Mesopsyllus dimorphus sp. n.: A P1 ♂, anterior (outer basal seta indicated by arrow in inset) B P2 ♂, anterior (outer basal seta indicated by arrow) C P2 endopod ♀, anterior (vestigial setae along inner margin and hook-like process along outer margin indicated by arrows) A–B based on holotype (NHMUK reg. no. 2013.1033), C based on paratype (NHMUK reg. no. 2013.1034).

  Part of: Mu F-h, Huys R (2017) New Mesopsyllus species from the Bohai Sea, China, re-evaluation of the validity of Vibriopsyllus Kornev & Chertoprud, 2008 and proposal of Sympodella gen. n. (Copepoda, Harpacticoida, Canthocamptidae). ZooKeys 718: 1-33.