Table 5 in A huge undescribed diversity of the subgenus Hystricochaetonotus (Gastrotricha, Chaetonotidae, Chaetonotus) in Central Europe

Table 5 (continued on next page). Comparison of new species of the subgenus Hystricochaetonotus Schwank, 1990.Abbreviation: n.a. = data not available.
CharacterCh. (H.) arcanus sp. nov.Ch. (H.) avarus sp. nov.Ch. (H.) gulosus sp. nov.Ch. (H.) iratus sp. nov.Ch. (H.) luxus sp. nov.Ch. (H.) mirabilis sp. nov.Ch. (H.) optabilis sp. nov.Ch. (H.) superbus sp. nov.Body length100 µm130 µm107 µm124 µm87–112 µm83‒107 µm108‒143 µm107 µmBody shapeStocky with a deeply U-shaped furcal indentationSlender, elongated with a deeply V-shaped furcal indentationStocky with a shallowly U-shaped furcal indentationSlender, elongated with a deeply V-shaped furcal indentationMore or less tenpin-shaped with a U-shaped furcal indentationTenpin-shaped with a broadly U-shaped furcal indentationSlender, elongated with a deeply V-shaped furcal indentationMore or less tenpin-shaped with a deeply U-shaped furcal indentationCephalic pleuraeOnly indistinctly markedClearly demarcatedEpipleurae clearly demarcated, hypopleurae only indistinctly markedClearly demarcatedClearly demarcatedOnly indistinctly markedOnly indistinctly markedClearly demarcatedHypostomiumBoomerang-like platePentagonal plate with two protuberancesTwo horizontal lamellaeTwo horizontal lamellae accompanied by tear-shaped protuberancesAbsentn.a.Rectangular plate with small central protuberance and two lamellaen.a.Mouth cuticular teethAbsent3Absent1Absent2AbsentAbsentPharynxWithout dilatationsWithout dilatationsWithout dilatationsWithout dilatationsWithout dilatationsWith anterior and posterior dilatationsWith anterior and posterior dilatationsWithout dilatationsNo. of scale rows121414121010–1216–1810–12No. of scales per dorsal central row1430–321222151740–4515Dorsal spinesAbruptly elongated in posterior trunk regionGradually elongatedGradually elongatedGradually elongatedAbruptly elongated in posterior trunk regionAbruptly elongated in posterior trunk regionGradually elongatedAbruptly elongated in trunk regionElongated posteriormost trunk lateral spinesAbsentAbsentAbsentAbsentAbsentPresentAbsentAbsentLateral denticlePresentAbsentPresentAbsentPresentPresentAbsentPresentLateral denticle membraneAbsentAbsentAbsentAbsentAbsentPresentAbsentAbsentVentral ciliary bands merged anteriorlyNoYesNoNoNoNoNoNo