Coastal Fishes of Sao Tome and Principe islands, Gulf of Guinea (Eastern Atlantic Ocean) - an update. Peter Wirtz Carlos Eduardo L. Ferreira Sergio R. Floeter Ronald Fricke Joao Luiz Gasparini Tomio Iwamoto Luiz Rocha Claudio L. S. Sampaio Ulrich K. Schliewen Zootaxa 2007 1523 1 48 6S7CN Pfaff, 1933 Pfaff 1933 Actinopterygii Gobiidae Nematogobius Animalia Perciformes Chordata species brachynemus  ZSM 34189 (10 specimens from Lagoa Azul, intertidal); ZSM 34188 (6 specimens from Lagoa Azul, intertidal); ZSM 34190 (20 specimens from Lagoa Azul, intertidal); UFES 134 and 135 (1 specimen each, from Sao Tome, no precise location data); ZSM 34733 (1 specimen from Principe, no precise location data); SMNS 23070 (5 specimens together with 4 Bathygobius burtonifrom Sao TomeCity); SMNS 23067 (1 specimen together with 1 Bathygobius burtonifrom Sao TomeCity); SMNS 23078 (4 specimens together with 10 Bathygobius burtonifrom Rolas Island); Figure 23.