Tripylina ursulae ( Argo & Heyns, 1973 ) Tsalolikhin, 1983

Zhao, Zeng Qi, 2009, A review of the genus Tripylina Brzeski, 1963 (Nematoda: Triplonchida), with descriptions of five new species from New Zealand, Zootaxa 2238, pp. 1-24 : 21-22

Tripylina ursulae ( Argo & Heyns, 1973) Tsalolikhin, 1983

Synonym. Trischistoma ursulae Argo & Heyns, 1973

Measurements (after Argo & Heyns 1973; Tsalolikhin 1983). Females (n = 16): L = 780–1170 μm; a = 22– 26; b = 4.8–5.7; c = 13.6–27.2; V = 61–67%.

Male: not known.

Description (after Tsalolikhin 1983). Body curved ventrally, C- shaped when relaxed. Cuticle smooth, about 0.6–1.2 μm thick. Head conical, diameter of lip region 19.8–23.4 μm. Six long cephalic setae 13–15 μm long, or 65–70% of head diameter. Dorsal stomatal wall slightly thickened; dorsal tooth similar in size to subventral denticles, which are anterior to the dorsal tooth. A single subdorsal cervical seta about one body diameter from anterior end of body. Vulva simple, uterus very long.

Diagnosis and relationships. T. ursulae differs from all species in the genus except T. arenicola in having subventral denticles posterior to the dorsal tooth: all other species have the denticles anterior to the dorsal tooth ( Table 3).

T. ursulae is differentiated from T. arenicola by having the cervical seta located subdorsally about one body diameter from the anterior end of the body (midventral and more than two body diameters posterior in T. arenicola ).

Females of T. ursulae are similar to T. macroseta , T. manurewa sp. nov., T. tearoha sp. nov., T. tamaki sp. nov., T. sheri and T. arenicola in body length, but shorter than all other species ( T. longa , T. stramenti , T. yeatesi sp. nov. and T. kaikoura sp. nov.) ( Table 3).

Habitat and distribution. Holotype from soil bordering a furrow in a vineyard,in Cape Province, South Africa; paratypes from soils around ferns, bulbous plants, banana plants and cabbage plants. Etymology. Not stated.