Sacrimarinema

Sacrimarinema	Contents	Rev: 11/22/2024
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Sacrimarinema Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Xyalidae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria
Monhysterida: Monhysterina
Sphaerolaimoidea
Xyalidae
Sacrimarinema Shoshin, 2001

Type species Sacrimarinema tatushae Shoshin, 2001

Synonyms:

Morphology and Anatomy:

Characteristics of the genus:

Cuticle finely annulated; somatic setae thin, sparse.
Cephalic setae 14 (6 + 4 + 4 lateral additional).
Males with preanal supplemental organs which are complex in having a central body and anterior and posterior processes.
Spicules long or very long.
Vagina long or very long.
Tail elongate-conoid. Terminal setae absent.
The genus is close to Penzancia de Man, 1889 but differs in having 14 cephalic setae, complex supplements, and very long spicules and vagina.

Females:

Monodelphic-prodelphic
Vagina long to very long (1-2.5 abd)

Males:

Diorchic
Spicules long to very long (2.3-9.2 cbd).

Ref: Shoshin, 2001

Sacrimarinema tatushae 1, head of male; 2, head of female; 3, esophagus male; 4, tail of male; 5, spicules and gubemaculum; 6, vagina; 7, tail of female; 8, supplement (ventral view); 9, expanded supplement; 10, contracted supplement.

Scales:1,2,5,6 - 20um; 3,4,7 - 30 um; 8,9,10 -12 um.

Drawings from Shoshin, 2001

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

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Distribution:

The genus Sacrimarinema is described from three freshwate nematode species in Lake Baikal, Russia.

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Feeding:

Probably epistrate feeders

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Biology and Ecology:

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Life Cycle:

For Ecophysiological Parameters for this genus, click

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Ecosystem Functions and Services:

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Management:

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References:

Shoshin, A. V. 2001. Sacrimarinema gen. n. from Lake Baikal with descriptions of three new species (Nematoda, Monhysterida: Xyalidae). Zoosystematica Rossica 9:253-257.

Sacrimarinema

Copyright © 1999 by Howard Ferris. Revised: November 22, 2024.

Copyright © 1999 by Howard Ferris.
Revised: November 22, 2024.