Habitus. 1 Dineutus orientalis, 9.0 mm 2 Gyrinus gestroi, 4.8 mm 3 G. japonicus, 7.0 mm 4 G. pullatus, 6.0 mm 5 Orectochilus punctipennis, 6.5 mm 6 O. villosus, 5.7 mm.

 
 
  Part of: Lee D-H, Ahn K-J (2015) A taxonomic review of the Gyrinidae (Coleoptera) in Korea. ZooKeys 509: 87-107. https://doi.org/10.3897/zookeys.509.9442