Rhabdochona angusticaudata

Rhabdochona angusticaudata	Contents	Rev 02/23/2024
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Rhabdochona Menu	Economic Importance	Damage
	Distribution	Management
Return to Rhabdochonidae Menu	Feeding	References
	Go to Nemaplex HomePage	Go to Dictionary of Terminol;ogy

Classification:

Chromadorea Chromadoria

Rhabditida

Spirurina

Thelazioidea

Rhabdochonidae

Rhabdochona angusticaudata Moravec & Nagasawa, 2018

Morphology and Anatomy:

Medium-sized nematodes, 8-20mm long.
Cuticle finely transversely striated; Lateral alae absent.
Mouth roughly hexagonal. Four small submedian cephalic papillae, 2 lateral amphids and 4 submedian sublabia.
Prostom funnel-shaped, without basal teethbut with 14-16 anterior teeth, 3-4 dorsal, 3-4 ventral and 4 lateral
Deirids small, non-bifurcated, with rounded ends, situated slightly asymmetrically approximately at mid-length of vestibule
Excretory pore at level of posterior part of muscular esophagus.
Tail of both sexes conical, slender, with sharply pointed tip

Male:

Preanal papillae: 9 subventral and 1 lateral pair
Of 6 postanal pairs of papillae, second pair situated more laterally, remaining pairs subventral; lateral pair just posterior to first subventral pair.
Minute phasmids situated laterally short distance posterior to level of last pair of postanal papillae
Precloacal ventral cuticular ornamentations (area rugosa) absent.
Large (left) spicule well sclerotized, Small (right) spicule boat-shaped with distinct dorsal barb at distal tip Length ratio of spicules 1 : 4.4

Ref: Moravec and Nagasawa, 2018

Female:

Vulva equatorial, at 50% of body length
Vagina muscular, directed posteriorly from vulva.
Uterus filled with many eggs with smooth surface, without filaments; thickness of egg wall 4

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

Distribution:

Described from the Jepanese eel, Anguilla japonica, Renjoji river, Shikoku, Japan.

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., Nagasawa K. 2018: Rhabdochona angusticaudata sp. n. (Nematoda: Rhabdochonidae) from the Japanese eel Anguilla japonica, and new records of some other nematodes from inland fishes in Japan. Folia Parasitol. 65: 016.