Table 2 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 2. Selected diagnostic characters of species of the genus Mudwigglus Leduc, 2013 based on literature data supplemented with recent observations. CharactersM. patumukaM. nellyaeM. plebejusM. minutusM. macramphidiumM. micramphidium sp. nov.Body length (mm)0.79–0.950.28–0.310.46–0.680.38–0.530.60–0.760.59Tail length (µm)52–6320–3339–6544–5054–6966c’ ratio1.8–2.71.3–2.42.8–4.33.8–4.43.5–4.64.7Amphidial fovea length/width ratio2.52.02.02.3–2.73.52.2Vagina shapeoblique*straight**obliqueNA***straightNASpicule length (µm)31–3716–2318–261623–2515Gubernaculum apophysispresentpresentpresentpresentabsentabsentPrecloacal supplements3–422020Precloacal setae111212Terminal setae332200表2. 基于文献数据并补充近期观测结果的Mudwigglus属（Leduc, 2013）物种选定分类鉴别特征。 | 鉴别特征 | M. patumuka | M. nellyae | M. plebejus | M. minutus | M. macramphidium | M. micramphidium sp. nov. | |---------|------------|-----------|------------|-----------|-----------------|---------------------------| | 体长（mm） | 0.79–0.95 | 0.28–0.31 | 0.46–0.68 | 0.38–0.53 | 0.60–0.76 | 0.59 | | 尾长（μm） | 52–63 | 20–33 | 39–65 | 44–50 | 54–69 | 66 | | c’比值 | 1.8–2.7 | 1.3–2.4 | 2.8–4.3 | 3.8–4.4 | 3.5–4.6 | 4.7 | | 化感器窝长宽比 | 2.5 | 2.0 | 2.0 | 2.3–2.7 | 3.5 | 2.2 | | 阴门形状 | 斜向* | 直向** | 斜向 | 无数据*** | 直向 | 无数据*** | | 交合刺长（μm） | 31–37 | 16–23 | 18–26 | 16 | 23–25 | 15 | | 引带突起 | 存在 | 存在 | 存在 | 存在 | 不存在 | 不存在 | | 泄殖腔前附器 | 3–4 | 2 | 2 | 0 | 2 | 0 | | 泄殖腔前刚毛 | 1 | 1 | 1 | 2 | 1 | 2 | | 尾端刚毛 | 3 | 3 | 2 | 2 | 0 | 0 |