Mesopsyllus spiniferus sp. n.: A P3 ♂, anterior B P4 ♂, anterior C P3 endopod ♀, anterior (vestigial seta on enp-1 indicated by arrow) D P4 endopod ♀ (reduced seta on enp-1 indicated by arrow; setae on enp-2 not drawn at full length), anterior E P5 ♂, anterior (minute setae on exopod and endopodal lobe indicated by arrow) A–B, E based on holotype (NHMUK reg. no. 2013.1045) C–D based on paratype (NHMUK reg. no. 2013.1046).

 
 
  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. https://doi.org/10.3897/zookeys.718.13700