FIGURE 1 |
Prodontocharax aquilaepinnae, Peru, Junín, Satipo, Tambo River, Huallaga River basin, upper Amazonas River basin; A. MUSM 38647, holotype, male, 49.9 mm SL, Cubitiali stream; B. MUSM 38591, paratype, female, 51.9 mm SL, Mayapo River. Photos: Dario F. Fuster and Junior Chuctaya.
FIGURE 2 |
Prodontocharax aquilaepinnae, ANSP 116450, 47.6 mm SL, paratype. Scanning electronic microscopy (SEM) image of left side upper and lower jaws teeth. A. Premaxilla. B. Maxilla; arrow indicates the twisted posterior edentulous portion of the maxilla. C. Dentary; arrow indicates the separation of an anterior large tooth series angled and discontinuous with the posterior small tooth series.
FIGURE 3 |
Lamellae of central median raphe of olfactory rosette of Prodontocharax aquilaepinnae, MUSM 14855, paratypes, male, 43.8 mm SL (left), female, 52.1 mm SL (right), Peru, Huánuco, Tingo Maria, Huallaga River, Las Pavas stream. Photos: Junior Chuctaya.
FIGURE 4 |
Map of central and northern South America showing the distribution of Amblystilbe howesi (red dots), Prodontocharax melanotus (yellow dots) and P. aquilaepinnae (gray dots). Some symbols represent more than one lot or locality. Stars represent the type localities. Red triangle represents the type-locality of P. alleni.
FIGURE 5 |
Type-locality of Prodontocharax aquilaepinnae, Cubiriali stream, Tambo River basin, Huallaga River basin, Junín, Peru. Photo: Jessica Espino.
FIGURE 6 |
Prodontocharax melanotus.A. CAS 59793, Lectotype (Copyright The California Academy of Sciences, Ichthyology Section). B. CAS 117471, Paralectotype, 47.5 mm SL, Tumupasa, 30 mi NW of Rurrenabaque, La Paz, Bolivia. C. ANSP 143528, 36.5 mm SL, Shintuya, Alto Madre de Dios, Peru. Photos B and C by Luiz R. Malabarba.
FIGURE 7 |
Prodontocharax melanotus. Live not preserved specimens. A. Colorado River, Rerserva Comunal Amarakaeri, Peru. B. Estación Biológica Villa Carmen, Piñi Piñi River, Peru. Photos: Julio Araujo.
FIGURE 8 |
Prodontocharax melanotus, ANSP 143528, 35.5 mm SL. Scanning electronic microscopy (SEM) image of left side upper and lower jaws teeth. A. Maxilla left above and right below; arrow indicates the twisted posterior edentulous portion of the maxilla. B. Premaxilla in frontal (top) and medial (bottom) views. C. Dentary; arrow indicates the separation of an anterior large tooth series angled and discontinuous with the posterior small tooth series (at the top in detail).
FIGURE 9 |
Lamellae of central median raphe of olfactory rosette of Prodontocharax melanotus, MUSM 53623, male, 44.4 mm SL (left), female, 49.9 mm SL (right), Colorado River, Madre de Dios, Peru. Photos: Junior Chuctaya.
FIGURE 10 |
Collection locality of Prodontocharax melanotus, near confluence between the Manu and Madre de Dios rivers, Alto Madre de Dios, Peru.
FIGURE 11 |
Amblystilbe howesi. A. Holotype, ANSP 69070, 41.8 mm SL, Boca Chapare, Chimore River, Cochabamba, Bolivia. B. MCP 39868, 41.1 mm SL, Mamoré River at Cristo Rei district, Madeira River basin, Guajará-Mirim, Rondônia, Brazil. Photos: Luiz R. Malabarba.
FIGURE 12 |
Amblystilbe howesi, MCP 39868, 38.7 mm SL. SEM image of left side upper and lower jaws teeth. A. Premaxilla (with at least two missing teeth). B. Maxilla. C. Dentary.
FIGURE 13 |
Amblystilbe howesi. A. UFRGS 21765, 40.0 mm SL, B. UFRGS 21754, 33.0 mm SL, Juruá River, 2 km above mouth of Juburi, Carauari, Amazonas, Brazil. C. CAS 119050, paratype of Prodontocharax alleni, 28.1 mm SL, Ucayali River, Cashiboya, Ucayali, Peru. Photos: Luiz R. Malabarba.
FIGURE 14 |
Collection locality of Amblystilbe howesi, near Contamana, Ucayali River basin, Ucayali, Peru.
FIGURE 15 |
Principal Components Analysis (PCA) comparing raw data between the type specimens of Amblystilbe howesi (blue circles, n = 10) and Prodontocharax alleni (red squares, n = 19). PC1 was not considered to avoid influence of size variable. Full symbols are from the holotypes.
TABLE 1 |
Morphometric data of Prodontocharax melanotus, lectotype (L, CAS 59793), paralectotypes (CAS 117471) from Beni River basin, and non-types (AMNH 39738, ANSP 143527, 143528, 143530, 143531, 143534, 143536, 143537, MZUSP 27807, USNM 303023, 303147, 303149, 325193, 325196, 325221, 326908, 356443) from upper Madeira River basin (Madre de Dios, Beni, and Guaporé rivers), and P. aquilaepinnae, holotype, male (H, MUSM 38647), and paratypes (ANSP 116450) from Huallaga River basin.
TABLE 2 |
Morphometric data of Amblystilbe howesi, holotype (H, ANSP 69070), paratypes (ANSP 69071, n = 10) from Boca Chapare, Chimore River basin, and non-types from the Amazonas River basin (ANSP 149926, MCP 39868, MZUSP 12405, 12406, 12407, 25943, USNM 356381, 280541, n = 99), and Prodontocharaxalleni, holotype (H, CAS 117472) and paratypes (CAS 117473, 119050, USNM 157366, n = 20), from the Ucayali River basin.
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