12224 Sternopygus macrurus (Bloch & Schneider, 1801) Sternopygidae Glass knifefishes Sternopyginae Gymnotiformes Teleostei Longtail knifefish South America: Magdalena River basin; entire extent of the Amazon and Orinoco River basins below approximately 500 m elevation including Napo River of western Ecuador and Madre de Dios River of Peru; all drainages of the Guianas Shield; Atlantic drainages of northeastern Brazil (Tocantins, Parnaíba, Pindaré, Itapicuru, and Salgado rivers); São Francisco River basin; Rio de Janeiro, Brazil; Paraguay-Paraná River basin. AMNH 12486 Sternopygus macrurus AMNH 12592 Sternopygus macrurus AMNH 12976 Sternopygus macrurus AMNH 14037 Sternopygus macrurus AMNH 220972 Sternopygus macrurus AMNH 220991 Sternopygus macrurus AMNH 3895 Sternopygus macrurus AMNH 5352 Sternopygus macrurus AMNH 57923 Sternopygus macrurus AMNH 7665 Sternopygus macrurus FISH 592315 5 N 53 W Sternopygus macrurus FISH 592387 5 N 52 W Sternopygus macrurus FISH 592402 5 N 52 W Sternopygus macrurus FISH 592478 5 N 53 W Sternopygus macrurus FISH 592496 5 N 53 W Sternopygus macrurus FISH 592554 4 N 53 W Sternopygus macrurus FISH 592616 4 N 52 W Sternopygus macrurus FISH 592647 5 N 52 W Sternopygus macrurus FISH 592662 5 N 53 W Sternopygus macrurus FISH 592680 5 N 52 W Sternopygus macrurus FISH 592766 5 N 52 W Sternopygus macrurus FISH 592779 4 N 52 W Sternopygus macrurus FISH 592827 4 N 52 W Sternopygus macrurus FISH 593021 5 N 52 W Sternopygus macrurus FISH 593052 4 N 51 W Sternopygus macrurus FISH 593091 4 N 52 W Sternopygus macrurus FISH 593124 4 N 52 W Sternopygus macrurus FISH 593152 4 N 52 W Sternopygus macrurus FISH 593288 4 N 53 W Sternopygus macrurus FISH 593337 4 N 52 W Sternopygus macrurus FISH 593526 5 N 53 W Sternopygus macrurus FISH 593532 3 N 52 W Sternopygus macrurus FISH 593537 5 N 53 W Sternopygus macrurus FISH 593577 5 N 53 W Sternopygus macrurus FISH 593628 5 N 53 W Sternopygus macrurus FISH 593650 4 N 52 W Sternopygus macrurus FISH 593665 5 N 53 W Sternopygus macrurus FISH 593828 4 N 53 W Sternopygus macrurus FISH 593894 4 N 53 W Sternopygus macrurus FISH 593919 4 N 52 W Sternopygus macrurus FISH 594068 5 N 53 W Sternopygus macrurus FISH 594169 5 N 53 W Sternopygus macrurus FISH 594360 5 N 53 W Sternopygus macrurus FISH 594566 4 N 52 W Sternopygus macrurus FISH 594631 4 N 51 W Sternopygus macrurus FISH 594815 4 N 52 W Sternopygus macrurus FISH 594862 4 N 52 W Sternopygus macrurus FISH 594962 4 N 52 W Sternopygus macrurus FISH 595004 4 N 52 W Sternopygus macrurus FISH 595006 4 N 52 W Sternopygus macrurus FISH 595034 4 N 52 W Sternopygus macrurus FISH 595093 4 N 52 W Sternopygus macrurus FISH 595169 4 N 52 W Sternopygus macrurus FISH 595221 5 N 53 W Sternopygus macrurus FISH 595246 5 N 53 W Sternopygus macrurus FISH 595261 5 N 53 W Sternopygus macrurus FISH 595270 5 N 53 W Sternopygus macrurus FISH 595529 4 N 52 W Sternopygus macrurus FISH 595552 5 N 53 W Sternopygus macrurus FISH 595557 5 N 53 W Sternopygus macrurus FISH 595730 4 N 54 W Sternopygus macrurus FISH 596046 4 N 54 W Sternopygus macrurus FISH 596155 3 N 54 W Sternopygus macrurus FISH 596376 5 N 53 W Sternopygus macrurus FISH 596448 5 N 53 W Sternopygus macrurus FISH 596520 5 N 53 W Sternopygus macrurus FISH 596652 5 N 53 W Sternopygus macrurus FISH 596798 4 N 54 W Sternopygus macrurus FISH 596951 4 N 54 W Sternopygus macrurus FISH 597352 3 N 54 W Sternopygus macrurus FISH 597366 4 N 54 W Sternopygus macrurus FISH 597385 3 N 54 W Sternopygus macrurus FISH 597389 3 N 53 W Sternopygus macrurus FISH 597429 4 N 54 W Sternopygus macrurus FISH 597445 4 N 54 W Sternopygus macrurus FISH 597462 3 N 54 W Sternopygus macrurus FISH 597477 3 N 54 W Sternopygus macrurus FISH 597756 3 N 54 W Sternopygus macrurus FISH 597808 4 N 54 W Sternopygus macrurus FISH 597833 4 N 54 W Sternopygus macrurus FISH 597845 3 N 53 W Sternopygus macrurus FISH 597857 4 N 54 W Sternopygus macrurus FISH 599227 5 N 53 W Sternopygus macrurus FISH 599525 5 N 53 W Sternopygus macrurus FISH 599662 5 N 53 W Sternopygus macrurus FISH 601461 4 N 52 W Sternopygus macrurus FISH 601464 4 N 52 W Sternopygus macrurus FISH 601533 4 N 52 W Sternopygus macrurus FISH 601585 4 N 52 W Sternopygus macrurus FISH 601660 4 N 52 W Sternopygus macrurus FISH 601714 4 N 52 W Sternopygus macrurus FISH 601755 4 N 52 W Sternopygus macrurus FISH 601765 4 N 52 W Sternopygus macrurus FISH 601852 4 N 52 W Sternopygus macrurus FISH 601947 3 N 52 W Sternopygus macrurus FISH 602297 4 N 52 W Sternopygus macrurus FISH 602505 4 N 52 W Sternopygus macrurus FISH 602620 5 N 53 W Sternopygus macrurus FISH 602678 4 N 52 W Sternopygus macrurus FISH 602878 4 N 52 W Sternopygus macrurus FISH 603087 5 N 52 W Sternopygus macrurus FISH 603469 2 N 52 W Sternopygus macrurus FISH 603937 5 N 53 W Sternopygus macrurus FISH 603958 4 N 52 W Sternopygus macrurus FISH 603965 4 N 52 W Sternopygus macrurus FISH 603996 5 N 52 W Sternopygus macrurus FISH 604349 5 N 53 W Sternopygus macrurus FISH 604412 5 N 53 W Sternopygus macrurus FISH 604485 3 N 52 W Sternopygus macrurus FISH 604504 4 N 52 W Sternopygus macrurus FISH 604604 3 N 52 W Sternopygus macrurus FISH 604635 3 N 52 W Sternopygus macrurus FISH 604653 4 N 52 W Sternopygus macrurus FISH 604755 4 N 52 W Sternopygus macrurus FISH 604783 4 N 52 W Sternopygus macrurus FISH 604926 5 N 54 W Sternopygus macrurus FISH 604952 3 N 52 W Sternopygus macrurus FISH 604991 3 N 52 W Sternopygus macrurus FISH 605037 3 N 52 W Sternopygus macrurus FISH 605061 5 N 53 W Sternopygus macrurus FISH 605094 2 N 54 W Sternopygus macrurus FISH 605174 3 N 53 W Sternopygus macrurus FISH 605321 3 N 52 W Sternopygus macrurus FISH 605345 4 N 51 W Sternopygus macrurus FISH 605348 3 N 52 W Sternopygus macrurus FISH 605406 4 N 53 W Sternopygus macrurus FISH 605453 4 N 53 W Sternopygus macrurus FISH 605560 3 N 54 W Sternopygus macrurus FISH 605590 5 N 53 W Sternopygus macrurus FISH 605637 4 N 53 W Sternopygus macrurus FISH 605693 3 N 52 W Sternopygus macrurus FISH 605720 3 N 52 W Sternopygus macrurus FISH 605775 4 N 53 W Sternopygus macrurus FISH 605798 5 N 53 W Sternopygus macrurus FISH 605910 5 N 54 W Sternopygus macrurus FISH 606014 4 N 52 W Sternopygus macrurus FISH 606055 3 N 52 W Sternopygus macrurus FISH 606185 4 N 52 W Sternopygus macrurus FISH 606286 3 N 52 W Sternopygus macrurus FISH 606386 4 N 52 W Sternopygus macrurus FISH 606620 3 N 52 W Sternopygus macrurus FISH 607055 4 N 52 W Sternopygus macrurus FISH 607214 4 N 53 W Sternopygus macrurus FISH 607332 5 N 53 W Sternopygus macrurus FISH 607670 3 N 53 W Sternopygus macrurus FISH 607721 5 N 53 W Sternopygus macrurus FISH 607833 4 N 52 W Sternopygus macrurus FISH 607882 3 N 52 W Sternopygus macrurus FISH 607937 3 N 52 W Sternopygus macrurus FISH 608041 3 N 52 W Sternopygus macrurus FISH 608190 3 N 52 W Sternopygus macrurus FISH 608248 4 N 53 W Sternopygus macrurus FISH 608260 3 N 52 W Sternopygus macrurus FISH 608280 3 N 52 W Sternopygus macrurus FISH 608377 4 N 53 W Sternopygus macrurus FISH 608436 3 N 53 W Sternopygus macrurus FISH 608642 4 N 53 W Sternopygus macrurus FISH 608646 4 N 53 W Sternopygus macrurus FISH 609148 3 N 52 W Sternopygus macrurus FISH 609257 2 N 52 W Sternopygus macrurus FISH 609330 2 N 52 W Sternopygus macrurus FISH 609334 2 N 52 W Sternopygus macrurus FISH 609458 2 N 52 W Sternopygus macrurus FISH 609459 2 N 52 W Sternopygus macrurus FISH 609572 2 N 52 W Sternopygus macrurus FISH 610701 4 N 54 W Sternopygus macrurus FISH 611145 3 N 52 W Sternopygus macrurus FISH 611301 4 N 54 W Sternopygus macrurus FISH 611569 5 N 54 W Sternopygus macrurus FISH 611686 3 N 52 W Sternopygus macrurus FISH 611798 3 N 52 W Sternopygus macrurus FISH 611830 2 N 52 W Sternopygus macrurus FISH 611841 2 N 52 W Sternopygus macrurus FISH 612002 3 N 52 W Sternopygus macrurus FISH 612041 3 N 52 W Sternopygus macrurus FISH 612145 3 N 52 W Sternopygus macrurus FISH 612275 2 N 52 W Sternopygus macrurus FISH 612311 2 N 52 W Sternopygus macrurus FISH 612514 2 N 52 W Sternopygus macrurus FISH 612574 2 N 52 W Sternopygus macrurus ZMH 11636 Sternopygus macrurus ZMH 11640 1903 Sternopygus macrurus ZMH 11638 1906 Sternopygus macrurus ZMH 11637 1909 Sternopygus macrurus ZMH 11635 1910 Sternopygus macrurus ZMH 11639 1910 Sternopygus macrurus ZMH 11633 1924 Sternopygus macrurus ZMH 11634 1924 Sternopygus macrurus AMNH 9616 1929 Sternopygus macrurus AMNH 17611 1937 Sternopygus macrurus ZMH 11641 1938 Sternopygus macrurus AMNH 39822 1964 Sternopygus macrurus AMNH 39858 1964 Sternopygus macrurus AMNH 40024 1964 Sternopygus macrurus AMNH 40159 1964 Sternopygus macrurus AMNH 217667 1979 Sternopygus macrurus AMNH 73090 1983 Sternopygus macrurus AMNH 77815 1983 Sternopygus macrurus AMNH 58664 1984 Sternopygus macrurus AMNH 91000 1990 Sternopygus macrurus AMNH 91001 1990 Sternopygus macrurus AMNH 91002 1990 Sternopygus macrurus AMNH 91003 1990 Sternopygus macrurus FISH 386812 13 S 50 W 1994 Sternopygus macrurus 2 - 5 m