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FIGURE 7 in Description and biological observations on a new species of deepwater symphurine tonguefish (Pleuronectiformes: Cynoglossidae: Symphurus) collected at Volcano – 19, Tonga Arc, West Pacific Ocean

FIGURE 7. In situ photographs of three individuals of Symphurus maculopinnis, n. sp. observed on Volcano–19, Tonga Arc, West Pacific, illustrating variation in live coloration, variety of substrata inhabited by this species, and interesting posture of raising the caudal region (indicated by arrows) thereby displaying prominent spots on the posterior dorsal and anal fins. A. Specimen with conspicuous, complete ocellus on dorsal and anal fins photographed on coarse pebbly substratum. B. Specimen (ca. 12.4 cm in length based on 10 cm distance between green laser dots) with incomplete white ring around black fin spots photographed on gravelly sand-shell substratum. C. Two specimens photographed on gravelly sand-shell substratum. Smaller specimen features complete ocellus on dorsal and anal fins and slight banding on body; larger specimen features little, if any, white pigment around periphery of black fin spots and distinct banding on body.

FIGURE 4 in Description and biological observations on a new species of deepwater symphurine tonguefish (Pleuronectiformes: Cynoglossidae: Symphurus) collected at Volcano – 19, Tonga Arc, West Pacific Ocean

FIGURE 4. Radiograph of head and anterior body region of Holotype (USNM 398820) of Symphurus maculopinnis, n. sp., depicting 1–2–2–2–1 pattern of interdigitation of anterior dorsal-fin pterygiophores and neural spines and nine abdominal vertebrae. Note also the sediment in the alimentary tract visible in this xray.

FIGURE 1 in Description and biological observations on a new species of deepwater symphurine tonguefish (Pleuronectiformes: Cynoglossidae: Symphurus) collected at Volcano – 19, Tonga Arc, West Pacific Ocean

FIGURE 1. Holotype of Symphurus maculopinnis, n. sp. (now USNM 398820), photographed in situ just prior to collection by ROV ROPOS at 561 m on Volcano–19, Tonga Arc, West Pacific. Manipulator is holding a scoop net.

FIGURE 2. Symphurus maculopinnis, n in Description and biological observations on a new species of deepwater symphurine tonguefish (Pleuronectiformes: Cynoglossidae: Symphurus) collected at Volcano – 19, Tonga Arc, West Pacific Ocean

FIGURE 2. Symphurus maculopinnis, n. sp. (Holotype USNM 398820; female, 84.4 mm SL), collected at 561 m on Volcano– 19, Tonga Arc, West Pacific. A. Ocular-side of alcohol-preserved specimen. B. Blind-side of same specimen.

FIGURE 2 in Description of Amplimerlinius uramanatiensis sp. n. (Nematoda: Merliniidae) and observations on three other species of the genus from Iran

FIGURE 2. Amplimerlinius macrurus female (A, C–K) and male (B, H, L). A–B, Pharyngeal region; C–D, Anterior end; E, Reproductive system, F, Cuticle and lateral field, G, Vulva and part of reproductive system; H, Body posture; I–L, Tail end.

FIGURE 1 in Description of Amplimerlinius uramanatiensis sp. n. (Nematoda: Merliniidae) and observations on three other species of the genus from Iran

FIGURE 1. Amplimerlinius uramanatiensis sp. n. female (A–I). A–B, Pharyngeal region; C–D, Anterior end; E, Vulva and part of reproductive system; F, Body posture; G–I, Tail end.

FIGURE 5 in Description of Amplimerlinius uramanatiensis sp. n. (Nematoda: Merliniidae) and observations on three other species of the genus from Iran

FIGURE 5. Amplimerlinius uramanatiensis sp. n. female (A–L). A, Entire body; B–C, Anterior end; D, Pharyngeal region; E, Basal pharyngeal bulb; F, Lateral field; G, Vuvla region; H–I, Phasmid position on tail; J–L, Tail end. Scale-bars: A = 100 µm; B–C, E–I = 10 µm; D = 30 µm; J–L = 20 µm.

FIGURE 3 in Description of Amplimerlinius uramanatiensis sp. n. (Nematoda: Merliniidae) and observations on three other species of the genus from Iran

FIGURE 3. Amplimerlinius paraglobigerus female (A, C–J) and male (B, H, K). A–B, Pharyngeal region; C–D, Anterior end; E, Reproductive system, F, Cuticle and lateral field, G, Vulva and part of reproductive system; H, Body posture; I–K, Tail end.

FIGURE 6 in Description of Amplimerlinius uramanatiensis sp. n. (Nematoda: Merliniidae) and observations on three other species of the genus from Iran

FIGURE 6. Amplimerlinius species from Iran: A. uramanatiensis sp. n. (A, E, I); A. macrurus (B, F, J); A. paraglobigerus (C, G, K); A. globigerus (D, H, L). A–D, Anterior end; E–H, Phasmid position on tail; I–L, Tail end. Scale-bars: 10 µm.

FIGURE 11. Thyone venusta Selenka 1868. A31654 A in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 11. Thyone venusta Selenka 1868. A31654 A. Tube foot end plate; B. Tube foot end plate ex Selenka (1868); C. Specimen entire, courtesy Lara Atkinson.

FIGURE 9. Synallactes viridilimus Cherbonnier, 1952. A31395, A in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 9. Synallactes viridilimus Cherbonnier, 1952. A31395, A. Body wall crosses; B. Body wall tables; C. Dorsal body wall table; D. Complete and partially complete discs of crosses/tables; E. Tube feet rods; F. Papillae rods; G. Large tentacle rods; H. Small tentacle rods; I. Specimen entire, courtesy Lara Atkinson.

FIGURE 7. Synallactes mollis Cherbonnier, 1952. A31645. A in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 7. Synallactes mollis Cherbonnier, 1952. A31645. A. Crosses of body wall; B–D. Body wall tables; E. Tube feet rods; F. Tentacle rods; G. Entire specimen (dorsal view); H. Same (ventral view).

FIGURE 5 in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 5. Synallactes cf. challengeri (Theel, 1886). A32145. A. End plate; B and C. Tables of body wall; D. Crosses of body wall; E. Partially complete disc; F. Table from anal region; G. Tentacle rods; H. Tube feet rods: I. Entire specimen.

FIGURE 4 in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 4. Synallactes cf. challengeri (Theel, 1886). A32145 A. Body wall tables; B. part of tube feet end plate; C. Rods from tube feet; D. Papillae ossicles; E. Tables from anal region; F. Cruciform bodies from tube feet; G. Large and small tentacle rods. H. Calcareous ring. (Figures A–E, G, scale b; Figure F, scale a; Figure H, scale c)

FIGURE 8. Synallactes viridilimus Cherbonnier, 1952. A31395. A in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 8. Synallactes viridilimus Cherbonnier, 1952. A31395. A. Dorsal body wall tables; B. Ventral body wall tables; C. Tentacle rods; D. Tube feet rods; E. Polian vesicle; F. Calcareous ring (Figures A–D, scale a; figures E–F, scale b)

FIGURE 2 in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 2. Zygothuria lactea, (Theel, 1886) A32143. A. Tables of body wall; B. Rods of tentacles; C. Specimen entire.

FIGURE 3. Pseudostichopus langeae Thandar, 2009. A31419, A in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 3. Pseudostichopus langeae Thandar, 2009. A31419, A. Tentacle rods; B. X-shaped rods from respiratory trees; C. Yshaped rods from gonad; D. Tube feet rods; E. Calcareous ring; F. Specimen entire, courtesy Lara Atkinson. (Figures A-D, scale a; Figure E, scale b).

FIGURE 10 in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 10. Pseudocnella insolens (Theel, 1886). A31610 and A31605. A. Body wall plates; B. Tube feet rods; C. Developing plate; D. Body wall buttons and/or plates; E. Body wall incomplete baskets; F–H. Tentacle rods; I. Introvert ossicles; J. Anal region plates; K. Entire specimens, left A31610, right A31605, courtesy Lara Atkinson.

FIGURE 6 Synallactes mollis Cherbonnier, 1952. A31645. A in On some sea cucumbers (Echinodermata: Holothuroidea) from off the south and west coasts of South Africa collected by the South African Environmental and Observation Network (SAEON)

FIGURE 6 Synallactes mollis Cherbonnier, 1952. A31645. A. Dorsal body wall tables; B. Ventral body wall tables; C. Tentacle rods; D. Tables from anal region; E. Madreporite; F. Calcareous ring; G. Tube feet rods (Figures A,C,D, scale b; figure B, scale a; figure E, scale c; figure F, scale d)