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FIGURE 7 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 7 | Coloration pattern of the lateral portion of body at about midlenght of LEA in Rhamphichthys. A. Rhamphichthys apurensis, ANSP 162300, 390 mm LEA. B. Rhamphichthys drepanium from Orinoco Basin, ANSP 181071, 320 mm LEA. C. Rhamphichthys drepanium, INPA 17682, 375 mm LEA. D. Rhamphichthys hahni, MZUSP 59297, 355 mm LEA. E. Rhamphichthys lineatus, MCP 26374, 340 mm LEA. F. Rhamphichhtys pantherinus, MCP 24814, 405 mm LEA. G. Rhamphichthys rostratus, ANSP 187120, 520 mm LEA. H. Rhamphichthys heleios, INPA 42308, 335 mm LEA. Anterior portion towards left.
FIGURE 4 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 4 | Rhamphichthys apurensis, ANSP 166484, 390 mm LEA, Laguna Mamo at Nuevo Mamo, Anzoátegui, Venezuela.
FIGURE 3 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)
FIGURE 3 | Scatter plots of principal component scores of 10 measurements. A. PC1 vs. PC2. B. PC1 vs. PC3. All seven species of Rhamphichthys: red = R. apurensis; blue R. drepanium; pink = R. hahni; yellow = R. heleios; pale green = R. lineatus; brown = R. pantherinus; and grey = R. rostratus. Grey circles in B represent the three putative morpho groups (G 1–3).
FIGURE 3 in Habitat modification driven by land use as an environmental filter on the morphological traits of neotropical stream fish fauna
FIGURE 3 | Representation of significant associations (p <0.05) identified by the fourth-corner method in the factorial map of the RLQ analysis. Red denotes a positive relationship between morphological traits and environmental variables, blue indicates a negative relationship, and grey represents nonsignificant relationships. Codes: Cond: Conductivity, Rock: Rocky substrate, Woody: Woody debris, Turb: Turbidity, Backw: Backwater, DO: Dissolved Oxygen, Temp: Temperature. See acronyms for the morphological traits in Tab. S3.
FIGURE 1 in Habitat modification driven by land use as an environmental filter on the morphological traits of neotropical stream fish fauna
FIGURE 1 | Study area. Location of sampling sites according with land use covers: S1 -Manoel Gomes, S2 - Pedregulho, S3 - Arquimedes, S4 - Bom Retiro, S5 - Rio da Paz, S6 - Nene, S7 - Cascavel, S8 - Afluente do Quati, and S9 - Quati.
FIGURE 2 in Habitat modification driven by land use as an environmental filter on the morphological traits of neotropical stream fish fauna
FIGURE 2 | Relationship between morphological traits and environmental variables of the first two axes of the RLQ of the species along the lower Iguaçu River. The figures of the fish were added to illustrate the species. Codes: Woody: Woddy debris, Cond: Conductivity, Rocky: Rocky substrate, Turb: Turbidity, Backw: Backwater, DO: Dissolved Oxygen, Temp: Temperature, Anc: Ancystrus sp., Syn: Synbranchus sp., Hyp: Hypostomus sp., Hep: Heptapterus sp., Cam: Cambeva sp., Cor: Corydoras sp., Rha: Rhamdia sp., Geo: Geophagus sp., Ast: Astyanax sp., Psa: Psalidodon sp., Bry: Bryconamericus sp., Gym: Gymnotus sp., Hop: Hoplias sp., Pha: Phalloceros sp., Poe: Poecilia sp.
Fig. 46. Brachyhypopomus walteri. a. MCP 45291 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 46. Brachyhypopomus walteri. a. MCP 45291 (WC16.180598), female, 145 mm TL (head, and body in lateral and dorsal view); b. MCP 45292 (WC05.190598), male, 168 mm TL (body in lateral view); Brazil, rio Solimões-Japurá confluence, Amazonas dr. Note sexual dimorphism in caudal-filament length. Specimen fixed in formalin and preserved in EtOH. Scale bars = 5mm.
Fig. 45. Brachyhypopomus verdii. a in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 45. Brachyhypopomus verdii. a. UF 148520 (WC24.090104), paratype, male, 106 mm TL (head in lateral view, and body in lateral and dorsal view); b. MUSM 35307 (WC06.160104), holotype, female, 79 mm TL (body in lateral view). Peru, río Ucayali, Amazonas dr. Note sexual dimorphism in caudal-filament length and height. Specimens fixed in formalin and preserved in EtOH. Scale bars = 5 mm.
Fig. 42 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 42. Collection records for Brachyhypopomus regani (circles). Holotype location is marked with an open symbol. Elevation data refers to altitude above mean sea level (see Fig. 2 for legend).
Fig. 41. Brachyhypopomus regani. MCP 47022 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 41. Brachyhypopomus regani. MCP 47022 (WC04.140301), holotype, female, 128 mm TL (head in lateral view, and body in lateral and dorsal view, specimen fixed in formalin and preserved in EtOH); Brazil, rio Solimões-Japurá confluence, Amazonas dr. Note prominent opercular accessory electric organ (pale structure). Scale bars = 5 mm.
Fig. 43. Brachyhypopomus sullivani. MUSM 39624 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 43. Brachyhypopomus sullivani. MUSM 39624 (WC48.210709), holotype, female, 108 mm TL (head in lateral view, and body in lateral and dorsal view, specimen fixed in formalin and preserved in EtOH); Peru, río Ucayali, Amazonas dr. Scale bars = 5 mm.
Fig. 40. Brachyhypopomus provenzanoi. MBUCV-V 35650 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 40. Brachyhypopomus provenzanoi. MBUCV-V 35650, holotype, immature, 87 mm TL (head in lateral view, and body in lateral and dorsal view, specimen fixed in formalin and preserved in EtOH); Venezuela, río Orinoco, Orinoco dr. Scale bars = 5 mm.
Fig. 39 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 39. Collection records for Brachyhypopomus pinnicaudatus (circles) and B. verdii (squares). Holotype locations are marked with open symbols. Elevation data refers to altitude above mean sea level (see Fig. 2 for legend).
Fig. 35. Brachyhypopomus occidentalis. a. NRM 27736 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 35. Brachyhypopomus occidentalis. a. NRM 27736, immature, 131 mm TL (head in lateral view, and body in lateral and dorsal view, specimen fixed in formalin and preserved in EtOH); Colombia, rio Baudó dr. b. BMNH 2012.6.13.1, largest syntype specimen, sex not determined, 147 mm TL (body in lateral view, specimen preserved in EtOH, note damage and subsequent regeneration to caudal filament); Colombia, río San Juan dr. c. IAVHP 7022 (WC04.230905), male, 162 mm TL. d. IAvHP 7022 (WC03.230905), female, 112 mm TL, non-type (bodies in lateral view, live individuals); Colombia, río Atrato dr. Note sexual dimorphism in caudal-filament length and height in c (male) & d (female). Scale bars = 5 mm.
Fig. 37. Brachyhypopomus palenque. a in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 37. Brachyhypopomus palenque. a. UF 180270 (WC05.160404), holotype, female, 149 mm TL (head in lateral view, and body in lateral and dorsal view, specimen fixed in formalin and preserved in EtOH); Ecuador, río Palenque, río Guayas dr. b. USNM 247230, male, 171 mm TL (body in lateral view, specimen fixed in formalin and preserved in EtOH); Ecuador, río Quinindé, río Esmeraldas dr. Note sexual dimorphism in caudal filament height. Scale bars = 5 mm.
Fig. 36 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 36. Collection records for Brachyhypopomus occidentalis (circles) and B. palenque (squares). The lectotype location for B. occidentalis and holotype location for B. palenque are marked with open symbols. Elevation data refers to altitude above mean sea level (see Fig. 2 for legend).
Fig. 44 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 44. Collection records for Brachyhypopomus sullivani (circles). Holotype location is marked with an open symbol. Elevation data refers to altitude above mean sea level (see Fig. 2 for legend).
Fig. 34. Brachyhypopomus menezesi. MZUSP 87147 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 34. Brachyhypopomus menezesi. MZUSP 87147, holotype, male, 100 mm TL (head in lateral view, and body in lateral and dorsal view, specimen fixed in formalin and preserved in EtOH); Brazil, rio Sapão, rio São Francisco dr. Note prominent opercular accessory electric organ (pale structure). Scale bars = 5 mm.
Fig. 47 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 47. Collection records for Brachyhypopomus walteri (circles). Holotype location is marked with an open symbol. Elevation data refers to altitude above mean sea level (see Fig. 2 for legend).
Fig. 30. Brachyhypopomus hendersoni. a. MCP 45408 in A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species
Fig. 30. Brachyhypopomus hendersoni. a. MCP 45408 (WC07.110898b), paratype, female, 162 mm TL, (head, and body in lateral and dorsal view, specimen fixed in formalin); Brazil, rio Tefé, Amazonas dr. b. MCP 45305 (WC13.031298), holotype, male, 146 mm TL (head in lateral view, body in lateral and dorsal view, specimen fixed in formalin and preserved in EtOH); Brazil, rio Japurá, Amazonas dr. Scale bars = 5 mm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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