The purpose of this application, under Article 23.9.3 of the ICZN Code, is to conserve the specific name Gyrinus (Gyretes) dorsalis Brullé, 1837 (currently Gyretes dorsalis; Gyrinidae, Gyrininae, Orectochilini). Brullé's name is threatened by the senior primary homonym Gyrinus dorsalis Gyllenhal, 1808 (currently Gyrinus (Gyrinus) dorsalis; Gyrinidae, Gyrininae, Gyrinini), which already in the 19th century was only rarely used as a valid name, mostly as variety, aberration or synonym of Gyrinus (Gyrinus) marinus Gyllenhal, 1808. After 1899, the name was used only once as valid by Ádám in 1996. The use of the older homonym, G. dorsalis Gyllenhal, would considerably threaten nomenclatural stability. Since the conditions of Article 23.9.1 are not met, the matter is referred to the Commission for a ruling. It is proposed that the name Gyrinus (Gyretes) dorsalis Brullé, 1837 be conserved by ruling that it is not invalid by reason of being a junior homonym of Gyrinus dorsalis Gyllenhal, 1808.