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381 results for “Hokkaido”
Figure 4 in Phylogeography of the Eurasian red squirrel (Sciurus vulgaris orientis) on the boreal island of Hokkaido, Japan
Figure 4. Network of the 29 cytochrome b gene haplotypes of Sciurus vulgaris orientis in Hokkaido Island, Japan, using statistical parsimony. Haplotype names correspond to Appendix 1. Missing haplotypes are indicated by open circles. Lines connecting haplotypes indicate the relationship. Numbers in parentheses indicate the number of individuals. Haplotypes without parentheses are from just one individual.
Figure 5 in Phylogeography of the Eurasian red squirrel (Sciurus vulgaris orientis) on the boreal island of Hokkaido, Japan
Figure 5. Observed (solid lines with solid diamonds) and expected (dotted lines with open squares) mismatch distributions of Sciurus vulgaris orientis haplotypes: A) northern population; B) southern population; C) over all of Hokkaido population.
Figure 3 in Phylogeography of the Eurasian red squirrel (Sciurus vulgaris orientis) on the boreal island of Hokkaido, Japan
Figure 3. Phylogeny of Sciurus vulgaris constructed with the Bayesian inference (BI) under a HKY + G model for the cytochrome b sequences. Numbers above branches represent posterior probability supports in Bayesian analysis followed by bootstrap values from 300 replicates of ML analysis. Hyphens mean no data because clades were absent. Symbols indicate phylogroups, and correspond to those in Figure 2.
Figure 4 in Two new species of heavily calcified cyclostome bryozoans from the intertidal of Akkeshi Bay, Hokkaido, Japan
Figure 4. Favosipora ainui sp. nov., holotype, 2014.11.18.13: (A) colony surface showing autozooidal and kenozooidal apertures as well as the larger opening (left) of a symbiont tube; (B) two bicuspate autozooids surrounded by smaller kenozooids; (C) partly developed gonozooid with roof calcification growing centrifugally from the autozooids passing the brood chamber; (D) ooeciopore (centre), with flared ooeciostome, pseudoporous gonozooid roof and autozooidal apertures closed by pseudoporous terminal diaphragms; (E) two complete gonozooids, that on the left with some of the penetrant autozooids arranged connately. Scale bars: A, C, E = 500 µm; B, D = 200 µm.
Fig. 1. Microcotyle pacinkar n in Description of a New Species, Microcotyle pacinkar n. sp. (Monogenea: Microcotylidae), Parasitic on Gills of Sebastes taczanowskii (Sebastidae) from off Usujiri, Hokkaido, Northern Japan
Fig. 1. Microcotyle pacinkar n. sp. from Sebastes taczanowskii. Whole body (ventral view, MPM Coll.-No. 25226). Scale bar: 500 µm.
Fig. 2. Microcotyle pacinkar n in Description of a New Species, Microcotyle pacinkar n. sp. (Monogenea: Microcotylidae), Parasitic on Gills of Sebastes taczanowskii (Sebastidae) from off Usujiri, Hokkaido, Northern Japan
Fig. 2. Microcotyle pacinkar n. sp. from Sebastes taczanowskii. A, Clamp (ventral view, MPM Coll.-No. 25227); B, reproductive organs (ventral view, MPM Coll.-No. 25227); C, genital atrium (ventral view, MPM Coll.-No. 25227). Scale bars: A, 20 µm; B, 1 mm; C, 50 µm.
Fig. 3 in Description of a New Species, Microcotyle pacinkar n. sp. (Monogenea: Microcotylidae), Parasitic on Gills of Sebastes taczanowskii (Sebastidae) from off Usujiri, Hokkaido, Northern Japan
Fig. 3. Bayesian inference (BI) tree for the Microcotyle based on partial cox1 (379 bp) data using Bivagina pagrosomi (Microcotylidae) as the outgroup. The corresponding INSD accession numbers are shown. The tree includes results for BI and maximum likelihood with PP/BS branch supports.
Fig. 3 in Rediscovery of a Deep-sea Fish Parasite Lophoura cornuta (Copepoda: Sphyriidae) in the Western North Pacific off Hokkaido, Northern Japan
Fig. 3. Lophoura cornuta, adult female, NSMT-Cr 31508. A, Habitus, ventrolateral view, ethanol-preserved specimen; B, cephalothorax and part of neck including holdfast organ, ventral view; C, D, anterior part of cephalothorax, ventrolateral and dorsolateral views, respectively. The specimen was fixed in 70% ethanol on 24 March 1983 and photographed on 9 October 2023. Abbreviations: c, cephalothorax; cp, conical protuberance; ho, holdfast organ; n, neck. Scale bars: A, 10 mm; B, 3 mm; C, D, 0.5 mm.
Fig. 2 in Rediscovery of a Deep-sea Fish Parasite Lophoura cornuta (Copepoda: Sphyriidae) in the Western North Pacific off Hokkaido, Northern Japan
Fig. 2. Lophoura cornuta, adult female, NSMT-Cr 31509. A, Habitus, ventral view; B, C, cephalothorax and part of neck including holdfast organ, ventral and dorsal views, respectively; D, cephalothorax, anterior view. The trunks on the holdfast organ are individually numbered as 1, 2, 3, or 4 (B, C). Abbreviations: cp: conical protuberance; mo: mouth opening. Scale bars: A, 10 mm; B, C, 5 mm; D, 1 mm.
Fig. 1 in Rediscovery of a Deep-sea Fish Parasite Lophoura cornuta (Copepoda: Sphyriidae) in the Western North Pacific off Hokkaido, Northern Japan
Fig. 1. Collection localities of Lophoura cornuta in the western North Pacific off the south coast of Hokkaido, northern Japan, in the previous (open circle) and present (closed circles) studies. Localities 1, 2, and 3 are: off Cape Ochiishi (type locality; Wilson 1919), off Cape Shirepa (this paper), and off Shin-Hidaka (this paper), respectively.
Fig. 1 in Re-description of Metedwardsia akkeshi (Cnidaria: Anthozoa: Actiniaria: Edwardsiidae), Discovered in Akkeshi, Hokkaido, Almost 80 Years after Original Description, with a Revision of the Diagnosis of Genus Metedwardsia
Fig. 1. Location of sites where Metedwardsia akkeshi specimens were collected. A, localities where Metedwardsia akkeshi were collected in Hokkaido, Japan. Sites in Nemuro are indicated by black arrows (Lake Onne-to and Lake Furen); B, enlarged map of Akkeshi. Collection sites in Akkeshi are indicated by black arrows (Akkeshi Bay and Lake Akkeshi); C, the Chikarakotan mud flat of Lake Akkeshi; D, Shinryuhama Beach of Akkeshi Bay (image courtesy of Naoto Jimi); E, mud flat near the Onne-to Ohashi Bridge, Lake Onne-to.
Fig. 4 in Re-description of Metedwardsia akkeshi (Cnidaria: Anthozoa: Actiniaria: Edwardsiidae), Discovered in Akkeshi, Hokkaido, Almost 80 Years after Original Description, with a Revision of the Diagnosis of Genus Metedwardsia
Fig. 4. Cnidae of Metedwardsia akkeshi (NSMT-Co 1605). A, tentacle spirocyst; B, tentacle basitrich; C, actinopharynx basitrich; D, actinopharynx microbasic b-mastigophore; E, column basitrich; F, filament basitrich; G, filament microbasic b-mastigophore; H, filament microbasic amastigophore.
Fig. 3 in Re-description of Metedwardsia akkeshi (Cnidaria: Anthozoa: Actiniaria: Edwardsiidae), Discovered in Akkeshi, Hokkaido, Almost 80 Years after Original Description, with a Revision of the Diagnosis of Genus Metedwardsia
Fig. 3. Tentacular and mesenterial arrangement of Metedwardsia akkeshi. Schematic diagram depicting a cross-section of mesenterial and tentacular arrangement. The 24 tentacles are arranged in three cycles, consisting of an inner six (white), middle six (grey), and outer twelve (black). Abbreviations: Ac, actinopharynx; dd, dorsal directives; dlm, dorso-lateral mesenteries; mi, microcneme; vd, ventral directives; vlm, ventro-lateral directives.
Fig. 2 in Re-description of Metedwardsia akkeshi (Cnidaria: Anthozoa: Actiniaria: Edwardsiidae), Discovered in Akkeshi, Hokkaido, Almost 80 Years after Original Description, with a Revision of the Diagnosis of Genus Metedwardsia
Fig. 2. Outer and inner views of Metedwardsia akkeshi. A, outer view of Metedwardsia akkeshi (NSMT-Co 1605); B, outer view of live specimen (NSMT-Co 1606); C, oral view (NSMT-Co 1606); D, longitudinal section of oral part of M. akkeshi (NSMT-Co 1605, same hereafter); E, transversal section of actinopharynx and column; F, transversal section of tentacle; G, transversal section of a mesentery and parietal basal muscle; H, transversal section of mesenteries, gonads, and filaments; I, enlarged view of mesenteries. J, transversal section of physa. Abbreviations: Ac, actinopharynx; Fi, filament; Ma, macrocneme; Me, mesoglea; Mi, microcneme; Ov, ovary; Pa, parietal muscle; Ph, physa; Rm, retractor muscle; Scl, scapulus; Scs, scapus; Te, tentacle; Tlm, tentacular longitudinal muscle. Scale: 5 mm in A–C; 1 mm in D, E, H; 500 µm in J; 100 µm in F, G, I.
Fig. 16. Physocypria nipponica Okubo, 1990 in Ostracods (Crustacea) from Sarobetsu Marsh, Northern Hokkaido, Japan: Taxonomy and Phenology with Description of Pseudocandona tenuirostris sp. nov.
Fig. 16. Physocypria nipponica Okubo, 1990, male, ZIHU 3909. Nomarski optical image of Zenker's organ.
Fig. 15. Physocypria nipponica Okubo, 1990. A in Ostracods (Crustacea) from Sarobetsu Marsh, Northern Hokkaido, Japan: Taxonomy and Phenology with Description of Pseudocandona tenuirostris sp. nov.
Fig. 15. Physocypria nipponica Okubo, 1990. A, Cleaning leg; B, uropod with uropodal rami; C, right hemipenis; D, right clasping organ; E, left clasping organ. Scale bar: 100 µm.
Fig. 14. Physocypria nipponica Okubo, 1990. A, B, D–F in Ostracods (Crustacea) from Sarobetsu Marsh, Northern Hokkaido, Japan: Taxonomy and Phenology with Description of Pseudocandona tenuirostris sp. nov.
Fig. 14. Physocypria nipponica Okubo, 1990. A, B, D–F, Male, ZIHU 3909; C, female, ZIHU 3910. A, Mandible, with enlargements of the four palp segments; B, maxillula, with vibratory plate; C, maxilliped; D, E, left and right maxilliped, respectively; F, walking leg. Scale bar: 100 µm.
Fig. 13. Physocypria nipponica Okubo, 1990. A–D in Ostracods (Crustacea) from Sarobetsu Marsh, Northern Hokkaido, Japan: Taxonomy and Phenology with Description of Pseudocandona tenuirostris sp. nov.
Fig. 13. Physocypria nipponica Okubo, 1990. A–D, Male, ZIHU 3909; E, female, ZIHU 3910. A, Lateral view of right valve; B, lateral view of left valve; C, antennule (inset, details of endopodites of fifth to eighth podomeres); D, antenna (inset, details of endopodites of second to fourth podomeres; t2 and t3 form male bristles); E, antenna (inset, details of two terminal endopodal podomeres). Scale bar: A, B, 200 µm; C–E, 100 µm.
Fig. 11 in Ostracods (Crustacea) from Sarobetsu Marsh, Northern Hokkaido, Japan: Taxonomy and Phenology with Description of Pseudocandona tenuirostris sp. nov.
Fig. 11. Pseudocandona tenuirostris sp. nov., holotype, ZIHU 3916. Nomarsky optical image of Zenker's organ.
Fig. 17 in Ostracods (Crustacea) from Sarobetsu Marsh, Northern Hokkaido, Japan: Taxonomy and Phenology with Description of Pseudocandona tenuirostris sp. nov.
Fig. 17. Comparison of the hemipenis of Metacypris digitiformis Smith and Hiruta, 2004 between specimens from the the Sarobetsu and Kushiro populations. A, Right hemipenis typical of the Sarobetsu population, male, ZIHU 3903; B, hemipenis typical of the Kushiro population, redrawn from Smith and Hiruta (2004); arrowheads indicate point of attachment to MR. Scale bar: 100 µm.
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