Apteronotus caudimaculosus n. sp. (Gymnotiformes: Apteronotidae), a sexually dimorphic black ghost knifefish from the Pantanal, Western Brazil, with a note on the monophyly of the A. albifrons species complex. Author Carlos David de Santana text Zootaxa 2003 252 1 11 http://www.zoobank.org/urn:lsid:zoobank.org:pub:F8968B32-56CC-4502-B6E3-896FDF06684F journal article z00252p001 F8968B32-56CC-4502-B6E3-896FDF06684F A. anas .- CAS 56510, 1 ex., holotype ;