Male often strongly curved. Annulation coarse. Lateral field with four longitudinal lines. Spicules curved, 30-39 um long. Gubernaculum 7-7.5 um long. Tail always curved ventrally, with narrow bursa; drawn out into short, sometimes offset, terminal appendage.

Juveniles generally agreeing with females; posterior margins of annuli smooth to slightly irregular.

Mesocriconema kirjanovae has a similar tail as M. reedi, M. lamottei and M. yapoense (Van den Berg, 1991 assumed that these species could later prove to be synonyms). M. peruense is also similar.
Originally described from Hungary. Described as M. annulatiforme from The Netherlands and form South Africa (Van den Berg, 1991). Reported from Poland (Brzeski, 1998) and Belgium (Bert et al., 2003).
(from Geraert, 2010)

Females in glycerine (n = 15):  Measurements in Table 1.  Body ventally arcuate, tapering toward both extremities, especially posterior end.  Body annules retrorse, posterior edges smooth, sometimes with very fine crenation.  Anastomoses very rare.  Lip region not set off; four small submedian lobes present equally spaced around labial disc.  Oral opening I-shaped.  Second head annule wider than first, 20.6+ 0.26 (20-22), 16.0+ 0.47 (14-18), respectively.  Stylet moderately robust; knobs forwardly directed, 11.5+ 0.50 (11-12) wide.  Excretory pore about 100 form anterior end (Rex = 22 [21-23]); at level of esophagus base or anterior.  Spermatheca broadly oval to almost round, filled with spherical sperms.  Vulva open; anterior lip slightly protruding as small flap, ending with two thorn-like projections.  Vagina slightly curved, VL>VB.  Tail conical, uniformly decreasing to single or bilobed terminus.  Anal opening distinct, pit-like, usually located two, rarely three annules posterior to vulvar opening.
Fourth-stage juvenile female:  Similar to the adult female in all morphological characteristics, the only exception being the posterior edges of  body annules, which are characterized by distinct crenate posterior margins.
Male: not found.
Habitat and locality:  Specimens were collected around roots of Erica sp. at Capileira, Sierra Nevada, Granada, southeastern Spain.
(Description- Castillo and Vovlas, 1992)

Table 1.  Morphometrics of 15 females of Mesocriconema kirjanovae (Andrassy, 1962) Loof & DeGrisse, 1989 from southeastern Spain.