Table 4 in Belgopeltula belgica (Vincx & Gourbault, 1992) gen. et comb. nov. and Mudwigglus micramphidium sp. nov. from the west coast of Sweden, and reappraisal of the genus Pseudaraeolaimus Chitwood, 1951 (Nematoda: Araeolaimida: Diplopeltidae)

Table 4. Selected diagnostic characters of genera of the family Diplopeltidae Filipjev, 1918 based on literature data supplemented with recent observations (modified after Tchesunov & Miljutina 2008).
AraeolaimusBelgopeltula gen. nov.CylindrolaimusCampylaimusDiplopeltisDiplopeltulaEdalonemaCuticular ornamentationabsentabsentabsentlongitudinal striae present or absentabsentlongitudinal striae present or absentten longitudinal ridgesOral openingapicalsubdorsalapicalsubdorsalapicalapical or subdorsalapicalAmphideal fovea shaperounded loopdouble loop in male, unispiral in femaleunispiralelongated loopelongated loopelongated looptransverse slitSubcuticular plate supporting amphidabsentabsentabsentabsentpresentpresent or absentabsentOcellipresentabsentabsentabsentpresentabsentabsentCervical setaepresentabsentabsentabsentpresentabsentabsentBuccal cavityconicalminutetubularminuteminutecylindricaltubularPharynxwith swelling at anterior ⅓with fusiform corpus and narrow postcorpuscylindricalcylindricalcylindricalcylindricalcylindricalFemale gonaddidelphicdidelphicdidelphic or monodelphic-prodelphicdidelphicdidelphicdidelphicmonodelphic-prodelphicOvariesoutstretchedreflexedoutstretchedoutstretchedoutstretchedoutstretchedoutstretchedCaudal glands open viaspinneretspinneretspinneretspinneretspinneretthree porescaudal glands absentIntasiaMetaraeolaimoidesMorlaxiaMudwigglusPararaeolaimusPseudaraeolaimusSoutherniellaCuticular ornamentationabsentabsentabsentabsentabsentabsentabsentOral openingapicalapicalsubventralapicalapical or subdorsalapicalapicalAmphideal fovea shapeunispiralrounded looprounded loopelongated looprounded loopelongated loopunispiralSubcuticular plate supporting amphidabsentabsentabsentabsentabsentabsentabsentOcelliabsentpresentabsentabsentabsentpresent or absentabsentCervical setaeabsentpresentabsentabsentabsentpresentabsentBuccal cavitytubularminuteminutebarrel-shapecup-shapedminutetubularPharynxwith basal bulbsubcylindricalwith basal bulbwith basal bulbcylindricalglandular posteriorlywith basal bulbFemale gonadmonodelphic-prodelphicdidelphicmonodelphic-prodelphicdidelphicdidelphicdidelphicdidelphicOvariesoutstretchedoutstretchedoutstretchedreflexedoutstretchedoutstretchedoutstretchedCaudal glands open viaspinneret?spinneretthree pores or spinneretthree poresspinneretspinneret