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FIGURE 10. Nipponasellus matsumotoi spec. nov., holotype X54659 in Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a largescale biogeographical context

FIGURE 10. Nipponasellus matsumotoi spec. nov., holotype X54659/Cr-2477-FEFU, male, 5.5 mm: (A) antennula; (B) antenna; (C) mandible, left; (D) mandible, right; (E) labium; (F) labrum; (G) maxillula, with enlarged outer plate; (H) maxilla, with enlarged inner plate; (I) maxilliped.

FIGURE 2 in Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a largescale biogeographical context

FIGURE 2. Worldwide distribution (A) Asellus macrogroup (green dots) and Calasellus-Columbasellus macrogroup (blue dots); (B) Caecidotea-Proasellus macrogroup (maroon dots), showing localization of Nipponasellus (orange dots). Shaded area indicates hypothetical outline of Late Paleozoic Angarida (Siberia) mainland (after Ganelin 2021).

FIGURE 7. Nipponasellus sudzukhensis spec. nov., holotype X54657 in Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a largescale biogeographical context

FIGURE 7. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pereopod 1, with enlarged palm; (B) pereopod 2; (C) pereopod 3; (D) pereopod 4; (E) pereopod 5; (F) pereopod 6; (G) pereopod 7.

FIGURE 6. Nipponasellus sudzukhensis spec. nov., holotype X54657 in Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a largescale biogeographical context

FIGURE 6. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) antennula; (B) antenna; (C) mandible, left; (D) mandible, right; (E) labium; (F) maxillula, with enlarged outer plate; (G) maxilla; (H) maxilliped.

FIGURE 3. Metacrimenes fenestra n. gen., n in A new genus and new species of palaemonid shrimp (Decapoda: Caridea), associated with the deep-sea crinoid Metacrinus rotundus (Echinodermata: Isocrinidae), from Suruga Bay, Japan

FIGURE 3. Metacrimenes fenestra n. gen., n. sp., holotype, ovigerous female (cl 3.2 mm), CBM-ZC 17530; A, anterior part of carapace and cephalic appendages, lateral view; B, same, dorsal view [marginal setae omitted on right side]; C, telson, dorsal view; D, close up of posterior part of telson, dorsal view; E, lateral flagellum of left antennule, dorsolateral view; F, left antenna, ventral view (setae omitted); G, left uropod, dorsal view (marginal setae omitted).

FIGURE 7. Host crinoid Metacrinus rotundus Carpenter, 1885 in A new genus and new species of palaemonid shrimp (Decapoda: Caridea), associated with the deep-sea crinoid Metacrinus rotundus (Echinodermata: Isocrinidae), from Suruga Bay, Japan

FIGURE 7. Host crinoid Metacrinus rotundus Carpenter, 1885 in situ. A, entire animal on the muddy bottom; B, holotype of Metacrimenes fenestra n. gen., n. sp. clinging to the arm of M. rotundus (blue arrow).

FIGURE 2. Metacrimenes fenestra n. gen., n in A new genus and new species of palaemonid shrimp (Decapoda: Caridea), associated with the deep-sea crinoid Metacrinus rotundus (Echinodermata: Isocrinidae), from Suruga Bay, Japan

FIGURE 2. Metacrimenes fenestra n. gen., n. sp., holotype, ovigerous female (cl 3.2 mm), CBM-ZC 17530; A, carapace and cephalic appendages, lateral view; B, pleon, telson and pleonal appendages, lateral view.

FIGURE 1. Metacrimenes fenestra n. gen., n in A new genus and new species of palaemonid shrimp (Decapoda: Caridea), associated with the deep-sea crinoid Metacrinus rotundus (Echinodermata: Isocrinidae), from Suruga Bay, Japan

FIGURE 1. Metacrimenes fenestra n. gen., n. sp., holotype, ovigerous female (cl 3.2 mm), CBM-ZC 17530, photographed shortly after capture in small aquarium, showing living colouration; A, habitus, lateral view; B, habitus, dorsal view.

FIGURE 6. Metacrimenes fenestra n. gen., n in A new genus and new species of palaemonid shrimp (Decapoda: Caridea), associated with the deep-sea crinoid Metacrinus rotundus (Echinodermata: Isocrinidae), from Suruga Bay, Japan

FIGURE 6. Metacrimenes fenestra n. gen., n. sp., holotype, ovigerous female (cl 3.2 mm), CBM-ZC 17530; A, chela of left first pereopod, extensor view; B, chela and carpus of left first pereopod, mesial view; C, chela of left second pereopod, extensor view; D, dactylus and distal part of third pereopod, lateral view; E, dactylus and distal part of fifth pereopod, mesial view.

FIGURE 8 in A new genus and new species of palaemonid shrimp (Decapoda: Caridea), associated with the deep-sea crinoid Metacrinus rotundus (Echinodermata: Isocrinidae), from Suruga Bay, Japan

FIGURE 8. Maximum-likelihood (ML) tree constructed from concatenated data sets of the mitochondrial COI and 16S rRNA genes of Metacrimenes fenestra n. gen., n. sp. and closely allied palaemonid taxa (log likelihood -10197.759547). Numbers at nodes are bootstrap values; only values>80% are shown. The outgroup (Brachycarpus biunguiculatus) is omitted.

FIGURE 5. Metacrimenes fenestra n. gen., n in A new genus and new species of palaemonid shrimp (Decapoda: Caridea), associated with the deep-sea crinoid Metacrinus rotundus (Echinodermata: Isocrinidae), from Suruga Bay, Japan

FIGURE 5. Metacrimenes fenestra n. gen., n. sp., holotype, ovigerous female (cl 3.2 mm), CBM-ZC 17530; pereopods, lateral view. A, first pereopod; B, left second pereopod, C, right second pereopod; D, left third pereopod; E, left fourth pereopod; F, left fifth pereopod.

FIGURE 4. Metacrimenes fenestra n. gen., n in A new genus and new species of palaemonid shrimp (Decapoda: Caridea), associated with the deep-sea crinoid Metacrinus rotundus (Echinodermata: Isocrinidae), from Suruga Bay, Japan

FIGURE 4. Metacrimenes fenestra n. gen., n. sp., holotype, ovigerous female (cl 3.2 mm), CBM-ZC 17530; A, mandible, inner view; B, maxillule, outer view; C, maxilla, outer view; D, first maxilliped, outer view (endites broken during dissection); E, second maxilliped, outer view; F, third maxilliped, lateral view; G, same, coxa and antepenultimate article, ventral view.

opencc-by-4.0Dec 2023View details →

The data for hydrodynaic-ecosystem-PCBs model resuts for "North-South Discrepancy in the Contributors to CB153 Accumulation in the Deep Water of the Sea of Japan"

The major data for "North-south discrepancy in the contributors to CB153 accumulation in the deep water of the Sea of Japan" are listed as follows:1) The monthly mean concentrations of dissolved and particulate CB153 in the control-run, and the dissolved CB153 concentration in the nobio-run. Data are saved in MATLAB files ("CB153 concentration in the Sea of Japan.mat") with variables of longitude, latitude, depth, Cw_control, Cwpar, and Cw_nobio. 2) The accumulation process of dissolved CB153 from the first year to the 21st year. Data are saved in MATLAB file of "accumulation process from the first year to 21st year.mat".3) Monthly distribution of the remineralization flux of detritus-bound CB153 and the mixed layer depth. Data are saved in the MATLAB file of "remineralization flux of detritus-bound CB153.mat" with variables of longitude, latitude, depth, the mixed layer 3) Distributions of the dissolved CB153 concentrations on different isopycnals and the current velocity. Data are saved in the MATLAB file of "current velocity_density.mat" with variables of longitude, latitude, u,v, and density.

Fig. 3 in Genetic variation in the spotted seal (Phoca largha Pallas, 1811) from the Rimsky-Korsakov Archipelago (Peter the Great Bay, western sea of Japan) as inferred from mitochondrial DNA control region sequences

Fig. 3. Consensus maximum likelihood tree demonstrating the matrilineal genealogy of some Phocidae species generated from the 460 bp mtDNA control region sequences. The numbers at branch nodes represent bootstrap support of 1000 replications for the maximum likelihood trees and posterior probabilities of 2,000,000 generations for the Bayesian trees with the same topology, respectively. The accession numbers of Phoca largha from Liaodong Bay are highlighted in bold. Scale bar indicates the relative branch lengths.

Fig. 4 in A new oerstediid discovered from wood falls in the Sea of Kumano, Japan: Description of Rhombonemertes rublinea gen. et sp. nov. (Nemertea: Eumonostilifera)

Fig. 4. Rhombonemertes rublinea gen. et sp. nov. (paratype). Photomicrographs of serial transverse sections, showing cerebral organ ventrolaterally opening and replaced with acidophilic glands anterior to precerebral septum. Abbreviations: oc, ocelli; ps, precerebral septum; st, stomach. Scale bar: 75 μm.

Fig. 2 in Genetic variation in the spotted seal (Phoca largha Pallas, 1811) from the Rimsky-Korsakov Archipelago (Peter the Great Bay, western sea of Japan) as inferred from mitochondrial DNA control region sequences

Fig. 2. Minimum spanning network showing the mutational relationships among Phoca largha haplotypes detected in a sample of 32 spotted seal underyearlings. The tick marks on the branches indicate mutational changes. The circle sizes correspond to the number of haplotypes. The haplotypes of groups (A) and (B) are shown in gray and white circles, respectively. The median vectors are indicated by dark dots.

Fig. 5. A in A new oerstediid discovered from wood falls in the Sea of Kumano, Japan: Description of Rhombonemertes rublinea gen. et sp. nov. (Nemertea: Eumonostilifera)

Fig. 5. A maximum likelihood (ML) tree based on concatenated sequences of 16S (400 bp), COI (602 bp), 18S (1750 bp), and 28S (1043 bp). Numbers near each node are support values generated by a separate partitioned ML bootstrap analysis with 1000 replicates and posterior probability by the BI analyses. Solid triangles indicate full support values (100% of bootstrap value/1.00 of posterior probability).

Fig. 1 in A new oerstediid discovered from wood falls in the Sea of Kumano, Japan: Description of Rhombonemertes rublinea gen. et sp. nov. (Nemertea: Eumonostilifera)

Fig. 1. Collection sites of Rhombonemertes rublinea gen. et sp. nov. (A) Bathymetric map for sampling localities in the Sea of Kumano (red stars). (B) A living specimen found among woody debris. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)

Fig. 3 in A new oerstediid discovered from wood falls in the Sea of Kumano, Japan: Description of Rhombonemertes rublinea gen. et sp. nov. (Nemertea: Eumonostilifera)

Fig. 3. Rhombonemertes rublinea gen. et sp. nov. (paratype). Photomicrographs of transverse (A, B, D–M) and frontal (C) sections. (A) Body wall in precerebral region; (B) Body wall in foregut region; (C) diagonal muscle fibers (arrowheads) between outer circular and inner longitudinal muscle layers of body wall, intestinal region; (D) frontal organ; (E, F) precerebral vessels (arrowheads); (G) cephalic glands; (H) mid-dorsal vessel (arrowhead); (I) proboscis, arrowheads pointing to proboscis nerves; (J) brain; (K) nephridial canals (arrowhead); (L) rhynchocoel musculature and dorsoventral muscles; (M) ovaries. Abbreviations: br, brain; co, cerebral organ; dvm, dorso-ventral muscle of body wall; ep, epidermis; ic, intestinal caecum; ilm, body-wall inner longitudinal muscle; ocm, body-wall outer circular muscle; pe, proboscis epithelium; pic, proboscis inner circular muscle; pml, proboscis middle longitudinal muscle; poc, proboscis outer circular muscle; py, pylorus, rcm, rhynchocoel circular muscle; rlm, rhynchocoel longitudinal muscle; ov, ovary. Scale bars: 45 μm (A, B); 50 μm (C–E); 100 μm (F–K), 75 μm (L, M).

Fig. 2 in A new oerstediid discovered from wood falls in the Sea of Kumano, Japan: Description of Rhombonemertes rublinea gen. et sp. nov. (Nemertea: Eumonostilifera)

Fig. 2. Rhombonemertes rublinea gen. et sp. nov, living specimens. (A) Whole body, dorsal view, holotype (male) and paratype (female). (B) Magnification of head, dorsal view, holotype. (C) Magnification of head, ventral view, paratype. (D) Microphotograph of a living specimen, squeezed with a coverslip after anesthetization, holotype. (E) Magnification of stylet apparatus in everted proboscis, a black arrowhead pointing to a central stylet and white arrowheads to accessory stylet pouches. Abbreviations: af, anterior cephalic furrows; cc, cerebral canal, cg, cerebral ganglia; co, cerebral organ; ic, intestinal caecum; id, intestinal diverticulum; pb, proboscis; pf, posterior cephalic furrows; pp, proboscis pore; rc, rhynchocoel, te, testis. Scale bars: 5 mm (A), 500 μm (B, C), 750 μm (D), 100 μm (E).