Tylenchus macrophallus de Man, 1884, pp. 153-154, pl. xxiv, fig. 102.
Dimensions.—Body-length=0.. 800 mm., max. width=0.0 2 0 mm., oesophagus= 0.155 mm., t a i l=0.0 6 5 mm., v u l v a =0. 4 5 0 mm., α =40.0, β =5.16, y =12.31, V = 5 6. 2 5 p e r cent.
Although the tail of the Jan Mayen specimen is a little more slender, the single female, recorded in the sample from B8, seems in e v e r y respect to be quite typical.