Pseudancistrus sidereus, a new species from southern Venezuela (Siluriformes: Loricariidae) with a redescription of Pseudancistrus. Jonathan W. Armbruster Zootaxa 2004 628 1 15 4NK8H Loricariidae Pseudancistrus CoL Animalia Siluriformes 14 Chordata species barbatus  MNHN A-9564, 1, holotype, 204.0; AUM 38023, 1, 126.6.