Leptosomatides

Leptosomatides	Contents	Rev: 02/21/2024
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Leptosomatides Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Leptosomatidae Menu	Feeding	References
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Classification:

Enoplea
Enoplia Enoplida
Ironina
Ironoidea
Leptosomatidae: Leptosomatinae

Leptosomatides Filipjev, 1918

Type species of the genus: Leptosomatides ??

Synonyms:

Morphology and Anatomy:

Sexual dimorphism in amphid structure; fovea round.
Cephalic capsule weakly developed, posterior suture undulating; lobes never reaching beyond anterior margin of amphids.
Onchia and odontia absent.
Labial sensilla intracuticular; cephalic and cervical sensilla papilliform or setiform.
Ocelli present, with distinct lens.
DEGO opens into pharyngeal lumen; ventrosublateral glands open at anterior end, ducts cuticularized.
Renette in pharyngeal region.
Caudal glands long, overlapping intestine.
Ortho- and loxometanemes present.

Male:

Diorchic, testes opposed and outstretched;
Ventral precloacal papilla and 2 subventral rows of accessory sensilla present in cloacal region.
Gubernaculum with cuneus, crura present or reduced.

Female:

Amphidelphic, antidromic.
Vaginal ovejector present. Gonads located left of intestine.
Lateral vulvar glands and intra-cuticular vulvar granules usually present.

Ref: Bongers, 1984

Body size range for the species of this genus in the database - Click:

Distribution:

Free-living marine nematodes. Reported from coastal ocean waaters, including in association with sponges.

Life Cycle:

For Ecophysiological Parameters for this genus, click

Ecosystem Functions and Services:

References:

Bastian, H. Ch. 1865. Monograph on the Anguillilidae, or free Nematoids, marine, land, and freshwater; with descriptions of 100 new species. - Transactions of the Linnean Society of London 25:73-184.

Bongers, T. 1983. Revision of the genus Leptosomatum Bastian, 1865. Proc. Biol. Soc. Wash. 96:807-855.

Bongers, T. 1984. Revision of the genus Leptosomatides Filipjev, 1918 (Nematoda: Enoplida). Proc. Biol. Soc. Wash. 97: 12-29.

Filipjev, I. 1918. Free-living marine nematodes of the Sebastopol area.-Trudy Osoboi Zoologicheskoi Laboratorii i Sebastopol'skoi Biologicheskoi Statsii Akademii Nauk (2)4:1-350.

Platonova, T. A. 1967. Free-living marine nematodes of the family Leptosomatidae from the European Arctic [Svobodnozhivushchie Morskie Nematody Semeistva Leptosomatidae Evropeiskoi Arktiki]. Zoologicheskii Zhurnal 46: 828-839.

Smol, N., Muthumbi, A., Sharma, J. 2014. Order Enoplida, 7.3. In Schmidt-Rhaesa, A. (ed) Handbook of Zoology. De Gruyter, Berlin

Leptosomatides

Contents

Classification:

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Morphology and Anatomy:

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Distribution:

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Feeding:

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Biology and Ecology:

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Life Cycle:

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Ecosystem Functions and Services:

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Management:

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References:

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Copyright © 1999 by Howard Ferris.
Revised: February 21, 2024.

Leptosomatides

Copyright © 1999 by Howard Ferris. Revised: February 21, 2024.

Copyright © 1999 by Howard Ferris.
Revised: February 21, 2024.