the Gulf of Mexico.
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