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18 results for “Johnius”
FIGURE 8 in Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo
FIGURE 8. (A) Phylogenetic trees reconstructed using the nDNA S7 genes of 5 Johnius (Johnius) species. Values above the branches are respective bootstrap values from 5000 replications for the Neighbour-Joining (NJ) and Maximum-Likelihood (ML) analyses. Bar indicates genetic distances of 0.02. (B) Three nucleotide differences (black arrow) at the sites 215, 308, and 354 nucleotides in the homozygote nuclear gene S7 of J. sasakii sp. nov.
FIGURE 4 in Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo
FIGURE 4. Swimbladder of Johnius sasakii sp. nov. (paratype, NMMB-P 34739, 146 mm SL), with 14 pairs of lateral appendages followed by a hammer-shape, with a number of arborescent appendages along the entire lateral surface (ventral view).
FIGURE 1 in Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo
FIGURE 1. (A) The distinctly enlarged teeth on upper and lower jaws from Johnius (Johnieops) borneensis, NMMB-P 15389 (147 mm SL) (front view). (B) The slightly enlarged teeth on upper jaw; small and uniform teeth on lower jaw from paratype of Johnius (Johnius) sasakii sp. nov., NMMB-P 34743 (143 mm SL) (front view).
FIGURE 7. Phylogenetic trees reconstructed using the mtDNA 16S in Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo
FIGURE 7. Phylogenetic trees reconstructed using the mtDNA 16S genes of five Johnius (Johnius) species. Values above the branches are respective bootstrap values from 5000 replications for the Neighbour-Joining (NJ) and Maximum-Likelihood (ML) analyses. Bar indicates genetic distances of 0.02.
FIGURE 2 in Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo
FIGURE 2. Holotype of Johnius sasakii sp. nov., (A) Fresh specimen, (B) preserved specimen, NMMB-P 34733, 111 mm SL, Bako, Sarawak, Malaysia, 17 March 2017, collected by Norhafiz Hanafi, fish market.
FIGURE 6 in Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo
FIGURE 6. Photographs of the comparative materials. (A) Johnius sasakii sp. nov.; NMMB-P 34738, paratype, 114 mm SL, (B) Johnius heterolepis NMMB-P 35556, 105 mm SL, (C) Johnius carouna, NMMB-P 34743 141 mm SL and (D) Johnius macrorhynus; NMMB-P 34744, 116 mm SL.
FIGURE 10 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 10. Phylogenetic relationship of all 27 sciaenid species from Chinese waters and three outgroup species based on Neighbor Joining (NJ) analyses. Nodes are supported by bootstrap values of distance matrix. Only values ≥ 50% are present- ed.
FIGURE 3 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 3. (a) The distinctly enlarged teeth on upper and lower jaws from Johnius borneensis (121 mm SL) (front view). (b) The slightly enlarged teeth on upper jaw; small and uniform teeth on lower jaw from Johnius taiwanensis (144 mm SL) (front view).
FIGURE 8 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 8. Right side sagitta (a, medial view; b, lateral view) and right side lapillus (c, medial view) of Johnius taiwanensis (121 mm SL).
FIGURE 9 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 9. (a) Drumming muscles (arrows) position on the lateral body wall from a male Johnius taiwanensis; (b) a female Johnius taiwanensis without drumming muscles.
FIGURE 2 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 2. Head CT scan of a Johnius belangerii individual showing the in situ position of three pairs of otoliths; a pair of large triangular shaped sagitta, and the relative enlarge lapillus in front and a pair of small asteriscus located posto-lateral of the sagitta. (CT Scan by Andrew Williston, MCZ, Harvard University, with permission to use one time here)
FIGURE 1 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 1. Lateral branch of the anterior appendage of the gas bladder visible externally at the junction of cleithrum and supracleithrum (under gill cover) in all Johnius species. (a) Redrawn from Sasaki 2001, p.3119; (b) a head photo of a Johnius species with the arrow indicating the exposed first appendage.
FIGURE 7 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 7. The gas bladder of Johnius taiwanensis (148 mm SL) with 14−15 aborescent lateral appendages (ventral view).
FIGURE 4 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 4. Johnius taiwanensis. (a) Holotype, NMMBP 23063 (126 mm SL), Jianjun Port, Tainan, Taiwan; (b) a specimen of 158 mm SL, Dongshan, Fujian.; (c) Paratype, NMMBP 31331 (111 mm SL) photographed live from Taoyuan, Taiwan (photo by Ming-Tai Chou); (d) a fresh specimen from Budai Port, Taiwan (photo by Dr. Guo-Shu Chen).
FIGURE 5 in Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo
FIGURE 5. Inner surface of sagitta of Johnius sasakii sp. nov., paratype, NMMB-P 34739, 146 mm SL.
FIGURE 6 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 6. Five mental pores of Johnius taiwanensis (148 mm SL) at lower jaw (ventral view).
FIGURE 5 in Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters
FIGURE 5. The first gill arch of Johnius taiwanensis (144 mm SL).
FIGURE 3 in Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo
FIGURE 3. First gill arch on left side of Johnius sasakii sp. nov. (paratype: NMMB-P 34739, 146 mm SL).
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