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37 results for “Ptychognathus”
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.
FIGURE 4. A in A new species of the genus Ptychognathus Stimpson, 1858 (Crustacea: Brachyura: Varunidae) from Vanuatu
FIGURE 4. A neighbor-joining tree for species of Ptychognathus, based on the cytochrome c oxidase subunit I (COI) gene. Probability values at the nodes represent support values. Only values> 50% are shown. For haplotype names, see Table 1.
FIGURE 3. Ptychognathus aff. lipkei. A–J in A new species of the genus Ptychognathus Stimpson, 1858 (Crustacea: Brachyura: Varunidae) from Vanuatu
FIGURE 3. Ptychognathus aff. lipkei. A–J, male (11.4 × 9.6 mm, ZRC 2023.0250). A, carapace; B, left third maxilliped; C, outer view of left male cheliped; D, left P4; E, left P5; F, male pleon; G–J, male right G1 (G, H, dorsal view; I, J, dorsolateral view).
FIGURE 2 in A new species of the genus Ptychognathus Stimpson, 1858 (Crustacea: Brachyura: Varunidae) from Vanuatu
FIGURE 2. Ptychognathus amikee sp. nov. A–C, E–G, I–L, male holotype (15.8 × 13.6 mm, MNHN-B29852); D, H, M, female paratype (17.4 × 14.6 mm, MNHN-B29853). A, carapace; B, left third maxilliped; C, outer view of male left cheliped; D, outer view of female left cheliped; E, right P4; F, right P5; G, male pleon; H, female pleon; I–L, male right G1 (I, J, dorsal view; K, L, dorsolateral view); M, right vulva.
FIGURE 1. A–D in A new species of the genus Ptychognathus Stimpson, 1858 (Crustacea: Brachyura: Varunidae) from Vanuatu
FIGURE 1. A–D, Ptychognathus amikee sp. nov.; A–B, male holotype (15.8 × 13.6 mm, MNHN-B29852); C–D, female paratype (17.4 × 14.6 mm, MNHN-B29853); E–F, Ptychognathus aff. lipkei, male (11.4 × 9.6 mm, ZRC 2023.0250); A, C, E, dorsal view; B, D, F, ventral view.
FIGURE 9. Ptychognathus ishii Sakai, 1939. A in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)
FIGURE 9. Ptychognathus ishii Sakai, 1939. A, male (8.7×10.4 mm), Chiba Prefecture, CBM-ZC 20274, habitus in dorsal view; B, ovigerous female (8.6×10.6 mm), Okinawa Island, CBM-ZC 5913, carapace with eyes, showing surface setation, dorsal view.
FIGURE 8. Ptychognathus lipkei N.K in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)
FIGURE 8. Ptychognathus lipkei N.K. Ng, 2010, male (10.6×13.6 mm), Nakanoshima Island, Tokara Islands, CBM-ZC 4477. A, left cheliped, merus, ventral view; B, same, chela, outer view; C, left pereopod 4, carpus to dactylus, dorsal view; D, left pereopod 5, carpus to dactylus, dorsal view; E, left gonopod 1, ventral view; F, same, distal part, dorsal view.
FIGURE 7. Ptychognathus lipkei N.K in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)
FIGURE 7. Ptychognathus lipkei N.K. Ng, 2010, male (10.6×13.6 mm), Nakanoshima Island, Tokara Islands, CBM-ZC 4477. A, carapace with eyes and right antennule, dorsal view (setae on left side of surface omitted); B, front, antennules and left antenna, anterior view; C, left inferior orbital margin, ventral view; D, thoracic sternites 1–4, ventral view; E, left maxilliped 3, outer view; F, pleon, outer view.
FIGURE 6. Ptychognathus lipkei N.K in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)
FIGURE 6. Ptychognathus lipkei N.K. Ng, 2010. A, male (8.3×10.0 mm), Ishigaki Island, Yaeyama Islands, RUMF-ZC-6848, habitus in dorsal view; B, male (10.6×13.1 mm), Ishigaki Island, RUMF-ZC-7114, cephalothorax, ventral view.
FIGURE 3. Ptychognathus glaber Stimpson, 1858 in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)
FIGURE 3. Ptychognathus glaber Stimpson, 1858, male (12.6×16.2 mm), Chichi-jima Island, Ogasawara Islands, CBM-ZC 16568. A, left cheliped, merus, ventral view; B, same, chela, outer view; C, left pereopod 4, propodus and dactylus, dorsal view; D, left pereopod 5, propodus and dactylus, dorsal view; E, left gonopod 1, ventral view; F, same, distal part, dorsal view.
FIGURE 2. Ptychognathus glaber Stimpson, 1858 in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)
FIGURE 2. Ptychognathus glaber Stimpson, 1858, male (12.6×16.2 mm), Chichi-jima Island, Ogasawara Islands, CBM-ZC 16568. A, Carapace with eyes and right antenna, dorsal view (setae on left side of dorsal surface omitted); B, front, antennules and left antenna, anterior view; C, left inferior orbital margin, ventral view; D, thoracic sternites 1–4, ventral view; E, left maxilliped 3, outer view; pleon, outer view.
FIGURE 5. A–D in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)
FIGURE 5. A–D, Ptychognathus glaber Stimpson, 1858, female (10.8×13.1 mm), Chichi-jima Island, Ogasawara Islands, CBM-ZC 16568; E, Ptychognathus ishii Sakai, 1939, female (8.6×10.6 mm), Okinawa Island, CBM-ZC 5913. A, carapace with eyes and left antenna, dorsal view (setae on left side of surface omitted); B, left vulva, ventral view; C, left cheliped, chela and carpus, outer view; D, E, pleomeres 3–6 and telson, outer view.
FIGURE 6 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 6. Distribution map of the species studied. Stars indicate type localities.
FIGURE 1 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 1. Map of the Polynesian triangle and Polynesian sub-regions.
FIGURE 7. Ptychognathus easteranus. A 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 7. Ptychognathus easteranus. A: carapace; B: left third maxilliped; C: male cheliped; D and E: female cheliped; F: third pereiopod; G: fifth pereiopod; H: male pleon; I: female pleon; J: male right first gonopod. MNHN-IU-2016-11889 (A, B, C, F, G, H) male; MNHN-IU-2022-4090 (J); MNHN-IU-2016-11891 (E, D, I) female, both from Tahiti.
FIGURE 4. Ptychognathus glaber Stimpson, 1858 in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)
FIGURE 4. Ptychognathus glaber Stimpson, 1858, female (10.8×13.1 mm), Chichi-jima Island, Ogasawara Islands, CBM-ZC 16568. A, habitus in dorsal view; B, habitus in ventral view.
FIGURE 1. Ptychognathus glaber Stimpson, 1858 in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)
FIGURE 1. Ptychognathus glaber Stimpson, 1858, male (12.6×16.2 mm), Chichi-jima Island, Ogasawara Islands, CBM-ZC 16568. A, habitus in dorsal view; B, habitus in ventral view.
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