Genus Iotonchus
(Cobb, 1916) Altherr, 1950
Syn. Mononchus (Iotonchus) Cobb, 1916
Definition: Mononchidae. Stoma narrow oval or very wide and
barrel-shaped; strongly cuticularized; dorsal tooth in posterior half,
pointing forward; sub-ventral teeth lacking. Amphid edges may be
slightly crenate. Oesophago-intestinal junction tuberculate. Ovaries usually
paired, rarely single. Tail narrow and much elongated or short and conical.
Caudal glands and terminal duct rarely absent.
Type species: Iotonchus gymnolaimus (Cobb, 1893) Andrássy,
1958
syn. Mononchus gymnolaimus Cobb, 1893
M. (Iotonchus)
gymnolaimus
Cobb, 1893 (Cobb, 1916)
(Description- Goodey, 1963)
Specimens from Costa Rica
Iotonchus
sp. (1)