Nicholsina Fowler, 1915
Xenoscarus Evermann & Radcliffe, 1917; (synonym)
Nicholsina denticulata Allen & Robertson, 1994
Xenoscarus denticulatus Evermann & Radcliffe, 1917; (valid as)
Xenoscarus hubbsi Harry, 1950; (synonym)
Nicholsina usta Robins & Ray, 1986
Callyodon auro-punctatus Valenciennes, 1840; (misspelling)
Callyodon auropunctatus Valenciennes, 1840; (synonym)
Callyodon ustus Valenciennes, 1840; (valid as)
Scarus dentiens Poey, 1861; (synonym)
Calliodon retractus Poey, 1868; (synonym)
Cryptotomus beryllinus Jordan & Swain, 1884; (synonym)
Nicholsina beryllina Fowler, 1915; (synonym)
N. u. collettei Randall, 1990
Nicholsina ustus collettei Schultz, 1968; (synonym)
24.4.2004 (2)
Additional information sources:
The taxonomic information and the basic database has been provided by; e-mail: Igor Sheremetyev ; This is a conversion from a database dump, and there are probably many odd things as result of automatic conversion.