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15 results for “Macrognathus”
Figure 2 in Occurrence of regenerated tail in Indian freshwater spiny eel, Macrognathus pancalus Hamilton, 1822 (Teleostei: Mastacembelidae), in northern West Bengal, India
Figure 2. Lateral view, preopercular spines, scales, and X-ray impression of regenerated tail of Macrognathus pancalus.
Figures 40-46. Laemophloeus macrognathus Reitter.40 in A review of New World Laemophloeus Dejean (Coleoptera: Laemophloeidae): 1. Species with antennal club of more than three antennomeres
Figures 40-46. Laemophloeus macrognathus Reitter.40) Head and pronotum, male. 41) Head, female. 42) Pronotum, female. 43) Male genitalia. 44) Median lobe and tegmen. 45) Male claspers. 46) Antennomere IV.
Fig. 74. Macrognathus zebrinus, 195.9 in The non-native freshwater fishes of Singapore: an annotated compilation
Fig. 74. Macrognathus zebrinus, 195.9 mm SL, Lower Seletar Reservoir.
FIGURE 1. Macrognathus kris, A. MZB 10978 in A new, uniquely patterned spiny eel (Teleostei: Mastacembelidae) from southern Borneo, Kalimantan Tengah, Indonesia
FIGURE 1. Macrognathus kris, A. MZB 10978, holotype, 189.4 mm SL; B. ZRC 51203, paratype, 99.8 mm SL; C. ZRC 51202, paratype, 227.3 mm SL; D. ZRC 51204, 370.0 mm SL.
FIGURE 2 in The Sri Lankan spiny eel, Macrognathus pentophthalmos (Teleostei: Mastacembelidae), and its enigmatic decline
FIGURE 2. Radiographs of A, Macrognathus pentophthalmos, NMSL FF 137, 174 mm SL; B, M. aral, ZMB 1420 (lectotype), 214 mm SL (courtesy of Museum für Naturkunde, Berlin); C, M. aral, WHT 7510 (topotype), 154 mm SL.
FIGURE 4 in The Sri Lankan spiny eel, Macrognathus pentophthalmos (Teleostei: Mastacembelidae), and its enigmatic decline
FIGURE 4. Former distribution of Macrognathus pentophthalmos in Sri Lanka, based on Senanayake, 1980 (black dots); Willey, 1910 (green dot); Deraniyagala, 1932 (blue triangles); and material in the National Museum of Sri Lanka, Colombo (red dots), indicating also the 500 m and 1,000 m contours.
FIGURE 3 in The Sri Lankan spiny eel, Macrognathus pentophthalmos (Teleostei: Mastacembelidae), and its enigmatic decline
FIGURE 3. Lateral views of Indian species of Macrognathus. A, M. aral, WHT 7510 (topotype), 154 mm SL. B, M. guentheri, WHT 7644, 156 mm SL.
FIGURE 1 in The Sri Lankan spiny eel, Macrognathus pentophthalmos (Teleostei: Mastacembelidae), and its enigmatic decline
FIGURE 1. Lateral views of Macrognathus pentophthalmos. A, MCZ 166239, 195 mm SL (courtesy of Museum of Comparative Zoology, Harvard University). B, NMSL FF 137, 174 mm SL.
FIGURE 2 in Macrognathus aureus, a new spiny eel of the M. aculeatus species group from the Upper Ayeyarwaddy River Drainage, Myanmar (Teleostei: Synbranchiformes: Mastacembelidae)
FIGURE 2. Colouration in life of Macrognathus aureus, BMNH 2010. 5.24.26, holotype, 194.5 mm SL; Myanmar: Kachin State, Mogaung.
FIGURE 1. Macrognathus areus, BMNH 2010.5.24.26 in Macrognathus aureus, a new spiny eel of the M. aculeatus species group from the Upper Ayeyarwaddy River Drainage, Myanmar (Teleostei: Synbranchiformes: Mastacembelidae)
FIGURE 1. Macrognathus areus, BMNH 2010.5.24.26, holotype, 194.5 mm SL; Myanmar: Kachin State, Mogaung.
FIGURE 2. A in Sri Lanka's elusive freshwater spiny eel, Macrognathus pentophthalmos (Teleostei: Mastacembelidae)
FIGURE 2. A, Former and present distribution of Macrognathus pentophthalmos in Sri Lanka. The highlighted regions in red are potential hotspots for assessing the existence of extant populations of M. pentophthalmos. B, Kalu River at Ingiriya in the lowland floodplains of the wet zone. C, Mahaweli River at Mahiyanganaya draining towards the Mahaweli flood plains in the dry zone of Sri Lanka.
FIGURE 1. A in Sri Lanka's elusive freshwater spiny eel, Macrognathus pentophthalmos (Teleostei: Mastacembelidae)
FIGURE 1. A, juvenile Macrognathus pentophthalmos recorded in 2020. B, habitat at Pulasthigama, Polonnaruwa where the juvenile was recorded. C, habitat at Sanghabodhigama, Polonnaruwa where the D, adult M. pentophthalmos was recorded in 2022. E, Neighbor-joining phylogram based on K2P distances of 278 Macrognathus cox1 sequences with a focus on the Indian subcontinent and Sri Lanka. Bootstrap values> 70% are shown above the nodes. The cox1 sequence of M. pentophthalmos from Sri Lanka is in red. The alternating light and dark grey bars indicate the combined results of the species delimitation analyses, which detect two molecular operational taxonomic units for Macrognathus samples from mainland India and Sri Lanka. Numbers in parentheses for clades A and B represent the haplotype (only for clade A) and the sampling locality in the map. The double solidus (slash) in the stem of clades A and B indicates that it is not to scale. F, Geographic distribution of clade A (circle) and B (square) of the M. aculeatus group from mainland India and Sri Lanka. G, Median-joining haplotype network for clade A based on the analysis of a 630-bp fragment of the cox1 gene. The areas of the circles are proportional to the number of individuals sharing a given haplotype. The numbers of mutational steps between haplotypes are indicated by slashes.
FIGURE 5 in The Sri Lankan spiny eel, Macrognathus pentophthalmos (Teleostei: Mastacembelidae), and its enigmatic decline
FIGURE 5. Reproduction of Plate 10, Fig. 1 of Willughby (1686): 'Pentophthalmos'.
Figure 1 in Occurrence of regenerated tail in Indian freshwater spiny eel, Macrognathus pancalus Hamilton, 1822 (Teleostei: Mastacembelidae), in northern West Bengal, India
Figure 1. Map of the part of Jalpaiguri district showing the River Karala.
FIGURES 10–11. Triozocera macrognathus n in Two new species of Triozocera Pierce, 1909 (Insecta: Strepsiptera: Corioxenidae) from the Caribbean Islands
FIGURES 10–11. Triozocera macrognathus n. sp., thoracic sclerites on left and legs on right. Scale bars = 0.1 mm.
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OpenNeuro
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