(Bastian, 1865)    L = 0.84 mm; a = 22; b = 4; c = 9.2
(Maggenti, 1961) L = 0.58-0.85 mm; a = 16-25; b = 2.8-4.4; c = 6.8-9.7; V = 46-52
(Brzeski, 1963)    L = 0.6-0.9 mm; a = 18-22; b = 3.4-4.5; c = 7.6-10.1; V = 50-55
                             L = 0.9 mm; a = 23; b = 3; c = 10.1; spicules = 26.5 um
(Zullini, 1982)     L = 0.65-0.80 mm; a = 17-25; b = 3.0-4.3; c = 7.0-9.5; V = 47-52

Description (from Andrassy, 1985)
    Body ventrally arcuate.  Cuticle 2-3 um thick, distinctly annulated; annules 1.5-1.7 um wide on mid-body.  Lateral field 5 um wide, about 1/7 of body diameter, consisting of three longitudinal bands.  A few hypodermal glands present arranged in a row on each side of body.  Cuticle with scattered submedial setae.
    Head 12 um wide, not or only slightly set off, lips separate, fairly high, conoid.  Body at posterior end of oesophagus 3.2 times as wide as head.  Cephalic setae 3-3.5 um long, directed forward.  Amphids 2.5-3 um wide, 12-13 um posterior to head, located at middle of stoma or somewhat behind that.
    Stoma fairly broad, 21 um long, 1.7 times as long as head diameter or 1/9 - 1/10 of oesophagus length, respectively.  Protostom about 1/3 of stomatal tube.  Oesophagus 200-240 um long, bulbus strong, globular, cardial projection stout.  Distance between oesophagus and vulva a little longer than the oesophagus.  Excretory pore 118 um from anterior extremity, in 58% of oesophagus length.  Deirids about 10 cuticular annules before excretory opening.  Rectum as long as anal body diameter.  Vulva not protruding, vagina with weak muscle circle.  Each gonad 2-2.2 times as long as corresponding body diameter.  Distance between vulva and anus 3.7 times longer than tail.  Tail 98 um long, 4.2 times anal body diameter, 11 % of body length, ventrally arcuate.  Spur (= the last seta, located near tail tip) 2-3 tail tip diameters from posterior extremity; other caudal setae three pairs in number.
    Male similar to female but oesophageal bulb weaker.  Stoma 23 um long; excretory pore 146 um behind anterior body end.  Spicules somewhat asymmetrical: the right one 38 um, the left one 32 um long.  Gubernaculum with short caudal process.  Two large preanal tubular supplements: 23-24 um; lying at right angles to body axis.  A low preanal papilla, lever with spicules.  Tail more strongly curved than in female, with a ventral papilla and 8 pairs of setae.