Spiroxys

Spiroxys	Contents	Rev: 11/16/2023
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Spiroxys Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Gnathostomatidae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria
Rhabditida: Spirurina
Gnathostomatomorpa
Gnathostomatidae

Spiroxys

Type species of the genus: Spiroxys contortus (Rudolphi, 1819) Schneider, 1866

Synonyms:

Morphology and Anatomy:

Two groups of Spiroxys spp. can becharacterizae by the presence or absence of spines or teeth on the pseudolabia or collar and on the median median lobe of each pseudolabium:

Group 1. Species with spines or teeth present. This group contains S. contortus, S. constrictus, S. gangeticus; S. japonicus; S. amydae; S. allegheniensis, S. algericus, S. corti; S. susanae; S. trirerodens; S. gubernae; S. figueredoi and S. utahensis.

Group 2. Species with spines and teeth absent:; S. annulatus, S. chelodinae and S. transversalata.

For general charactersitics of the genus, see description of Spiroxys chelodinae,

Females:
Males:

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

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Distribution:

Recorded from all zoogeographical regions of the world.

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Feeding:

Adults of the genus Spiroxys are mainly parasites of the stomach and duodenum of freshwater saside-neck turtles of the family Chelidae. They have, also been found in frogs, salamanders and colubrid snakes. (Berry, 1985).

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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:

Baylis HA, Lane C. 1920. A Revision of the Nematode Family Gnathostomidae. Proc Zool Soc Lond 1920: 245-310.

Berry, G.N. 1985. . A new species of the genus Spiroxys (Nematoda; Spiruroidea) from Australian chelonians of the genus Chelodina (Chelidae). Systematic Parasitology 7:59-68.