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32 results for “Apteronotus”
Fig. 1 in On Apteronotus magdalenensis (Miles, 1945) (Gymnotiformes: Apteronotidae): a poorly known species endemic to the río Magdalena basin, Colombia
Fig. 1. Lateral view of the paratypes of Apteronotus magdalenensis: a) BMNH 1947.7.1.38, 335 mm TL.; b) USNM 123795, 287 mmTL.
Fig. 2 in On Apteronotus magdalenensis (Miles, 1945) (Gymnotiformes: Apteronotidae): a poorly known species endemic to the río Magdalena basin, Colombia
Fig. 2. Live specimens of Apteronotus magdalenensis, showing body and head. a) IAvH-P 9836 (WC 2005-09-27-01), male; b) IAvH-P 7026, (WC 2005-09-27-03), female. Scale bars = 10 mm. Arrows show position of eye.
Fig. 5 in On Apteronotus magdalenensis (Miles, 1945) (Gymnotiformes: Apteronotidae): a poorly known species endemic to the río Magdalena basin, Colombia
Fig. 5. General view of the habitat of Apteronotus magdalenensis in the río Magdalena. a: type locality Torrents of Honda; b: mouth of La Malena stream near Puerto Berrio in Antioquia Department (Photo a: Willian Crampton; photo b: courtesy of Pelayo-Villamil and Ochoa-Orrego).
Fig. 3 in On Apteronotus magdalenensis (Miles, 1945) (Gymnotiformes: Apteronotidae): a poorly known species endemic to the río Magdalena basin, Colombia
Fig. 3. Distribution of Apteronotus magdalenensis in the río Magdalena, Colombia. Star: type locality; Circles: additional records in the río Magdalena; Triangle: additional record in the lower río Cauca.
FIGURE 1 in Redescription of Apteronotus mariae (Eigenmann & Fisher, 1914) and the taxonomic status of Apteronotus jurubidae (Fowler, 1944) (Gymnotiformes: Apteronotidae)
FIGURE 1. Lateral and dorsal views of paratype of Apteronotus mariae, CAS 62345.
FIGURE 4 in Redescription of Apteronotus mariae (Eigenmann & Fisher, 1914) and the taxonomic status of Apteronotus jurubidae (Fowler, 1944) (Gymnotiformes: Apteronotidae)
FIGURE 4. Lateral view of anterior portion of Apteronotus jurubidae, ANSP 71435.
FIGURE 3 in Redescription of Apteronotus mariae (Eigenmann & Fisher, 1914) and the taxonomic status of Apteronotus jurubidae (Fowler, 1944) (Gymnotiformes: Apteronotidae)
FIGURE 3. Type locality of Apteronotus mariae at Giradort (black square); localities at Apulo (red) and Honda (green). Type locality of Apteronotus jurubidae at Río Jurubidá (black dot).
Figure 3 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 3. Left lateral view of anterior and central portions of head of: A, Apteronotus anu, 132 mm total length (TL), holotype, MCNG 24991. A and B on figure positioned proximate to paths indicated in black of laterosensory canal segments in infraorbitals 6 and 4, respectively. Note presence of fifth infraorbital in form of paler tubular laterosensory canal segment between pores as indicated by white arrow; B, Apteronotus pemon, 165 mm TL, FMNH 70012. A and B on figure positioned proximate to paths indicated in black of laterosensory canal segments in infraorbitals 6 and 4 respectively. Note absence of tubular fifth infraorbital and associated pores between those canal segments.
Figure 5 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 5. Map of north portion of South America showing geographical distribution of Apteronotus anu (1 = holotype locality); Apteronotus baniwa (2 = holotype locality); Apteronotus ferrarisi (3 = holotype locality); Apteronotus galvisi (4 = holotype locality), and Apteronotus leptorhynchus (5 = holotype locality). Some symbols represent more than one locality and/or lot of specimens.
Figure 2 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 2. Cleared and stained dentary of Apteronotus anu, 149 mm total length, MCZ 52023. Left side, inverted, medial view, anterior to left, showing posterior functional teeth approximately twice size of anterior teeth.
Figure 4. Apteronotus anu, 132 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 4. Apteronotus anu, 132 mm total length, male, holotype, MCNG 24991; Venezuela, Maracaibo, Rio Negro, at bridge, 12 km south of Machiques on road to Tokuko.
Figure 6 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 6. Principal components analysis on covariance matrix of log-transformed measurements of Apteronotus anu (squares) and Apteronotus rostratus (circles). Scatter plot of scores on first (PC1) and second (PC2) principal components.
Figure 11 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 11. Apteronotus galvisi, top, 184.4 mm total length, male, holotype, IAvHP 8133; bottom, 162.6 mm total length, female (missing caudal fin), paratype, IAvHP 8131. Colombia. Casanare, Río Meta drainage, Río Cusiana, at El Venado bridge, 305 m asl, 05°00′50″N, 72°41′30″W.
Figure 16 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 16. Map of north portion of South America showing geographical distribution of Apteronotus macrostomus (1 = holotype locality); Apteronotus pemon (2 = holotype locality); Apteronotus rostratus (3 = holotype locality); and Apteronotus spurrellii (4 = type locality). Some symbols represent more than one locality and/or lot of specimens.
Figure 12 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 12. Principal components analysis on covariance matrix of log-transformed measurements of Apteronotus galvisi (squares) and Apteronotus macrostomus (circles). Scatter plot of scores on second (PC2) and third (PC3) principal components.
Figure 19. Apteronotus rostratus, 132 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 19. Apteronotus rostratus, 132 mm total length, MBUCV V-10926; Panama, Río Pirre, tributary of Río Tuyra.
Figure 8. Apteronotus baniwa, 101 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 8. Apteronotus baniwa, 101 mm total length, female, paratype, MGNC 52994; Venezuela, Amazonas, Río Orinoco, 147 km east-south-east of San Fernando de Atabapo, 03°18′23′′N, 66°36′12′′W.
Figure 10. Apteronotus ferrarisi, 196 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 10. Apteronotus ferrarisi, 196 mm total length, female, paratype, MCNG 54597; Venezuela, Yaracuy, Río Yaracuy basin, Quebrada Guaquira on Hacienda Guaquira, south-east of El Peñon Reservoir, 10°17′40″N, 68°39′35″W.
Figure 13. Apteronotus leptorhynchus, 260 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 13. Apteronotus leptorhynchus, 260 mm total length, male, holotype, FMNH 53294; Guyana, Amatuk.
Figure 15. Apteronotus macrostomus, 265 in Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision
Figure 15. Apteronotus macrostomus, 265 mm total length, male, holotype, ANSP 70528; Colombia, Meta, Río Meta at Villavicencio.
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