Genus Nygolaimus
Cobb, 1913
Syn. (Nygolaimus)
Thorne, 1930
(Nygolaimium) Thorne, 1930
Definition: Nygolaiminae. Mural tooth
located on left submedian wall of stoma at the junction of anterior and
posterior parts. Anterior part lined by a cuticularized guiding sheath,
usually adpressed closely to the stoma wall. A plicated anterior
fixed ring surrounds the tip of the tooth when in the position of rest.
Guiding sheath is divided into 2 or 3 sections which are eversible through
the fixed anterior ring. Posterior part of stoma tubular with well-cuticularized
lining. Oesophagus well developed throughout, usually expanded beyond
the middle. Of the 5 oesophageal gland nuclei the dorsal is more
posterior than in most doryliams; the first pair of subventrals is well
forward and the second pair near the base of the oesophagus. 3 prominent
cells mark the junction of oesophagus and intestine. Ovaries paired,
opposed, reflexed. Spicules dorylaimoid, lateral guiding pieces and
a small gubernaculum present.
Type species: Nygolaimus pachydermatus Cobb, 1913
syn. N. (N.) pachydermatus Cobb, 1913 (Thorne, 1930)
-Goodey, 1963
Species found: at:
