Marylynnia

Marylynnia	Contents	Rev: 03/03/2025
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Marylynnia Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Cyatholaimidae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

Chromadorea
Chromadoria
Chromadorida: Chromadorina
Chromadoroidea
Cyatholaimidae: Cyatholaiminae
Marylynnia Hopper, 1977

Type species of the genus: (Marylynia annae Wieser & Hopper, 1967). Marylynnia annae Hopper, 1972

Synonyms:

Marylynia (Wieser & Hopper, 1967)

Morphology and Anatomy:

Cuticle with transverse rows of punctations.
Cuticle pores of two types, simple rounded and longitudinally oval, the latter situated between two dots and referred to as lateral modified punctations.
Inner labial sensilla papilloid. Outer labial setae and cephalic setae joined in a single circle.
Buccal cavity narrow with large dorsal tooth and two pairs of tiny subventral teeth.
Amphids multispiral with 6.5 to 7.5 turns.
Tail is distal half cylindrical with swollen tip

Females:

Ref: Annapurna et al., 2012; Kim et al., 2015

Males:

Proximal third of the spicule more heavily cuticularised with broad ventral alae.
Each half of gubernaculum crescentic,
Six small but distinct cup-shaped supplements in front of cloaca.
Tail conico-cylindrical.

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

Distribution:

Free-living marine nematode.

Reported from Northeast coast of India, 500m depth; Northumberland coast, northeast England in sublittoral fine sand and silt..

Life Cycle:

For Ecophysiological Parameters for this genus, click

Ecosystem Functions and Services:

Annapurna, C., Vijaya Bhanu, C., Srinivasa Rao, M., Sivalakshmi, M.V., Lilly M. .Cooper, G., Rao, Y.K. 2012. Free-living nematodes along the continental slope off northeast coast of India. J. Mar. Biol. Ass. India, 54:52-60.

Kim, H., Tchesunov, A.V., Lee, W. 2015. A new species of the genus Marylynnia (Nematoda: Chromadorida: Cyatholaimidae) from Gwangyang Bay, Korea. Proc. Biol. Soc. Washington 128:227-238.

Marylynnia

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:

Copyright © 1999 by Howard Ferris.
Revised: March 03, 2025.

Marylynnia

Copyright © 1999 by Howard Ferris. Revised: March 03, 2025.

Copyright © 1999 by Howard Ferris.
Revised: March 03, 2025.