Apteronotus eschmeyeri, a new species of ghost knifefish from the Magdalena Basin, Colombia (Gymnotiformes: Apteronotidae). Carlos David de Santana Javier A. Maldonado-Ocampo William Severi George Nilson Mendes Zootaxa 2004 410 1 11 FYRY Actinopterygii Apteronotidae Apteronotus Animalia Gymnotiformes 10 Chordata species mariae  FMNH 56774, holotype; CAS 62345, paratype, 1 ex.