Plectus granulosus Bastian.

Allgén, C. A., 1953, Terrestrial nematodes from Jan Mayen, Annals and Magazine of Natural History 12 (6), pp. 665-688 : 670-671

Plectus granulosus Bastian.

Bastian, 1865, p. 120, pl. x, figs. 93-94.

de Man, 1884, pp. 107-108, pl. xvi, fig. 65, P. granulosus .

de Man, 1884, pp. 108-109, pl. xvi, fig. 66, P. schneideri .

Brakenhoff, 1913, pp. 291-293, pl. ii, figs. 11-12.

Micoletzky, 1914, pp. 466-468.

Cobb, 1914, pp. 53-54, p]. iv ~g. 10, P. tubifer .

Hofm ä nner-Menzel, 1914, pp, R 2-23, figs. 2-4, P. blanci .

Hofm ä nner-Menzel, 19] 5 p p 68-169, P. granulosus .

Hofmanner-Menzel,] 9J5, pp 172- 173, pl. vi, fig. 17 a-d, P. blanci .

Steiner, 1916 (1), pp. 323- 324

Steiner, 1916 (2), p. 53.

Micoletzky, 1922, pp. 235-240.

I t is necessary to remark only, that in contrast with the male described b y de Man, which shows three tubular ducts in fi'ont of the anus (compare de Man, fig. 65), the males in the present collection are provided with only t w o supplementary ducts, the hindmost d u c t not being developed.

The distance b e t w e e n the t w o ducts is smaller than the distance between the first t w o ducts in the specimens o f de Man. The h e a d is more strongly d e m a r c a t e d t h a n in the Dutch specimens, a n d the anterior p a r t o f the accessory piece is more strongly developed t h a n in de Man's figure.