Nicholsina usta

Peter Wirtz, Carlos Eduardo L. Ferreira, Sergio R. Floeter, Ronald Fricke, Joao Luiz Gasparini, Tomio Iwamoto, Luiz Rocha, Claud, 2007, Coastal Fishes of Sao Tome and Principe islands, Gulf of Guinea (Eastern Atlantic Ocean) - an update., Zootaxa 1523, pp. 1-48: 15

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Nicholsina usta


Nicholsina usta  (Valenciennes, 1840)

UFES 160 (1 specimen) from the fish market in São Tomé City. Encountered over a dense growth of Caulerpa  sp. near Ilhéu das Cabras in about 10 m depth (SMNS 25233, 1 specimen). The eastern Atlantic Nicholsina usta  are generally considered to form the subspecies N. usta collettei  ZBK  Schultz, 1968. Two animals from São Tomé analysed by Robertson et al. (2006) were genetically distinct from four western Atlantic animals to such a degree that the authors suggested the recognition of the two subspecies as valid species.