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FIGURE 6. A in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 6. A. Relation of width and nos of abdominal segments with length of body of Terebellides guangdongensis n. sp.; B. Relation of the length ratio of thorax and abdomen (LRTA) with length of body.

FIGURE 7. Terebellides yangi n in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 7. Terebellides yangi n. sp. holotype MBM286028, A. anterior region, lateral view; B. anterior region, ventral view; C. notopodia of TC1–4, lateral view; D. geniculate hook (segment 8); E. detail head of thoracic uncini; F. detail head of abdominal uncinus. Abbreviations: BL, branchial lobes; BT, Buccal tentacles; ll, lower lip; SG, segment; NI, n-type invagination; TC, thoracic chaetiger; TM, tentacular membrane.

FIGURE 5 in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 5. Methyl green staining of Terebellides guangdongensis n. sp. holotype MBM286009. A. Anterior region, lateralventral view; B–C. Close up of anterior region, lateral-dorsal view; D. posterior region, left lateral view; E. pygidium and posterior segments. Abbreviations: BL, branchial lobes; BT, buccal tentacles; DL, dorsal lobe; ll, lower lip; NPA, nephridial papilla; SG, segment; TC, thoracic chaetiger.

FIGURE 12. A in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 12. A. Relation of width and nos of abdominal segments with length of body of Terebellides yangi n. sp.; B. Relation of the length ratio of thorax and abdomen (LRTA) with length of body.

FIGURE 2. Terebellides guangdongensis n in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 2. Terebellides guangdongensis n. sp. holotype MBM286009, A. anterior region, lateral view; B. anterior region, ventral view; C. branchia, frontal lateral view; D. pygidium and posterior segments, lateral view; E. geniculate hook (segment 8); F. detail head of thoracic uncinus; G. detail head of notochaeta, frontal view; H. detail head of notochaeta, posterior view; I. detail head of abdominal uncinus. Abbreviations: BL, branchial lobes; BT, buccal tentacles; ll, lower lip; SG, segment; TC, thoracic chaetiger; TM, tentacular membrane.

FIGURE 9. Terebellides yangi n in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 9. Terebellides yangi n. sp. SEM paratypes MBM286029, A. neuropodial spines, segment 8 (chaetiger 6); B. neuropodial uncini, chaetiger 7; C. neuropodial uncini, chaetiger 13; D–G. close ups of notochaetae, chaetiger 17; H. neuropodium, chaetiger 19; I. uncini, chaetiger 32; J. uncini, posterior chaetiger. Abbreviations: CUT, chaetae of upper tier; CLT, chaetae of lower tier.

FIGURE 5 in Monomia lucida sp. nov., a new swimming crab (Crustacea: Decapoda: Portunidae) from the South China Sea

FIGURE 5. Monomia samoensis (WArd, 1939), HOlOTyPe, juveNile mAle CW 15 mm (AMNH 7482). A, OverAll HAbiTuS Of PreServed SPecimeN, dOrSAl. B, PleON. ScAle bAr: 5 mm.

FIGURE 4 in Monomia lucida sp. nov., a new swimming crab (Crustacea: Decapoda: Portunidae) from the South China Sea

FIGURE 4. COmbiNed BI/ML Tree WiTH cOmPArATive mATeriAl Of THree Monomia SPecieS. Tree ObTAiNed by BAyeSiAN ANAlySiS Of 16S geNe SequeNceS uSiNg beST fiTTiNg HKY+G SubSTiTuTiON mOdel. SuPPOrT vAlueS fOr NOdeS exPreSSed AS PerceNTAgeS fOr BI ANd ML TreeS (TAmurA 3-PArAmeTerS mOdel + G), reSPecTively (BI/ML).

FIGURE 2 in Monomia lucida sp. nov., a new swimming crab (Crustacea: Decapoda: Portunidae) from the South China Sea

FIGURE 2. Monomia lucida sp. nov., mAle HOlOTyPe, CW 58.0 mm (MNHN-IU-2014-10082). A, dOrSum Of cArAPAce. B, PleON. C, lefT THird mAxilliPed. D, rigHT cHelA, OuTer vieW. ScAle bArS: A, D—10 mm, B, C—5 mm.

FIGURE 3 in Monomia lucida sp. nov., a new swimming crab (Crustacea: Decapoda: Portunidae) from the South China Sea

FIGURE 3. Monomia lucida sp. nov., SecONdAry SexuAl cHArAcTerS. MAle PArATyPe CW 42.5 mm (NHMUK 2017.402): A, lefT G1, veNTrAl vieW, TOTAl. B, APex Of G1. FemAle AllOTyPe CW 50.5 mm (MNHN-IU-2014-10083): C, PleON, veNTrAl vieW. D, rigHT vulvA, veNTrAl vieW. ScAle bArS: A—1 mm, B—0.1 mm, C—5 mm, D—2 mm.

FIGURE 1 in Monomia lucida sp. nov., a new swimming crab (Crustacea: Decapoda: Portunidae) from the South China Sea

FIGURE 1. Monomia lucida sp. nov., HAbiTuS ANd cOlOur PATTerN Of freSHly cOllecTed femAle PArATyPe CW 45.2 mm (NHMUK 2017.401). ScAle bArS: 10 mm.

FIGURE 3 in Two new species of Comesomatidae (Nematoda) from the East China Sea

FIGURE 3. Metacomesoma macramphida sp. nov. (A) lateral view of male anterior end, showing cephalic seta, amphideal fovea and excretory pore; (B) lateral view of male posterior end, showing spicules, gubernaculum; (C) two testes with spermatozoa.

FIGURE 4 in Two new species of Comesomatidae (Nematoda) from the East China Sea

FIGURE 4. Metacomesoma macramphida sp. nov. (A) male anterior end; (B) lateral view of male anterior end, showing amphideal fovea; (C) male cloacal region, showing spicules; (D) lateral view of male cloacal region, showing spicules and gubernaculum. (Scales: A, B 10 µm; C, D 20 µm).

FIGURE 1 in Two new species of Comesomatidae (Nematoda) from the East China Sea

FIGURE 1. Paracomesoma zhangi sp. nov. (A) lateral view of male posterior end, showing spicules, gubernaculum and precloacal supplements; (B) lateral view of male anterior end, showing buccal cavity, cephalic setae and amphideal fovea; (C) lateral view of male pharyngeal region, showing secretory-excretory system; (D) lateral view of cloacal region, showing spicules, gubernaculum, precloacal seta and precloacal supplements.

FIGURE 2 in Two new species of Comesomatidae (Nematoda) from the East China Sea

FIGURE 2. Paracomesoma zhangi sp. nov. (A) male anterior end, showing buccal cavity and teeth; (B) lateral view of male anterior end, showing cephalic setae and amphideal fovea; (C) male cloacal region, showing spicules and precloacal supplements; (D) lateral view of male cloacal region, showing spicules and gubernaculum. (Scales: A, B 20 µm; C, D 30 µm).

FIGURES 37–39. Plesiocleidochasma clandestina n in Sixteen new generic records of Korean Bryozoa from southern coastal waters and Jeju Island, East China Sea: evidence of tropical affinities

FIGURES 37–39. Plesiocleidochasma clandestina n. sp., holotype, Munseom Island. 37, part of colony showing ovicellate (asterisks) and non-ovicellate orifices; 38, two-, three- and four-spined orifices at colony margin; 39, ovicellate orifice with frontal ooecial foramen. Scale bars: 37, 500 µm; 38, 200 µm; 39, 100 µm.

FIGURES 33, 34. Stephanollona boreopacifica n in Sixteen new generic records of Korean Bryozoa from southern coastal waters and Jeju Island, East China Sea: evidence of tropical affinities

FIGURES 33, 34. Stephanollona boreopacifica n. sp., holotype, Munseom Island. 33, ovicellate orifice; 34, five-spined orifice. FIGURES 35, 36. Pleuromucrum granulatum (Liu in Liu, Yin & Ma, 2001), Munseom Island. 35, zooids, mostly ovicellate, near colony margin; 36, ooecia and avicularia. Scale bars: 33, 36, 100 µm; 34, 50 µm; 35, 500 µm.

FIGURES 23–25. Jodoella koreensis n in Sixteen new generic records of Korean Bryozoa from southern coastal waters and Jeju Island, East China Sea: evidence of tropical affinities

FIGURES 23–25. Jodoella koreensis n. gen. et sp., holotype, Jodo Island. 23, reproductive part of colony showing clustered large ooecia, dimorphic orifices and a rare avicularium; 24, autozooidal orifice; 25, a rare avicularium. FIGURES 26, 27. Calloporina hayamiae Arakawa, 1995, Hajo Island. 26, zooids, several ovicellate, near colony margin, with various stages of ooecial calcification; 27, six-spined and five-spined autozooidal orifices. Scale bars: 23, 26, 300 µm; 24, 25, 50 µm; 27, 200 µm.

FIGURES 14, 15. Schizosmittina mabik n in Sixteen new generic records of Korean Bryozoa from southern coastal waters and Jeju Island, East China Sea: evidence of tropical affinities

FIGURES 14, 15. Schizosmittina mabik n. sp., holotype, Munseom Island. 14, autozooids at colony margin; 15, ovicellate zooids. FIGURES 16, 17. Stephanotheca fenestricella Dick & Grischenko, 2017, Munseom Island. 16, ooecium, ovicellate and autozooidal orifices, and suboral avicularia; 17, autozooidal orifice, condyle and suboral avicularium. Scale bars: 14, 15, 300 µm; 16, 100 µm; 17, 50 µm.

FIGURES 10–13. Reptadeonella yeonbora n in Sixteen new generic records of Korean Bryozoa from southern coastal waters and Jeju Island, East China Sea: evidence of tropical affinities

FIGURES 10–13. Reptadeonella yeonbora n. sp., holotype, Munseom Island. 10, proximal part of colony showing fan-shaped ancestrula triad and daughter zooids; 11, autozooids near growing margin; 12, orifice, suboral avicularium and denticulate single spiramen; 13, large zooid (presumed female) with compound spiramen of five openings, and adjacent smaller zooids. Scale bars: 10, 13, 300 µm; 11, 200 µm; 12, 50 µm.