Johnstonmawsonia

Johnstonmawsonia	Contents	Rev: 02/17/2024
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Johnstonmawsonia Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Rhabdochonidae Menu	Feeding	References
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Classification:

Chromadorea Chromadoria

Rhabditida

Spirurina

Thelazioidea

Rhabdochonidae

Johnstonmawsonia Campana-Rouget, 1955

Type species of the genus: Johnstonmawsonia coelorhynchi Johnston & Mawson, 1945

Parasites of fish.

All species of Johnstonmawsonia were originally described as lacking prostomal teeth. However, SEM exam,ination a recently identified specimen from New Caledonia, parasitizing the marine fish Carangoides fulvoguttatus, has 6 minute denticles in the posterior region of the prostom.. Descriptions of other species of the genus did not employ SEM or have poor quality photographs. Further, posterior prostomal teeth occure in some other genera of the Rhabdochonidae. Therefore, Moravec et al (2016) suggest that prostomal denticles may be a feature of the genus Johnstonmawsonia.

Females:

Males:

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

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Distribution:

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Feeding:

All known species are parasites of the digestive tracts and pancreatic ducts of marine fish. Two additional species were described from freahwater fish but have been transferred to the genus Prosungulonema (Moravec et al., 2016).

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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:

Moravec, H., Gey, D., Justin, J-L. 2016. Nematode parasites of four species of Carangoides (Osteichthyes: Carangidae) in New Caledonian waters, with a description of Philometra dispar n. sp. (Philometridae). Parasite 23: 40. doi: 10.1051/parasite/2016049