Rhabdochona papuanensis

Rhabdochona papuanensis	Contents	Rev 11/07/2024
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Rhabdochona Menu	Economic Importance	Damage
	Distribution	Management
Return to Rhabdochonidae Menu	Feeding	References
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Classification:

Chromadorea Chromadoria

Rhabditida

Spirurina

Thelazioidea

Rhabdochonidae

Rhabdochona papuanensis Moravec, Riha & Kuchta, 2008

Morphology and Anatomy:

Medium sized nematodes with striated cuticle.
Oval mouth opening haxagonal surrounded by four small submedian cephalic papillae of external circle and four minute submedian papillae of internal circle; pair of lateral amphids present.
Prostoma funnel-shaped, wide, with small basal teeth, anterior margin of prostoma armed internally with 14 teeth (3 dorsal, 3 ventral and 4 lateral on each side).
Vestibule medium length, curved
Dierids small , hammer-shaped near popsterior of vestinule
Tail of both sexes conical, with sharply pointed terminus

Male:

Preanal papillae: 9 pairs subventral and 1 pair of lateral
Postanal papillae: 6 pairs, second pair lateral, others subventral.
Longitudinal ventral cuticular ridges absent.
Left spicule long, 651 um; distal tip of extruded spicule distinctly expanded.
Right spicule 108 um long, with distinct dorsal barb at distal tip.
Tail 135 um long.

Female:

Vulva postequatorial,.
Muscular vagina directed posteriorly.
Numerous eggs in uterus
Tail 192 um long

Ref: Moravec et al., 2008

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Distribution:

Described from the New Guinea rainbowfish Melanotaenia affinis from a tributary of the Sogeram river in northern Papua New Guinea.

Feeding:

Intestinal parasite of Astyanax mexicanus.

Life Cycle:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

Ecosystem Functions and Services:

Moravec, F., Riha, M., Kuchta, R. 2008. Two new nematode species, Paragendria papuanensis sp. n. (Seuratoidea) and Rhabdochona papuanensis sp. n. (Thelazioidea), from freshwater fishes in Papua New Guinea. Folia Parasitologica 55:127-135.

Moravec, F. 1998: Nematodes of Freshwater Fishes of the Neotropical Region. Academia, Praha, 464 pp.