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Fig. 4. DAPI and CMA 3 in Identification of distinct evolutionary units in allopatric populations of Hypostomus cf. wuchereri Günther, 1864 (Siluriformes: Loricariidae): karyotypic evidence

Fig. 4. DAPI and CMA 3 stained chromosomal pairs from Mutum (a) and Una (b) Rivers, showing AT and GC-rich sites, respectively. The NOR-bearing pair is highlighted.

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Fig. 5. Hypostomus micromaculatus, MHNG 2674.028, 143.1 in Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the rio Negro basin in Brazil

Fig. 5. Hypostomus micromaculatus, MHNG 2674.028, 143.1 mm SL, Suriname, Gran River at Kossindo, Cajana.

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Fig. 4 in Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the rio Negro basin in Brazil

Fig. 4. Map of northern South America, showing distributions of Hypostomus kopeyaka (squares) and Hypostomus weberi (dots). Black symbols refer to type-localities.

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Fig. 1 in Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the rio Negro basin in Brazil

Fig. 1. Hypostomus kopeyaka, holotype, MZUSP 98764, 226.1 mm SL: dorsal, lateral, and ventral views.

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Fig. 4 in A new dark-saddled species of Hypostomus (Siluriformes: Loricariidae) from the upper rio Paraguay basin

Fig. 4. Lateral view of Hypostomus latifrons, NUP 2274: a) young specimen, 42.2 mm SL; b) large specimen, 200.4 mm SL.

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Fig. 3 in A new dark-saddled species of Hypostomus (Siluriformes: Loricariidae) from the upper rio Paraguay basin

Fig. 3. Hypostomus peckoltoides, paratype, ZSM 39427, 90.3 mm SL. Photographed alive by Andre Werner.

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Fig. 2 in A new dark-saddled species of Hypostomus (Siluriformes: Loricariidae) from the upper rio Paraguay basin

Fig. 2. Hypostomus peckoltoides, holotype, MZUSP 105226, 110.7 mm SL, from the rio Cuiabá, upper rio Paraguai basin, Mato Grosso State, Brazil.

Fig.4 in Cytogenetic characterization of Hypostomus nigromaculatus (Siluriformes: Loricariidae)

Fig.4. Metaphases of Hypostomus nigromaculatus stained with CMA and DAPI, respectively. a) and b): Mogi-Guaçu; c) and 3 d): tributaries of the rio Tibagi. The arrows indicate the NORs.

Fig. 3 in Cytogenetic characterization of Hypostomus nigromaculatus (Siluriformes: Loricariidae)

Fig. 3. Chromosomes bearing of Hypostomus nigromaculatus secondary constriction: a= sample from rio Mogi-Guaçu and b= sample from tributaries of the rio Tibagi; I- Giemsa-stained; II- silver nitrate staining; III- number of specimens examined.

Fig.1 in Cytogenetic characterization of Hypostomus nigromaculatus (Siluriformes: Loricariidae)

Fig.1. Hydrographic map showing rio Mogi-Guaçu, rio Tibagi, 1 = ribeirão Três Bocas and 2 = ribeirão dos Apertados (tributaries of the rio Tibagi).

Fig. 2 in Cytogenetic characterization of Hypostomus nigromaculatus (Siluriformes: Loricariidae)

Fig. 2. Karyotypes of Hypostomus nigromaculatus with conventional Giemsa staining: a) rio Mogi-Guaçu and b) tributaries of the rio Tibagi. Ag-NOR-bearing chromosomes from rio Mogi-Guaçu (c) and tributaries of the rio Tibagi (d) are framed.

Fig. 5 in Two new species of Hypostomus Lacépède (Teleostei: Loricariidae) from the upper rio Paraná basin, Central Brazil

Fig. 5. Hypostomus heraldoi, holotype, Brazil, Goiás State, Município de Caldas Novas, rio Pirapitinga, MZUSP 98771, 217.9 mm SL. Dorsal, lateral, and ventral views.

Fig. 4 in Two new species of Hypostomus Lacépède (Teleostei: Loricariidae) from the upper rio Paraná basin, Central Brazil

Fig. 4. Map of southeastern South America showing geographic distribution and type-locality (numbers) of Hypostomus heraldoi (dots; 1 = rio Pirapitinga), and H. denticulatus (squares; 2 = rio do Peixe).

Fig. 3. a in Two new species of Hypostomus Lacépède (Teleostei: Loricariidae) from the upper rio Paraná basin, Central Brazil

Fig. 3. a, Hypostomus denticulatus, paratype, NUP 4308, 194.3 mm SL, and b, H. multidens, NUP 5340, 157.0 mm SL.

Fig. 2 in Two new species of Hypostomus Lacépède (Teleostei: Loricariidae) from the upper rio Paraná basin, Central Brazil

Fig. 2. Bicuspid premaxillary teeth of a, Hypostomus denticulatus with symmetrical cusps, and b, H. ternetzi with asymmetrical cusps. Ventral view.

Fig. 1 in Two new species of Hypostomus Lacépède (Teleostei: Loricariidae) from the upper rio Paraná basin, Central Brazil

Fig. 1. Hypostomus denticulatus, holotype, Brazil, Goiás state, Município de Caldas Novas, rio do Peixe, tributary to rio Corumbá, MZUSP 98770, 161.9 mm SL. Dorsal, lateral, and ventral views.

Fig. 2 in A new pale-spotted species of Hypostomus Lacépède (Siluriformes: Loricariidae) from the rio Tocantins and rio Xingu basins in central Brazil

Fig. 2. Hypostomus faveolus, (a) MZUSP 86790, 77.1 mm SL, rio Araguaia basin, (b) MZUSP 90721, 140.5 mm SL, rio Araguaia basin, (c) MZUSP 91971, 75.0 mm SL, Xingu basin, (d) MZUSP 91971, 158.0 mm SL, rio Xingu basin; (b-d) photographed alive, (a) preserved specimens.

Fig. 1 in A new pale-spotted species of Hypostomus Lacépède (Siluriformes: Loricariidae) from the rio Tocantins and rio Xingu basins in central Brazil

Fig. 1. Hypostomus faveolus, holotype, Brazil, Mato Grosso, Cocalinho, Corixo da Saudade (Corixinho), 25 km NO of Cocalinho on road MT 326, rioAraguaia drainage. MZUSP 90722, 206.0 mm SL.

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Fig. 4 in A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the upper rio Paraná basin, Southern Brazil

Fig. 4. Southeastern portion of South America showing distribution of Hypostomus multidens in the upper rio Paraná basin (star = type-locatily 23º30'51''S/50º57'18''W). Each dot can represent more than one locality or lot.