Genus Carcharodiscus
Andrássy, 1991
Qudsianematidae, Carcharolaiminae. Body 1.2 to 2.5 mm long, moderately slender.  Cuticle smooth or, rarely, finely striated.  Lateral glandular bodies conspicuous.  Lips well developed, head sharply offset, tall.  Vestibular basket with small teeth on the bottom and numerous very fine denticles on its walls.  Pharynx moderately sclerotized.  Spear 12 to 24 um long, shorter than, or maximal as long as labial diameter, with large aperture. Guiding ring thin. Oesophagus enlarged before the middle (in 33 -43%).  Prerectum short.  Vulva longitudinal or transverse, not sclerotized, located in 48-63% of body length. Female genital system didelphic, ovaries unusually short, reflexed 1/4 to 1/3 way to vulva.  Male known in one species only.  Ventromedial supplements 5-7, spaced.  Tails of both sexes short, convex-conoid or bluntly rounded.

Type species: Carcharolaimus dentatus Thorne, 1939 = Carcharodiscus dentatus (Thorne, 1939) Andrássy, 1991

The genus is closely allied to Carcharolaimus dentatus Thorne, 1939.  It may be easily distinguished from that by the presence of small denticles on vestibular walls and the very short ovaries.

Terrestrial nematodes known in Europe (2 species), Asia (3 species), North (2 species) and South America (1 species), and Australia (1 species).

Seven species:
C. banaticus (Krnjaic & Loof, 1975) Andrássy, 1991
    Carcharolaimus banaticus Krnjaic & Loof, 1975
C. bediensis (Sultan & Singh, 1981) Andrássy, 1991
    Carcharolaimus bediensis Sultan & Singh, 1981
C. dentatus (Thorne, 1939) Andrássy, 1991
    Carcharolaimus dentatus Thorne, 1939
C. formosus (Lordello, 1957) Andrássy, 1991
    Carcharolaimus formosus Lordello, 1957
C. lucidus (Sauer, 1967) Andrássy, 1991
    Carcharolaimus lucidus Sauer, 1967
C. ramirezi (Thorne, 1967) Andrássy, 1991
    Carcharolaimus ramirezi Thorne, 1967
C. symmetricus (Sultan & Singh, 1981) Andrássy, 1991
    Carcharolaimus symmetricus Sultan & Singh, 1981

(Description- Andrássy, 1991)