Rectification of nomenclature for two species in the family Strombidae (Gastropoda)

As the Latin word urceus is a simple noun in apposition, the original spelling of the specific epithet derived directly from it must be retained (as urceus) in future, regardless of the gender of the genus with which it is combined (International Code of Zoological Nomenclature 1999, Article 31.2.1). The name microurceus is herein deemed to be a correct original spelling because it is in prevailing usage, and it must be retained with the original author and date (i.e., Kira, 1959) in future, regardless of the gender of the genus with which it is combined (International Code of Zoological Nomenclature 1999, Article 33.3.1).