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13 results for “Acestrocephalus”
Fig. 14. Acestrocephalus pallidus, MZUSP 35624 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 14. Acestrocephalus pallidus, MZUSP 35624, immature female, 60.5 mm SL, ilha do Puruzinho, rio Madeira.
Fig. 13. Acestrocephalus acutus, MZUSP 31650 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 13. Acestrocephalus acutus, MZUSP 31650, holotype, mature female, 80 mm SL, igarapé do Cinzento, rio Itacaiunas, rio Tocantins drainage.
Fig. 10. Acestrocephalus maculosus, MZUSP 53974 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 10. Acestrocephalus maculosus, MZUSP 53974, holotype, 79 mm SL, immature female, córrego Água Parada, rio Tocantins drainage.
Fig. 9. Acestrocephalus boehlkei, MZUSP 12993 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 9. Acestrocephalus boehlkei, MZUSP 12993, paratype, 85 mm SL, mature male, Río Punino, Río Napo drainage.
Fig. 8 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 8. Map of northern and central South America showing the geographic distribution of the species of Acestrocephalus. Some symbols may represent more than one locality.
Fig. 6 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 6. Scatter plot of number of maxillary teeth on standard length for specimens of Acestrocephalus sardina, A. boehlkei. Acestrocephalus nigrifasciatus, A. pallidus, and A. acutus. The figure is not intended to show species differences therefore regression lines were not drawn and regression analyses were not performed. The primary purpose is to express the tendencies of the number of teeth on the maxilla to increase according to an increase in standard length. For the species represented by large number of specimens the data points are widely scattered.
Fig. 4 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 4. Scatter plot of eye diameter on head length for specimens of Acestrocephalus sardina, A. boehlkei, A. pallidus, A. nigrifasciatus and A. acutus. Acestrocephalus sardina and A. nigrifiasciatus have larger eye diameters than the other species suggesting the recognition of two species groups with respect to this character (see diagnoses of A. sardina and A. nigrifasciatus).
Fig. 5 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 5. Schematic drawings of external view of muscles covering the anterior portion of the swim bladder in A – Acestrocephalus sardina (MZUSP 29241); B – A. boehlkei (MZUSP 38699); C – A. maculosus (MNRJ 12657); D – A. stigmatus (MZUSP 10422); E – A. nigrifasciatus (MCP 30420); F – A. acutus (MNRJ 17612); G – A. pallidus (MZUSP 73471). Anterior towards left; 1 plr (first pleural rib); 2 plr (second pleural rib); os (obliquus superioris); ls (lateralis superficialis); oi (obliquus inferioris). Not drawn to scale.
Fig. 3. Acestrocephalus sardina, MZUSP 81209, 93 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 3. Acestrocephalus sardina, MZUSP 81209, 93 mm SL, immature female, rio Tiquié, rio Negro drainage.
Fig. 1. Acestrocephalus maculosus, MNRJ 12657 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 1. Acestrocephalus maculosus, MNRJ 12657, paratype, 44 mm SL. External view of muscles covering the anterior portion of the swim bladder. Anterior towards left; skin and adipose tissue removed.
Fig. 2. Acestrocephalus sardina, ANSP 39307 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 2. Acestrocephalus sardina, ANSP 39307, holotype, 31.4 mm SL; rio Madeira, Brazil.
Fig. 12. Acestrocephalus nigrifasciatus, MCP 30420 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 12. Acestrocephalus nigrifasciatus, MCP 30420, holotype, mature male, 83 mm SL, rio Arinos, rio Tapajós drainage.
Fig. 11. Acestrocephalus stigmatus, MNRJ 24997 in Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Fig. 11. Acestrocephalus stigmatus, MNRJ 24997, paratype, 82 mm SL, mature female, rio das Mortes, rio Araguaia basin.
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