Not publicRovno amber collection of the Schmalhausen Institute of Zoology in Kiev.

Holotype SIZK-Be-18b for Jubula polessica D.A.Mamontov, J.J.Atwood et Perkovsky in Mamontov, Atwood, Ignatov, Vasilenko, Legalov & Perkovsky

Holotype SIZK-Be-18c for Lejeunea aristovii D.A.Mamontov, Schäf.-Verw., K.Feldberg et Perkovsky in Mamontov, Schäfer-Verwimp, Feldberg, Vasilenko, Legalov & Perkovsky