TABLE 2. Comparison of the characters of the Polyzoniida and Siphonocryptida families, based on own observations and the literature (Hoffman 1982; Enghoff & Golovatch 1995; Enghoff et al. 2015). ORDERPolyzoniidaSiphonocryptidaFAMILYHirudisomatidaePolyzoniidaeSiphonotidaeSiphonocryptidaePosterior tergal marginupturnednot upturnednot upturnedupturned (in Hirudicryptus)Row of tubercles on tergitesabsentabsentabsentpresentOzopore positionclose to lateral tergal marginat some distance from lateral tergal marginat some distance from lateral tergal marginon peritremata on tergal marginParonychiumpresentabsentpresentabsentPosterior tergal margin of last tergite, shapestraightstraightroundedstraightTelsoncovered by tergitepartially covered by tergitepartially covered by tergitecovered by tergitePreanal ringcompletely fusedventrally dividedcompletely fusedventrally dividedAntennomereselongatedelongatedstoutstoutMale, gonoporesopening through 2nd coxaeopening through intersegmental membrane behind 2nd coxaeopening through 2nd coxaeopening through 2nd coxae

Published as part of Wesener, Thomas, Moritz, Leif & Akkari, Nesrine, 2023, Integrative redescription of the sucking millipede genus Dawydoffia Attems, 1953 with a description of a new species and a transfer to the family Hirudisomatidae (Diplopoda, Polyzoniida), pp. 418 in Zootaxa 5263 (3) on page 418, DOI: 10.11646/zootaxa.5263.3.6, http://zenodo.org/record/7804359