Brevitobrilus tauricus

Brevitobrilus tauricus	Contents	Rev: 05/04/2026
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Brevitobrilus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Tobrilidae Menu	Feeding	References
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Classification:

Brevitobrilus tauricus Robles & Abolafia, 2026

    Synonyms:

Morphology and Anatomy:

Slender nematodes,1.41-2.34 mm long.
Cuticle 1- 2 um thick with very fine annuli, hardly discernible under light microscopy. Entire body is provided with regularly-spaced somatic setae.
Lip region continuous with the body contour; six rounded lips mostly fused. Sensilla \in three concentric circles: six inner papilliform labial sensilla, on lips and surrounding the oral aperture; six outer thicker setiform labial sensilla; four thinner setiform cephalic sensilla, both at the base of the lip region.
Stoma 0.9-1.6 x lip region diameter with three distinct sections: an anterior barrel-shaped buccal cavity provided with sclerotized rhabdia, two adjacent pockets, each armed with a tooth and separated by a narrow canal.
Amphids small, at the level of the first stomatal pocket, 12-19 um from the anterior end.
Pharynx subcylindrical and muscular; cardia simple, with three spherical to ovoid cardiac gland cells; nerve ring surrounding the pharynx at 29-45% of its length.

	Females: Didelphic-amphidelphic, with equal branches, each 22-32%. of body length. Ovaries laterally reflexed, Uterus cylindrical, often containing eggs. Eggs almost spherical (45 Ã— 52 um). Vulva a ventral slit at about 45% of body length. Tail 137-178 um long, uniformly tapering with a rounded tip and ending in a short and tubular spinneret. Caudal setae 6-7; subterminal setae present on dorsal side close to spinneret Ref: Robles and Abolafia, 2026

Males: Diorchic with each testis reflexed anteriorly, in right of the intestine. Spicules, 32-40 um long, paired and symmetrical, curved ventrad; manubrium slender and rounded; calamus large and conoid; lamina ventrally curved. Gubernaculum angular and spoon-shaped. Ventral supplements of two types: six prominent, bulb-shaped supplements of equal size and 40 to 42 micropapillae between the bulb-shaped supplements and anterior and posterior to them. Vas deferens joining ejaculatory duct at the level of the third supplement. Tail similar to female with spinneret slightly sclerotized. Caudal setae 9-10; subterminal setae present on dorsal side.

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

Species described from sandy soil with xerophilic vegetation in the southeast of the Iberian Peninsula, Spain. A non-aquatic enviroment, differing from the aquatic of moist soil habitats of many species of the family Tobrilidae

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Feeding:

Probably generalist predators of nematodes and micro-invertebrates.

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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:

Robles, M-C. and Abolafia, J. 2026. Description of Brevitobrilus tauricus sp. nov. (Triplonchida, Tobrilidae) from xeric soils in the southern Iberian Peninsula. Nematology 28:177-191.