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FIGURE 5. Ptychognathus crassimanus Finnegan, 1931 in Integrative taxonomy study of brackish water crabs of the genus Ptychognathus Stimpson, 1858 (Crustacea: Brachyura: Varunidae) from Polynesia, with description of two new species

FIGURE 5. Ptychognathus crassimanus Finnegan, 1931: A, dorsal view of a living specimen; B, front view of a living specimen; C, ventral view; D, typical habitat of the species, Faakuaa River, Hiva Oa Island. Photo credits: É. Vigneux (A, B), J. Poupin (C) and G. Marquet (D).

FIGURE 4. Ptychognathus crassimanus Finnegan, 1931 in Integrative taxonomy study of brackish water crabs of the genus Ptychognathus Stimpson, 1858 (Crustacea: Brachyura: Varunidae) from Polynesia, with description of two new species

FIGURE 4. Ptychognathus crassimanus Finnegan, 1931: A, carapace; B, left third maxilliped; C, male cheliped; D, E, female cheliped; F, third pereiopod with inner view of dactylus; G, fifth pereiopod; H, male pleon; I, female pleon; J, male right first gonopod. MNHN-IU-2019-182 (A, B, C, F, G, H) male from Ua Pou Island; MNHN-IU-2019-183 (J) male from Hiva Oa Island; MNHN-IU-2011-9062 (E, D, I) female from Fatu Hiva Island.

FIGURE 3 in Integrative taxonomy study of brackish water crabs of the genus Ptychognathus Stimpson, 1858 (Crustacea: Brachyura: Varunidae) from Polynesia, with description of two new species

FIGURE 3. Phylogenetic tree obtained by Bayesian Inference from the single-locus 16S dataset. Numbers above branches indicate Bayesian posterior probabilities; numbers under branches indicate Maximum Likelihood bootstrap values.

FIGURE 2 in Integrative taxonomy study of brackish water crabs of the genus Ptychognathus Stimpson, 1858 (Crustacea: Brachyura: Varunidae) from Polynesia, with description of two new species

FIGURE 2. Phylogenetic tree obtained by Bayesian Inference from the concatenated 16S and COI datasets. Numbers above branches indicate Bayesian posterior probabilities; numbers under branches indicate Maximum Likelihood bootstrap values.

Fig. 22 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 22 Majority-rule consensus tree from the Bayesian analysis of the concatenated 18S rDNA + 28S rDNA + cox1 dataset of Promesostoma. Branches with support values below the thresholds in the legend of the three analyses were collapsed. Symbols above branches represent posterior probabilities (: 0.95 ≤ pp <100; : 0.85 ≤ pp <0.95;: pp <0.85). Symbols below branches

Fig. 20 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 20 Trigonostomum yoandrisi sp. n. a Body organisation (live animal). b Anterior body end. c, g Bursal appendage. d–f Copulatory organ. b–e, g From the holotype. a, g Structures oriented with the anterior end toward the right side of the plate. b–d Structures oriented with the anterior end toward the left side of the plate. e–f Structures oriented with the anterior end toward the top of the plate

Fig. 16 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 16 Ceratopera paragracilis Ehlers & Ax, 1974. a Body organisation (live animal). b, f Bursal appendage. c, g Hard structures of the copulatory bulb. d Stylet. e Mantle. a–b, f Structures oriented with the anterior end toward the left side of the plate. c–e, g Structures oriented with the anterior end toward the top of the plate

Fig. 21 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 21 Majority-rule consensus tree from the Bayesian analysis of the concatenated 18S +28S rDNA dataset of Dalytyphloplanida. Branches with support values below the thresholds in the legend of the three analyses were collapsed. Symbols above branches represent posterior probabilities (: 0.98 ≤ pp <100;: 0.95 ≤ pp <0.98;: pp <0.95). Symbols below branches indicate SH-aLRT (: 85 ≤ SH-aLRT <100

Fig. 14 a–c in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 14 a–c, Promesostoma roseapharynx sp. n. d–e, Promesostoma toryne sp. n. a, d Body organisation. b Schematic reconstruction of the male genital structures. c, e Stylet (from the holotype). Structures oriented with the anterior end toward the top of the plate

Fig. 19 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 19 Trigonostomum vanmecheleni Artois et al., 2013. a Atrial organs. b Bursal appendage. c Hard structures of the copulatory bulb. d, e Mantle plates. f Stylet. a, f From whole mounts. Structures oriented with the anterior end toward the top of the plate

Fig. 10 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 10 Brinkmanniella simplex sp. n. a Body organisation. b Stylet. Brinkmanniella tenebrosa sp. n. c Body organisation. d, stylet. b, d From the holotype. a, c Structures oriented with the anterior end toward the left side of the plate. b, d–f Structures oriented with the anterior end toward the top of the plate

Fig. 11 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 11 Kymocarens morrisi sp. n. a Body organisation (live animal). b Schematic reconstruction from sagittal sections of the pharynx from the right side. c Schematic reconstruction from sagittal sections of the genital system from the left side; the right oviduct, ovary, and vitellarium are not drawn. d, e Stylet. d From the holotype. a, d–e Structures oriented with the anterior end toward the top of the plate. b Structures oriented with the anterior end toward the right side of the plate. c Structures oriented with the anterior end toward the left side of the plate

Fig. 7 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 7 Live specimens of species of Gaziella. a Gaziella cochleata sp. n. b–e G. microcirra sp. n. a, b Body organisation. c, d Details of the anterior region of the body and the rhabdite tracts. e Male copulatory bulb. a, b Structures oriented with the anterior end toward the top of the plate. c–e Structures oriented with the anterior end toward the right side of the plate

Fig. 5 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 5 Neokytorhynchus pacificus Ehlers & Ehlers, 1981. Micrograph of the sections. Structures oriented with the anterior end toward the right side of the plate

Fig. 2 Schockaertia aprostatica gen. n in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 2 Schockaertia aprostatica gen. n. sp. n. Micrograph of the sections. a, b Structures oriented with the anterior end toward the right side of the plate. c, d Structures oriented with the anterior end toward the bottom of the plate

Fig. 1 Schockaertia aprostatica gen. n in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama

Fig. 1 Schockaertia aprostatica gen. n. sp. n. a, b A live animal. c Schematic reconstruction from sagittal sections of the body from the right side. The left ovary and vitellarium are not drawn. Structures oriented with the anterior end toward the right side of the plate

FIGURE 17 in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 17. Branchiae of Terebellides, Terebellides yangi n. sp. MBM286033, A–D. Branchia and branchial stem. Terebellides yangi n. sp. MBM286029, E. anterior end, lateral-dorsal views. Terebellides guangdongensis n. sp. MBM286024, F. anterior end, lateral-dorsal views; G. BL5–6. Abbreviations: BL, branchial lobes; JBS, joint of branchia and segment; LHT, large hollow tube; SHT, small hollow tube; SG, segment; ST, semi-circular tube; TC, thoracic chaetiger.

FIGURE 14. Terebellides ectopium n in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 14. Terebellides ectopium n. sp. SEM paratype MBM286027. A. complete worm; B. detail notochaeta of TC1–3, lateral-dorsal view; C. anterior end, lateral-ventral views; D. anterior end, lateral-dorsal views; E–F. close ups of branchia; G. thoracic chaetiger 1–4, lateral view. Abbreviations: BL, branchial lobes; BT, Buccal tentacles; DC, dorsal cirrus; ll, lower lip; NI, n-type invagination; TC, thoracic chaetiger. Abbreviations: BL, branchial lobes; BT, buccal tentacles; DC, dorsal cirrus; ll, lower lip; SG, segment; TC, thoracic chaetiger; TM, tentacular membrane.

FIGURE 15. Terebellides ectopium n in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 15. Terebellides ectopium n. sp. SEM paratype MBM286027. A. thoracic chaetiger 4–7; B. neuropodial spines, chaetiger 5 (segment 7); C. neuropodial spines, chaetiger 6 (segment 8); D–H. close ups of notochaetae, chaetiger 9; I, K. close up of uncini, chaetiger 9; J. neuropodial uncini, chaetiger 14; L. neuropodium, chaetiger 19; M, uncini, chaetiger 43. Abbreviations: CLT, chaetae of lower tier; CUT, chaetae of upper tier; TC, thoracic chaetiger.

FIGURE 16 in Taxonomy and distribution of Terebellides (Polychaeta: Trichobranchidae) in the northern South China Sea, with description of three new species

FIGURE 16. Methyl green staining of Terebellides ectopium n. sp. holotype MBM286026, A. anterior region, lateral view; B. posterior region, lateral view; C. thoracic chaetiger 4–7; D. pygidium and posterior segments. Abbreviations: BL, branchial lobes; ll, lower lip; TC, thoracic chaetiger.