Stylotheristus		Contents		Rev: 05/22/2025
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Stylotheristus Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Xyalidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

  Chromadoria

   Monhysterida

Monhysterina

Sphaerolaimoidea

                 Xyalidae

       Stylotheristus Lorenzen, 1977

Type species of the genus: Stylotheristus mutilis (Lorenzen, 1973) Lorenzen, 1977

    Synonyms:

Back to Top

Morphology and Anatomy:

• Body length approximately 2 mm.
• Cuticle striated.
• Anterior sensilla arranged in two circles with the number of setae in the second circke depending on the sex and life stage; six + four in juveniles and females and six + ten in males.
• Buccal cavity conical.
• Pharyngeal muscles well-deveoped around the buccal cavity.t. Three caudal glands opening via separate pores. Tail conico-cylindrical with three terminal setae

Ref:  Fonseca & Bezerra, 2014; Pinto and Neres, 2020

Back to Top

Distribution:

The species Stylotheristus multipapillatus was described from sandy sediments adjacent to ashipreck on the shallow continetal shelf of Portugal,

Back to Top

Feeding:

Food Sources and Feeding strategies for the genus Stylotheristus

Free=living marine nematodes

Back to Top

Biology and Ecology:

Back to Top

Life Cycle:

Back to Top

Ecosystem Functions and Services:

Back to Top

Management:

Back to Top

References:

Fonseca, G. & Bezerra, T.N. 2014. Order Monhysterida Filipjev, 1929. In: Schmidt-Rhaesa, A. (Eds.), Handbook of Zoology. Gastrotricha, Cycloneuralia, Gnathifera. Vol. 2. Nematoda. De Gruyter, Hamburg, pp.435-465

.Lorenzen, S. 1977. Revision der Xyalidae (freilebende Nematoden) auf der Grundlage einer kritischen Analyse von 56 Arten aus Nord- und Ostsee. Ver�ffentlichungen des Instituts f�r Meeresforschung in Bremerhaven, 16: 197-261

Pinto, T.K. and  Neres, P.F. 2020. Four new species of free-living nematodes from shallow continental shelf of Portugal. Zootaxa 4722 (1): 001-033.

Copyright 1999 by Howard Ferris.
Revised: May 22, 2025.