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590 results for “Neotropical fish”
FIGURE 47 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 47 | Head of juveniles of Rhamphichthys pantherinus, UMMZ 230841, 125 mm LEA (above), and Rhamphichthys rostratus, UMMZ 216489, 110 mm LEA (below), showing the snout size differences early on development.
FIGURE 29 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 29 | Detail of the head of paratype of Rhamphichthys heleios, MCP 45545, 133 mm LEA, ilha do Martelo, Tefé, Amazonas, Brazil. Picture of the right side (figure horizontally inverted).
FIGURE 51 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 51 | Rhamphichthys rostratus, ANSP 187120, 520 mm LEA, Lawa Lawa River Cataract west of base camp 8 km W of Anapaiake, Sipaliwini, Suriname.
FIGURE 55 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 55 | Rhamphichthys rostratus, holotype of Rhamphichthys reinhardti, MNHN 3956, 600 mm LEA, Brazil.
FIGURE 50 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 50 | Scatter plots of PCA scores. A. PC 1 vs. PC 2; B. PC 1 vs. PC 3. PCA of Rhamphichthys pantherinus geographic populations: Red = Amazon; blue = Mearim (including R. atlanticus holotype); pink = Negro; golden = Tocantins (type-locality of R. marmoratus); brown = Tombetas (including types of R. longior); yellow = western Amazon (including R. pantherinus holotype) and grey = Xingu.
FIGURE 44 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 44 | Rhamphichthys pantherinus, holotype of Rhamphichthys longior, MZUSP 48507, 850 mm LEA, lago Paru at confluence of rio Trombetas and rio Paru-do-Oeste, Pará, Brazil.
FIGURE 20 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 20 | Rhamphichthys hahni, detail of head of holotype of Sternarchorhamphus hahni, ZMB 31367, Río Paraná near Corrientes, Corrientes, Argentina.
FIGURE 59 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 59 | Rhamphichthys rostratus, holotype of Rhamphichthys schomburgki, MNHN 3958, 700 mm LEA, Demerara, Guyana.
FIGURE 60 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 60 | Detail of the head of Rhamphichthys rostratus, holotype of Rhamphichthys schomburgki MNHN 3958, 700 mm LEA, Demerara, Guyana.
FIGURE 43 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 43 | Detail of the head of Rhamphichthys marmoratus, holotype of Rhamphichthys atlanticus, MZUSP 43612, 690 LEA, lago Viana tributary to Pindare-Mearim system, Maranhão, Brazil.
FIGURE 19 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 19 | Rhamphichthys hahni, holotype of Sternarchorhamphus hahni, ZMB 31367, 253 mm LEA, Río Paraná near Corrientes, Corrientes, Argentina.
FIGURE 18 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 18 | Scatter plots of PC1 vs. PC2 of morphometric data of populations of Rhamphichthys drepanium and R. hahni. Red = Rhamphicthhys hahni; blue = R. drepanium (Amazon) and gray = R. drepanium (Orinoco).
FIGURE 17 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 17 | Distribution of Rhamphichthys drepanium based on examined museum specimens. Red dot represents the type-locality.
FIGURE 16 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 16 | Posterior gas bladder in lateral view of A. Rhamphichthys drepanium, female, ANSP 128327. B. Rhamphichthys drepanium, female, ANSP 166557. C. Rhamphichthys drepanium, not sexed, ANSP 165186. D. Rhamphichthys hahni, not sexed, MACN 5983, 410 mm LEA. Anterior portion towards left. Scale bars = 10 mm.
FIGURE 8 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 8 | Distribution of Rhamphichthys apurensis based on examined museum specimens. Red dot represents the approximate type-locality.
FIGURE 11 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 11 | Rhamphichthys drepanium, INPA 17682, 375 mm LEA, confluence of rio Negro and rio Solimões at Costa do Catalão, Amazonas, Brazil.
FIGURE 10 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 10 | Detail of the head of holotype of Rhamphichthys drepanium, MZUSP 6893, 372 mm LEA, lago Janauari at confluence of rio Negro and rio Solimões, Amazonas, Brazil.
FIGURE 14 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 14 | Detail of the head of Rhamphichthys drepanium, FMNH 102111, LEA not measured, Río Suripa between pumping station of Hato Mercedes and mouth in Río Anaro, Barinas, Venezuela.
FIGURE 15 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 15 | Coloration pattern of the dorsum in Rhamphichthys. A. Rhamphichthys aprurensis, ANSP 162300, 390 mm LEA. B. Rhamphichthys drepanium, ANSP 181071, 313 mm LEA. C. Rhamphichthys hahni, FMNH108548, 370 mm LEA. D. Rhamphichthys lineatus, FMNH 114685, 290 mm LEA. E. Rhamphichhtys marmoratus MCP 39982, 320 mm LEA. F. Rhamphichthys rostratus, ANSP 187120, 520 mm LEA. G. Rhamphichthys heleios, INPA 42308, 335 mm LEA. Anterior portion towards right.
FIGURE 2 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 2 | Map showing the geographic distribution of Rhamphichthys in South America based on museum examined lots.
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