Plectus longicaudatus Bütschli, 1873 .

Dimensions of 14 females: L = 0.56 -0.71 mm; a = 25 - 31; b = 3.9-4.4; c = 4.9- 5.8; V = 7- 1144-476 -10.

The amphid measures 2.4-3.6 fx or 22-31 % of corresponding body width. The tail measures 8.6 -10.9 anal body widths. One intra-uterine egg: 47 x 19 fx. This species is sometimes difficult to separate from long-tailed specimens of P. rhizophilus .

Samples 15, 16, 21 and 65.