TABLE 4 in Review of Thelastoma Leidy, 1849 (Nematoda: Oxyuridomorpha: Thelastomatidae) and description of T. variabile sp. nov. from the North American indigenous millipede Narceus americanus (Spirobolida: Spirobolidae)

TABLE 4. Holotype and male and female paratype measurements for Thelastoma variabile sp. nov. CV: coefficient of variation. Paratype females (n = 59)Holotype FemaleMeanSDRangeCVParatype MaleMeasurements (µm)Length5,7354,575921.62,830‒6,06320.11,197Width at midbody32829758.1193‒40619.587Width of first annule15.413.31.99.3‒17.214.010.3Width of annules 2‒119.211.01.577.9‒14.614.25.9Annule width posterior to nerve ring15.413.02.48.9‒18.418.35.5Esophagus length66660756.9489‒7149.4176Corpus, maximum width40.741.23.635.7‒50.18.819.4Nerve ring to head26223724.0184‒28510.171.6Basal bulb length15614411.8120‒1648.361.5Basal bulb width11210611.088‒12610.337.0Secretory-excretory pore (S-E pore) to head68258671.1435‒72512.1307Egg length73.170.35.957.2‒81.58.4‒Egg width54.149.53.941.4‒57.87.9‒Vulva to head2,5172,1063601,358‒2,65117.1‒Anus to head4,0683,4456232,221‒4,39218.1‒Tail1,6671,130382422‒1,78533.8165Cloaca to Head (Male)‒‒‒‒‒1032Posterior papillae to tail tip‒‒‒‒‒120Spicule length‒‒‒‒‒29.8Ratiosa (length/maximum width)17.515.52.4211.2‒24.415.613.8b (length/head to esophagus)8.67.50.945.49‒9.0512.66.8c (length/tail length)3.44.31.063.09‒7.6524.57.3d (head to nerve ring/head to esophagus)0.390.390.020.35‒0.475.90.41V ([head to vulva/body length]) × 10043.946.43.241.5‒53.26.8‒V’ (head to vulva/head to anus)0.620.610.020.57‒0.652.6‒x (S-E pore to head/body length)0.120.130.010.11‒0.1610.80.26z (esophagus length/S-E pore to head)0.981.040.050.97‒1.184.60.57