Tripylina tlamincasensis

Tripylina tlamincasensis	Contents	Rev: 11/19/2019
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Tripylina Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Trischistomatidae Menu	Feeding	References
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Classification:

Enoplea
Enoplia
Enoplida
Tripylina
Tripyloidea
Trischistomatidae

Tripylina tlamincasensis Cid del Prado-Vera, Ferris, Nadler & Lamothe-Argumedu, 2012

    Synonyms:

Morphology and Anatomy:

Tripylina tlamincasensis (female). E: Anterior end. F: Vulva region. G: Oesophago-intestinal junction. H: Tail.

from Cid del Prado et al., 2012

General Characteristics:
Female: Body C-shaped in relaxed specimens, with tail curved ventrad.

Cuticle 1.0-3.0 μm thick, with fine transverse striation under SEM.

Body pores and somatic setae absent.

Lip region asymmetric, conoid and 12-18 μm wide; oral aperture with three small triangular lips, each with a pair of conical inner labial papillae at its base.

Outer labial setae 10-15 μm long; cephalic setae 4-6 μm long, in a whorl 1 μm behind the outer labial setae.

Amphid apertures small, elliptical, close to the level of the dorsal tooth and located at 10-20 μm from the anterior end. Two cervical setae were observed in 10 out of 19 specimens.

Excretory pore indiscernible.

Dorsal wall of stoma not thickened; dorsal tooth small, located at 10-19 μm from the anterior end and
at 3-5 μm behind the subventral teeth.

Cardia relatively small, 8.8-10.1 μm long and 20-27 μm wide, with two pericardiac cells.

Distance from base of pharynx to vulva 306-467 μm and to anus 504-664 μm.

Nerve ring at 55-92 μm from the anterior end.

Genital system monodelphic-prodelphic, 64-160 μm long, ovary reflexed.

Vagina with very small sclerotized pieces, and vulva radially grooved, with non-protruding lips.

Tail curved ventrad, with twisted terminus, ending in a small spinneret; one pair of latero-dorsal setae present.

Male: Unknown.

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Type locality and habitat: MÃƒÂ©xico, MÃƒÂ©xico State, Texcoco, Tlamincas. Archeological site at Cerro Tetzcuitzinco, altitude 2448 m a.s.l. (N19Ã‚Â° 29.874Ã¢â‚¬â„¢, W98Ã‚Â° 49.072Ã¢â‚¬â„¢), in moss on rock.

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Feeding:

Nematodes of the family Tripylidae are generalist predators of small aquatic and soil organisms. Many authors have commented on the freshwater and
wet soil in which these nematodes are found, and on the nature of their prey based on observation of intestinal contents or from behavior. Among the recorded prey, as reviewed and collated by Small (1987), are nematodes, rotifers and protozoa (Cid del Prado et al., 2012).

Nematodes in the Tripylidae attach to soil particles or other substrate via adhesive material extruded from the caudal glands through the spinneret. Thus anchored, the body moves quite reapidly in water films, sometimes thrashing vigorously. This behavior has at least three possible purposes: 1. to make tactile contact with prey organisms, 2. to create currents that stir up the sediment and potential prey organisms settled therein, and 3. to anchor the nematode in currents of moving water.

Interestingly similar attachment and feeding behavior occurs in other nematode groups that, based on most characters, appear to be only distantly related. For example, the generalist predators of the Tripylidae are in the Class Enoplea, Subclass Enoplia, Order Enoplida, the specialist predators of other nematodes in the Mononchidae are in the Class Enoplea, Subclass Dorylaimia, Order Mononshida, while the bacterivorous Plectidae are in the Class Chromadorea, Subclass Chromadoria, Order Plectida, according to the phylogeny proposed by De Ley and Blaxter, (2002, 2004).

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Biology and Ecology:

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

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Ecosystem Functions and Services:

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Management:

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References:

Brzeski, M.W. (1965): On the identity off TrischistomaTrischistomaCobb andd TripylinaTripylina Brzeski. Nematologica 11:449.

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

Cid del Prado Vera, I., Ferris, H., Nadler, S.A., Lamothe Argumedo, R. 2012.Four new species of Tripylina Brzeski, 1963 (Enoplida: Tripylidae) from MÃƒÂ©xico, with an emended diagnosis of the genus. Journal of Nematode Morphology and Systematics 15: 71-86.

Small, R.W. 1987. A review of the prey of predatory soil nematodes. Pedobiologia, 30: 179-206.