Sunagocia, a Replacement Name for the Platycephalid Genus Eurycephalus (Actinopterygii : Percomorpha), with Taxonomic Comments on the Species of the Genus

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The genus Sunagocia is established as a replacement name for the platycephalid fish genus Eurycephalus Imamura, 1996, which is preoccupied by the cerambycid beetle genus Eurycephalus Gray in Cuvier and Griffith, 1832. The genus currently contains three valid species : S. arenicola (Schultz, 1966), comb, nov., S. carbunculus (Valenciennes in Cuvier and Valenciennes, 1833), comb, nov., and S. otaitensis (Cuvier in Cuvier and Valenciennes, 1829), comb. nov. It is confirmed that Cuvier satisfied the nomenclatural requirements for availability of this last species, although several investigators have attributed the name to Parkinson, who made the unpublished drawing of S. otaitensis used in its original description and named the species. Two measurements, of head length and especially interorbital width, are helpful in distinguishing S. carbunculus, S. arenicola, and S. otaitensis from each other.