Table 7 in A huge undescribed diversity of the subgenus Hystricochaetonotus (Gastrotricha, Chaetonotidae, Chaetonotus) in Central Europe

Table 7 (continued). Comparison of Chaetonotus (Hystricochaetonotus) superbus sp. nov., Chaetonotus (Hystricochaetonotus) arcanus sp. nov., and Chaetonotus (Hystricochaetonotus) luxus sp. nov. with most similar congeners. Abbreviation: n.a. = data not available.
CharacterCh. (H.) hystrix Mečnikow, 1865Ch. (H.) macrochaetus Zelinka, 1889Ch. (H.) persimilis Kolicka et al., 2018Ch. (H.) persetotus Zelinka, 1889Ch. (H.) machikanensis Suzuki & Furuya, 2011Body length87–130 µm65–153 µm115–136 µm75–100 µm95–125 µmBody shapeTenpin-shapedStockyStockyStockyTenpin-shapedCephalic pleuraeIndistinctly markedIndistinctly markedClearly demarcatedIndistinctly markedIndistinctly markedMouth cuticular teethAbsentn.a.Present (2)AbsentAbsentPharyngeal swellingsAbsentAbsentAbsentAbsentAbsentAnterior section of intestinen.a.n.a.Differentiatedn.a.Not differentiatedFurcal indentationV-shapedV-shapedV-shapedV-shapedBroadly V-shapedSize of dorsal scalesHead and neck: 1–3 µm Trunk: 5 × 7µmHead and neck: 2–5 µm Trunk: 8 × 9 µmHead: 1.4–6.4 × 1.2–6.2 µm Neck: 2.3–6.1 × 2.1–7.7 µm Trunk: 3.0–11.8 × 2.6–9.9 µmHead and neck: 5 × 6 µm Trunk: 7–8 µmHead: n.a. Neck: 3.5 × 5.0 µm Trunk: 8 × 9 µmLength of dorsal spinesHead and neck: 2–5 µm Trunk: 10–21 µmHead: 4–5 µm Neck: 7–10 µm Trunk: 17–25 µmHead: n.a. Neck: 7.9–13.8 µm Trunk: 2.0–8.2 µmHead and neck: 2–5 µm Trunk: 15–19 µmHead: n.a. Neck: 6 µm Trunk: 19.5 µmIncrease in length of dorsal spinesGradualAbruptGradualAbruptGradualLateral denticleConspicuousConspicuousIndistinctConspicuousConspicuousReferencesSchwank (1990)Schwank (1990)Kolicka et al. (2018)Schwank (1990)Suzuki & Furuya (2011)