The formal descriptions of N. dentata by Kurata and N. hamatus by Turnbull and Middleton were published almost concurrently, leading to uncertainty over which name held nomenclatural priority.
Two scientists, Kurata and Turnbull and Middleton, independently described the species *N. dentata* and *N. hamatus*, respectively. This led to a dispute over which of their descriptions should be considered the official one due to the close timing of publication.