Pictorial Identification Guide to
the Suborder
Criconematina
Siddiqi, 1980
Characters of the Suborder- below
A Polychotomous Synoptic key to the
Suborder Criconematina
Criconematid Groups, based on
morphological characters, illustrated
An illustrated scheme
based on face view
s
Characters of the Suborder include:
(based on Siddiqi, 2000)
Cuticle may...
be thin and finely
annulated,
be thick and
coasely annulated
have scales, spines,
projections
have extra
cuticular sheath
Six lip areas- may be fused
forming labial disc
large knobs,
often anchor-shaped
characteristic Criconematoid oesophagus
vulva posterior- usually >85%
stylet with short shaft- about 8-10
u
m long
Males degenerate, lack stylet
