Caenis rivulorum, egg. SEM image, scale = 10 µm.

 
  Part of: Takayanagi T, Yoshizawa K (2021) The first record of Caenis rivulorum (Ephemeroptera: Caenidae) from Japan. Biodiversity Data Journal 9: e67413. https://doi.org/10.3897/BDJ.9.e67413