Tripyla tropica

  

Contents

  

Rev 12/17/2012

  Classification Hosts
Morphology and Anatomy Life Cycle
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Distribution Management
Return to Tripylidae Menu Feeding  References
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Classification:

 Enoplea

     Enoplia

        Enoplida

          Tripylina

             Tripyloidea

Tripylidae

Tripyla tropica Cid del Prado, Ferris and Nadler, 2010

Note:  A recent classification removes the suborder Tripylina from the order Enoplida and places it, along with suborders Tobrilina and Diphtherophorina, in the order Triplonchida in subclass Dorylaimia
(De Ley et al., 2006; De Ley & Blaxter, 2004).

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Morphology and Anatomy:

 

  

 

  

drawings and photomicrographs by Ignacio Cid Del Prado

Female:

  • Body J-shaped upon fixation.

  • Cuticle  with conspicuous transverse striations 1.0 µm wide.

  • No body pores but a few very small setae are distributed irregularly along the body.

  • Lip region symmetrical, lacking striations, flattened anteriorly, slightly constricted where cuticular striations begin.

  • Outer labial setae crescent-shaped and directed anteriorly, 4.0-6.0 µm (4.8±0.3) long or 20-23% (21.0±0.4) of lip region width.

  • Cephalic setae thinner 2.0-3.0 µm (2.2±0.2) long and 4.0-7.0 µm (5.8±0.4) posterior to outer labial circle.

  • Dorsal tooth wedge-shaped and hooked posteriorly at the tip, two small teeth 2.0-5.0 µm (4.5±0.6) posterior to the dorsal tooth, stomatal chamber 22.5 µm from anterior end.

  • Large cardia between pharynx and intestine.

  •  Vulva without sclerotised structures. Vagina 10-22 µm (13.8± 4.3) long, heavily muscular along its length; there are two glands containing granules that have fine ducts opening into the vagina close to the vulva.

  • Tail curved ventrally and narrowing evenly.

  • Spinneret conspicuous.

Male:

  • Body size similar to female.

  • Spicules curved; gubernaculum straight; surrounded by a muscular spicule pouch.

  • Genital system diorchic, with opposite, outstretched testes that open into a common vas deferens.

  • Tail tapering evenly, with  conspicuous, terminal spinneret.

Cid del Prado et al., 2010.
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Distribution:

 Type locality and habitat: Soil around roots of trees in tropical forest in San Fernando, Los Tuxtlas, Municipio de Soteapan, Veracruz, México (N18° 18.58’; W 94° 53.45’).

Paratypes collected in tropical forests at López Mateos (N18° 19.11’; W 94° 52.89’) and Venustiano Carranza (N18° 20.21’; W 94° 46.27’), Los Tuxtlas, Municipio de Catamaco, Veracruz, México.

 

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Economic Importance:

 

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Feeding:

Predator

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Hosts:

 

 

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Life Cycle:

 

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Damage:

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Management:

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References:

Cid del Prado, I., H. Ferris and S.A. Nadler. 2010. Soil inhabiting nematodes of the genera Trischistoma, Tripylina and Tripyla from México and the USA with descriptions of new species. Journal of Nematode Morphology and Systematics 13-28-49.

De Ley, P., Decraemer, W. & Eyualem-Abebe. (2006).  Introduction: summary of present knowledge and research addressing the ecology and taxonomy of freshwater nematodes. In Eyualem-Abebe, Andrássy, I. & Traunspurger, W. (Eds). Freshwater Nematodes: Ecology and Taxonomy. Wallingford, UK, CABI Publishing, pp. 3-30.

Zullini, A. (2006).  Order Triplonchida. In Eyualem-Abebe, Andrássy, I. & Traunspurger, W. (Eds). Freshwater Nematodes: Ecology and Taxonomy. Wallingford, UK, CABI Publishing, pp. 293-323

 

 

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Copyright © 1999 by Howard Ferris.
Revised: December 17, 2012.