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75 results for “Brachyhypopomus”
Fig. 18 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 18. Collection records for Brachyhypopomus brevirostris (circles). Precise locality of the lectotype is not known. Elevation data refers to altitude above mean sea level (see Fig. 2 for legend).
Fig. 6. Brachyhypopomus arrayae. a. UMSS 7048 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 6. Brachyhypopomus arrayae. a. UMSS 7048 (WC52.060707), holotype, immature male, 77 mm TL (head in lateral view, body in lateral and dorsal views); b. UF 177342 (WC54.060707), paratype, male, 97 mm TL (body in lateral view); c. ANSP 197574 (WC50.060707), paratype, female, 128 mm TL (body in lateral view); Bolivia, río Beni, Amazonas dr. Note the sexual dimorphism in body pigmentation, in which females are considerably darker. Specimens fixed in formalin and preserved in EtOH. Scale bars = 5mm.
Fig. 15. Brachyhypopomus bombilla. MCP 19847 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 15. Brachyhypopomus bombilla. MCP 19847 (part), male, 156 mm TL, non-type (head in lateral view, and body in lateral and dorsal view, specimen fixed in formalin and preserved in EtOH); Brazil, rio Ibicuí, Uruguay dr. Inset of head emphasizes outline of the opercular accessory electric organ with a black line. Scale bars = 5 mm.
Fig. 17. Brachyhypopomus brevirostris. a. MCP 45470 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 17. Brachyhypopomus brevirostris. a. MCP 45470 (WC11.110801b), immature female, 193 mm TL, (head only, specimen fixed in formalin); Brazil, rio Tefé, Amazonas dr. b. NMW 65040, lectotype, sex not determined, 163 mm TL (body in lateral view, specimen preserved in EtOH), Brazil, rio Guaporé, Amazonas dr. c. MCP 45262 (WCNR06.090600), male, 366 mm TL, non-type (body in lateral and dorsal view, specimen fixed in formalin and preserved in EtOH); d. MCP 45260 (WC02.180598), female, 305 mm TL, non-type (body in lateral view; specimen fixed in formalin and preserved in EtOH); Brazil, rio Solimões-Japurá confluence, Amazonas dr. Note the extreme sexual dimorphism in caudal-filament length. Scale bars = 5mm.
Fig. 9. Brachyhypopomus beebei. a. MCP 45462 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 9. Brachyhypopomus beebei. a. MCP 45462 (WC04.150801b), immature female, 134 mm TL, non-type (head in lateral view, body in lateral and dorsal view, specimen fixed in formalin); Brazil, rio Tefé, Amazonas dr. b. USNM 120753, holotype, 103 mm TL (originally 136 mm TL, tail now lost) (body in lateral view, specimen preserved in EtOH); Venezuela, río San Juan, Orinoco dr. c. MCP 45424 (WC04.010599), male, 204 mm TL, non-type (body in lateral view, specimen fixed in formalin and preserved in EtOH); d. MCP 45427 (WC01.130300), female, 153 mm TL, non-type (body in lateral view, specimen fixed in formalin and preserved in EtOH); Brazil, rio Solimões-Japurá confluence, Amazonas dr. Note the sexual dimorphism in caudal filament height. Scale bars = 5 mm.
Fig. 10 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 10. Collection records for Brachyhypopomus beebei (circles). Holotype location is marked with an open symbol. Elevation data refers to altitude above mean sea level (see Fig. 2 for legend).
Fig. 14 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 14. Collection records for Brachyhypopomus bennetti (circles), B. cunia (squares), and B. diazi (triangles). Holotype locations for B. bennetti and B. cunia, and location of lost holotype for B. diazi are marked with open symbols. Elevation data refers to altitude above mean sea level (see Fig. 2 for legend).
Fig. 5 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 5. Collection records for Brachyhypopomus alberti (circles), B. batesi (squares), and B. benjamini (triangles). Holotype locations are marked with open symbols. Elevation data refers to altitude above mean sea level (see Fig. 2 for legend).
Fig. 13. Brachyhypopomus bennetti. a. MCP 47021 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 13. Brachyhypopomus bennetti. a. MCP 47021 (WC13.160893), female, 158 mm TL (head in lateral view, and body in lateral and dorsal views, specimen fixed in formalin and preserved in EtOH). b. MCP 45359 (WC18.050497), male, 192 mm TL (body in lateral view, specimen fixed in formalin and preserved in EtOH). c. MCP 45359 (WC12.050497), female, 169 mm TL (body in lateral view, specimen fixed in formalin and preserved in EtOH); Brazil, rio Solimões-Japurá confluence, Amazonas dr. Note the sexual dimorphism in caudal filament height. Scale bars = 5 mm.
Fig. 2 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 2. Collection records for Brachyhypopomus based on 11,750 specimens from 2,642 georeferenced museum lots. Map of South and southern Central America based on HydroSHEDS data. Elevation data refers to altitude above mean sea level.
Fig. 3 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil
Fig. 3. Monthly variation of mean hepatosomatic index (HSI) for Brachyhypopomus draco males (above) and females (below) from September 2003 to August 2004. Vertical bars represent the standard deviation and the values between the brackets are the sample size.
Fig. 1 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil
Fig. 1. Monthly variation of mean gonadosomatic index (GSI) for Brachyhypopomus draco males (above) and females (below) from September 2003 to August 2004. Vertical bars represent the standard deviation and the values between the brackets are the sample size.
Fig. 4 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil
Fig. 4. Monthly variation of light photoperiod (min) (above); water temperature (ºC), depth (cm) and oxygen saturation (%) (middle); conductivity (µS/cm) and rainfall (mm) (below). Values in lagoa Verde from September 2003 to August 2004.
Fig. 6 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil
Fig. 6. Relative frequency distribution of Brachyhypopomus draco males (n = 175) and females (n = 175) for total length classes sampled from September 2003 to August 2004.
Fig. 5 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil
Fig. 5. Distribution of relative frequency of 150 oocyte diameters of 10 Brachyhypopomus draco females with highest GSI values sampled from September 2003 to August 2004. Vertical bars represent the standard deviation.
Fig. 7 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil
Fig. 7. Relative frequency distribution of caudal filament depth levels for Brachyhypopomus draco males. Caudal filaments depth Level 1 = from 0 to 1.5%; Level 2 = from 1.51% to 2.5%; Level 3 = from 2.51% to 3.50%.
Fig. 6 in Brachyhypopomus draco, a new sexually dimorphic species of Neotropical electric fish from southern South America (Gymnotiformes: Hypopomidae)
Fig. 6. Typical habitat of Brachyhypopomus draco; marshland in the Parque Estadual de Itapuã, Rio Grande do Sul, Brazil.
Fig. 2 in Brachyhypopomus draco, a new sexually dimorphic species of Neotropical electric fish from southern South America (Gymnotiformes: Hypopomidae)
Fig. 2. Brachyhypopomus draco (holotype, MCP 41540, male, 137.3 mm LEA). Detailed images of head, above, and tail, below.
FIGURE 4 in Brachyhypopomus gauderio, new species, a new example of underestimated species diversity of electric fishes in the southern South America (Gymnotiformes: Hypopomidae)
FIGURE 4. Map of southern Brazil, Uruguay, Argentina and Paraguay with the distribution of Brachyhypopomus gauderio. Squares represent non-type specimens. Empty circle represents the type locality.
FIGURE 3. A in Brachyhypopomus gauderio, new species, a new example of underestimated species diversity of electric fishes in the southern South America (Gymnotiformes: Hypopomidae)
FIGURE 3. A: Female of Brachyhypopomus gauderio (paratype UFRGS 8933, 101.6 mm LEA); B: Sexually dimorphic caudal filament of a mature male of Brachyhypopomus gauderio (paratype MZUSP 100308, 139.6 mm LEA, caudal filament length 44.8 mm).
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