Lip region with six
(elaborate cephalic appendages) and 6-10 cephalic papillae. Didalphic
Nematodes in the Chambersiellidae are frequently reported in assocaiation
with bark beetles. The relationships are probably phoretic in that the
nematodes are transported from tree to tree or to insect galleries by the
Sanwal, K. C. 1971. Geraldius n. gen.,
Macrolaiminae n. subfam., with a revision of the subfamilies and genera
of Chambersiellidae (Nematoda). Canadian J. Zoology 49:965-967.