Thecavermiculatis

Thecavermiculatus	Contents	Rev 11/03/2004
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
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Classification:

      Tylenchida
       Tylenchina
        Tylenchoidea
         Heteroderidae
          Heteroderinae
           Thecavermiculatus (Robbins, 1978)

    Synonyms:

      None.

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Morphology and Anatomy:

Females: No cyst stage. Body globose, with prominent neck and no terminal cone.

Cuticle thick, annulated in fore part or on the major part of body, with lace-like pattern on posterior part; D-layer present. Subcrystalline layer present (very thick in T. crassicrustatus).

Vulva subterminal, close to anus; vulval lips not protruding; anal-vulval region flush with body contour.

Eggs retained in female body, together with hatched second-stage juveniles. Hence the genus name - literally "sac of worms".

Males: Body twisted.

Lateral field with four lines.

Spicules slightly curved, distally notched; no cloacal tubus.

Tail very short.

No phasmids.

Second-stage juveniles: Lateral field with four lines.

Esophageal glands not filling body cavity (except T. crassicrustatus).

Tail pointed, of medium length, with long, hyaline, terminal part.

Phasmids with lens-like structure.

[Ref: Luc, Maggenti & Fortuner, (1988).]