Hughjonestrongylus pervulgatus

Hughjonestrongylus pervulgatus	Contents	Rev: 03/26/2026
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Hughjonestrongylus Menu	Economic Importance	Ecosystem Functions and Services
	Distribution	Management
Return to Heligmonellidae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria

Rhabditida
Rhabditina
Infraorder Rhabditomorpha
Heligmosomoidea: Helligmonellidae
Nippostyrongylinae
Hughjonestrongylus pervulgatus Smales, 2019

Synonyms:

Morphology and Anatomy:

Small worms, slightly or tightly coiled
Buccal capsule vestigial, annular. Mouth opening triangular with rudimentary lips;
Esophagus claviform. Nerve ring in anterior half of esophagus, deirids and excretory pore in posterior third of esophagus.
Synlophe of pointed longitudinal continuous ridges between posterior margin of cephalic vesicle to anterior to bursa or vulva; 20 ridges in anterior body female; 27-29, in mid body male, 25-26 in mid body female; 27-30 posterior body male, 25-30 posterior body female. Ridges
markedly different in size. Axis of orientation oblique from right ventral to left dorsal in mid body, losing orientation
posteriorly; 11-12 ridges dorsal side, 13-17 ventral side. L

Females:

Vulva opens about 5% body length from tail tip
Evejector monodelphic,
Tail conical with pointed tip 53 um long.
Eggs thin-shelled ellipsoidal

Ref: Smales, 2019

Males:

Bursa asymmetrical, left lobe larger, pattern of rays 2-3, dorsal lobe shorter than laterals, dorsal ray symmetrical, divided at about 2/3 its length, each branch dividing again at tip, terminal divisions rays
9, 10 symmetrical, rays 8 asymmetrical, arising from dorsal trunk at about same level; lateral rays 6 curved dorsally, 4, 5 ventrally, rays 4 largest, rays 2, 3 diverge ventrally, reaching margin of bursa.
Genital cone short, rounded, ventral and dorsal lips about same size, dorsal lip with paired papillae
Spicules equal, filiform, average 327 um long
Gubernaculum 25.6 um long

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

Distribution:

Described from small intestine of Paramelomys platyops (Muridae) from Papua New Guinea and also reported in small intestine of Melomys sp from Papua, Indonesia (Smales, 2019).

Feeding:

Parasites of the small intestine of a murid rodent

Biology and Ecology:

An intestinal parasites of rodents in the family Muridae, Paramelomys platyops and Melomys sp.

Life Cycle:

Ecophysiological Parameters:

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

Ecosystem Functions and Services:

Smales, L. 2019. Gastrointestinal nematodes of Paramelomys platyops (Rodentia: Muridae) from Papua Indonesia and Papua New Guinea with the descriptions of a new genus and five new species of Heligmonellidae (Nematoda: Trichostrongylina) and a key to the species of Hughjonestrongylus. Zootaxa 4679:107-125.