Paraheligmonella romerolagi female
Super-family : Heligmosomoidea
Family : Heligmonellidae
Sub-family : Heligmonellinae
Synonymy:
= Boreostrongylus romerolagi, Gibbons and Kumar, 1980
Author and date : Gibbons and Kumar,1980
Parasite of Romerolagus diazi, Leporidae, Mammalia
Locality : Mexico
Location : small intestine
Collection : Commonwealth Institute of Helominthology, type collection n° B1027, S1028.
Reference : Gibbons and Kumar,1980. Systematic parasitology, 1: 117-122.
Romerolagus diazi (Host)
Anterior end of Paraheligmonella romerolagi female.
Synlophe of Paraheligmonella romerolagi female
Posterior end of Paraheligmonella romerolagi female, lateral view.
Tail of Paraheligmonella romerolagi female.
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Classification
Generality of the parasite
Whole body
- Length of the body : 4001 to 5000 µm ; 5001 to 6000 µm
- Width of the nematode at midbody : 76 to 100 µm ; 101 to 125 µm
Cephalic characters
- Presence of cephalic vesicle : Yes
- Width of the cephalic vesicle (in middle) : 31 to 40 µm
- Number of internal labial papillae : ?
- Number of external labial papillae : ?
- Presence of cephalic papillae : ?
- Length of the cephalic vesicle : 51 to 60 µm ; 61 to 70 µm
Anterior part
- Position of the nervous ring from the anterior end : ?
- Position of the excretory pore from the anterior end : 251 to 300 µm
- Position of deirides from the anterior end : 201 to 250 µm ; 251 to 300 µm
- Length of the oesophagus : 301 to 350 µm
- Ratio length of the oesophagus over the total length : 0 to 5% ; 6 to 10%
- Excretory glands : ?
Synlophe at midbody
- Number of cuticular ridges at midbody : 11 to 15
- Size of ridges : 1 to 10 µm ; 11 to 20 µm ; 21to 30 µm ; 31 to 40 µm
- Axis of orientation of the synlophe : 1 axis
- Right axis : non applicable
- Left axis : non applicable
- Appearance of ridges : Behind cephalic vesicle
- Nature of the ridges : Longitudinal ridges
- Number of dorsal ridges at midbody : 6 to 10
- Disappearance of the cuticular ridges in the female : At level of the vulva
- Disappearance of the cuticular ridges in the male : non applicable
- Only a general axis : 21 to 30°
- Number of ventral ridges at midbody : 6 to 10
- Presence of a gradient of size of the cuticular ridges : Gradient on both dorsal and ventral faces
Reproductive tract of the female
- Presence of egg : Yes
- Length of egg : 61 to70µm ; 71 to 80 µm
- Width of egg : 31 to 35 µm ; 36 to 40 µm ; 41 to 45 µm
- Number of egg : ?
- Length of vestibule : 51 to 100 µm
- Sex of the nematode : Female
- Length of vagina vera : 31 to 40 µm
- Length of the tail : <40 µm
- Position of the vulva from the posterior end : 51 to 100 µm ; 101 to 150 µm
- Length of anterior sphincter : 21 to 30 µm ; 31 to 40µm ; 41 to 50 µm
- Length of anterior uterus : ?
- Presence caudal pointed tail : No
- Length of anterior infundibulum : <100 µm ; 101 to 125 µm
Reproductive tract of the male
- Sex of the nematode : Female
- Height of the division of the dorsal ray : non applicable
- Length of the rays 9 in ratio to the rays 10 : non applicable
- Diagram of rays 2 to 6 (left lobe) : non applicable
- Disposition of types of bursal arrangements in lateral lobes : non applicable
- Length of rays 2 to 6 : non applicable
- Birth of rays 8 : non applicable
- Length of the rigth spicule : non applicable
- Length of the left spicule : non applicable
- Shape of the spicules : non applicable
- Number of tips of the spicules : non applicable
- Shape of the genital cone : non applicable
- Length of genital cone : non applicable
- Presence of papilla 0 on anterior lip of genital cone : non applicable
- Presence of papillae 7 on posterior lip of genital cone : non applicable
- Presence of gubernaculum : non applicable
- Width of gubernaculum : non applicable
- Asymmetry of the caudal bursa : non applicable
- Height of the asymmetry : non applicable
- Width of asymmetry : non applicable
- Diagram of rays 2 to 6 (right lobe) : non applicable
- Dorsal lobe visible : non applicable
- Diagram of basic pattern of the caudal bursa (lobes left and right are symmetric) : non applicable
- Tendency of the diagram ( lobes left and right are symmetric) : non applicable
- Tendency of diagram (left lobe) : non applicable
- Tendency of diagram (right lobe) : non applicable
- Presence of the prebursal rays (= rays 1) : non applicable
- Approaching rays 5 to 6 : non applicable
- Ratio length between ray 8 and dorsal ray : non applicable
- Position of the rays 9 : non applicable
- Form of gubernaculum : non applicable
- Length of gubernaculum : non applicable
- Symmetry of the caudal bursa : non applicable