Genus Lelenchus
Andrassy, 1954
Tylenchus (Lelenchus) Andrassy, 1954
Diagnosis (from Raski and Geraert, 1985)
Ecphyadophorinae.
Slender nematodes, 'a' values range from 37-93; almost straight when
fixed and mounted in glycerine. Cephalic region high, smooth, narrowed
dorso-ventrally; amphid apertures long slits beginning near small oral
cap or plate extending longitudinally to posterior margin of smooth cephalic
region. Sclerotization delicate; stylet slender but distinct with small
knobs (except in L. elegans knobs not visible); dorsal gland oriface
near knobs (except in L. elegans appears to enter base of stylet).
Median bulb slender, fusiform (spindle-shaped); valvular apparatus variously
developed; isthmus very slender; posterior bulbar region pyriform to elongate.
Spermatheca rounded to oval; uterine cells probably in quadricolumellar
arrangement; vagina curved anteriorad (L. leptosoma) or perpindicular.
Vulval opening with lateral membranes; post-uterine sac short. Tail long,
becoming almost filimentous. Lateral field variable; lacking (L. leptosoma),
a narrow band forming two lines (L. filicaudata) or two distended
tube-like bands forming four lines. Males similar to females; caudal alae
leptoderan, short.
Type species
L. leptosoma (de Man, 1880) Andrassy, 1954
Tylenchus leptosoma de Man, 1880
T. filiformis v. leptosoma de Man, 1880
Anguillulina leptosoma (de Man, 1880) Goodey, 1932
Deontolaimus tatricus Daday, 1896
Species List