Anatonchus francolambertii		Contents		Rev 09/19/2024
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Anatonchus Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Mononchidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

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Morphology and Anatomy:

•  Cuticle (outer and inner) smooth, 4- 5 um thick at mid body, 3-4 um at tail; lateral chords about one-third of body width at mid-body.
•  Lip region wider than adjoining body, about three times as wide as high.
• Amphids cup-shaped, their apertures at 21-27 um from anterior end.
• Buccal cavity wide, globular and massive; walls formed by two sets of strongly cuticularized plates: a vertical set of three plates each bearing a large tooth at its upper part, the apex at 57-65% from base of stoma. Below this lies a set of three oblique plates. All three teeth, with sharply pointed teeth, identical in shape and size, located at same level and directed posteriorly.
• Pharynx cylindrical, slightly expanded at extremities; lumen strongly cuticularized and thickened, broader at base of stoma. Pharyngo-intestinal junction tuberculate.
• Nerve ring at 123-161 um from anterior end of body. Excretory pore at 175-193 um from anterior end.
• Rectum 31-34 µm, slightly less than one abd. V Tail elongate conoid, ventrally arcuate, gradually tapering, 7-8 anal body widths long; caudal glands well developed with their ducts leading to a terminal outlet. Caudal papillae one pair on each sid

	Anatonchus francolambertii A. , entire female; B, entire male; C and D, anterior region of female; E, female gonads; F, vulval region; G, female tail; H, anterior region of male; I, male tail; J, spermatozoa Drawings from Choudhary ett al. 2008
Males:   Diorchic, each testis thin-walled with many immature germ cells and elongated spindle-shaped spermatozoa, The two testes join to a common vas deferens which leads to the ejaculatory duct Six pairs ejaculatory glands Spicules a little <2 abd Gubernaculum a 30% of spicule length and lateral accessory pieces 16% of spicule length. Ventromedian supplements 11-12.	Female:   Didelphic, amphidelphic, both branches about equal; ovaries reflexed. Vulva transverse. 2-5 prevulval papillae and 2-4 post-vulval papillae.  Vagina thick-walled Oviduct joining ovary subterminally, Uterus a wide tube; distinct sphincter at oviduct-uterus junction. RefL Choudhary et al., 2008
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

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Distribution:

Described from soil around the roots of tea plants (Camellia sinensis) at Lahijan, near the Caspian Sea, Iran (Choudhary et al., 2009).

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Feeding:

Predaceous on other organisms, including nematodes; ingesters of prey.

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Biology and Ecology:

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Life Cycle:

Males and females present; males with sperm;  presumed sexually reproducing.

Ecophysiological Parameters:

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Ecosystem Functions and Services:

Regulation of opportunistic prey.

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Management:

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References:

Andrassy I., 1993. A taxonomic survey of the family Anatonchidae (Nematoda). Opuscula Zoologica, Budapest, 36: 9-52.

Choudhary M., Ahmad, W. and Jairajpuri, M.S. 2009. Descriptiom of Anatonchus francolambertii sp.n. from Iran. Nematologia Mediterran. 37:169-173.

 Mulvey R.H., 1961. The Mononchidae: A family of predaceous nematodes. II. Genus Anatonchus (Enoplida: Mononchida). Canadian Journal of Zoology, 39: 807-826

Jairajpuri, M.S. and Khan, W.U. 1982. Predatory Nematodes (Mononchida). Associated Publishing, New Delhi 131p.

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Copyright © 1999 by Howard Ferris.
Revised: September 19, 2024.