Hypocristata tercera

Hypocristata tercera	Contents	Rev: 01/14/2026
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Hypocristata 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
Hypocristata tercera Durette-Desset & Guerrero, 2006

Synonyms:

Morphology and Anatomy:

Very thin nematodes uncoiled but curved along ventral side, around 3-4 mm long.
Cephalic vesicle very thin and strongly striated.
Excretory pore within anterior third of esophagus.
Esophagus very long (about 490 um), about 20 % of body length in male, 15 % in female.
Synlophe: consisting of 8 very thin, uninterrupted longitudinal ridges, appearing posterior to cephalic vesicle and present only in anterior third in female.
Nerve ring and excretory pore within 20% of anterior of esophagus.

Females:

Monodelphic
Vulva situated at 98 um from tail tip.
Tail of female may be rounded at extremity and usually invaginated.

Ref: Durette-Desset and Guerrero (2006)

Males:

Caudal bursa slightly asymmetrical, left lobe larger.
Thin alate subequal spicules, with spatulate tips.
Gubernaculum and genital cone present

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

Feeding:

Parasites of the small intestine of the rat Sigmodon hispidus (family Cricetidae).

Biology and Ecology:

An intestinal parasites of rodents in the family Cricetidae, superfamily Muridea..

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:

Durette-Desset, M-C. and Guerrero, R.A. 2006. A new species of Hypocristata (Nematoda, Trichstrongylina, Helimosomoidea) a parasite of Sigmodon hispidus (Cricetidae, Sigmodontinae) from Venezuela. Parasite 2006, 13