Haplocaulus sommeri (Banina, 1977)

= Monintranstylum sommeri Banina, 1977

Record as epibiont on ostracods: This species was recorded as epibiont on Cypris sp. from ponds in Ropsha, Russia (Banina 1977).

Other hosts: It was also reported on Eucyclops serrulatus (Fischer, 1851) from Rophsa ponds, Russia (Banina 1977, Warren 1988, Jankowski 2007).

Remark. The genus Monintranstylum Banina, 1977 was synonymized with Haplocaulus by Jankowski (2007).