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Matthesonema eremitum
is distinguished by thwe following General Characteristics;
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Body medium sized, linear, slender.
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Cuticle nearly smooth, with faint transverse striations and
punctations in longitudinal rows; Lateral chord narrow two
indistinct lines
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Stoma a narrow cylindrical tube comprising about 14% of
pharyngeal length; glottoid apparatus absent or vestigial.
Pharyngeal sleeve surrounding 36% of buccal cylinder.
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Basal bulb of pharynx plectoid, valve apparatus rhabditoid. Cardia
prominent, not enclosed by the intestinal wall.
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Excretory pore at 77% of pharynx length just behind the nerve ring
and a flat hemizonid; cervical gland elongated, at the level of the
basal bulb.
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Intestine with a conspicuous sphincter, at approximately 76%
of total body length in both sexes
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Shape of the tail of both sexes similar, elongate, narrowing
slightly, with a clavate, hyaline terminus
Female:
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Monodelphic-prodelphic, genital tract to the right of the
intestine, dorsally reflexed
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Oviduct filled with spherical sperm.
Male:
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Smaller than the female.
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Monorchic; testis to right of intestine,
dorsally reflexed.
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Three cloacal gland cells proximal to the spicules
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Pre- and postcloacal lips with one or two small papillae
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Spicules yellowish, curved, fused to
71% of their length, shaped like a deep, tapering shovel with
inwardly protruding flanks
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Gubernaculum absent.
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Nine pairs of genital papillae, all
postcloacal, arranged 4 + 1 + 2 + 2 ; papillae 1-4 in a
vestigial bursa,
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Bursa short, velum ending about 1.5-2 anal
body widths posterior to cloaca
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Five pairs of finely pointed papillae
in the terminal third of the tail,
Ref: Sudhaus, 1986
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