Paraheligmonella romerolagi male
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).
Synlophe of Paraheligmonella romerolagi male
Caudal bursa of Paraheligmonella romerolagi male
Caudal bursa of Paraheligmonella romerolagi male.
Spicules of Paraheligmonella romerolagi male
Classification
Generality of the parasite
Whole body
- Length of the body : 2001 to 3000 µm ; 3001 to 4000 µm
- Width of the nematode at midbody : 51 to 75 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 : 41 to 50 µm ; 51 to 60 µm
Anterior part
- Position of the nervous ring from the anterior end : ?
- Position of the excretory pore from the anterior end : 201 to 250 µm ; 251 to 300 µm
- Position of deirides from the anterior end : 151 to 200 µm ; 201 to 250 µm ; 251 to 300 µm
- Length of the oesophagus : 251 to 300 µm ; 301 to 350 µm
- Ratio length of the oesophagus over the total length : 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
- 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 : non applicable
- Disappearance of the cuticular ridges in the male : In front of the caudal bursa
- 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 : non applicable
- Length of egg : non applicable
- Width of egg : non applicable
- Number of egg : non applicable
- Length of vestibule : non applicable
- Sex of the nematode : Male
- Length of vagina vera : non applicable
- Length of the tail : non applicable
- Position of the vulva from the posterior end : non applicable
- Length of anterior sphincter : non applicable
- Length of anterior uterus : non applicable
- Presence caudal pointed tail : non applicable
- Length of anterior infundibulum : non applicable
Reproductive tract of the male
- Sex of the nematode : Male
- Height of the division of the dorsal ray : Anterior third
- Length of the rays 9 in ratio to the rays 10 : 9>10
- Diagram of rays 2 to 6 (left lobe) : non applicable
- Disposition of types of bursal arrangements in lateral lobes : similar diagram left ant right
- Length of rays 2 to 6 : 2<3 ; 3>4 ; 4 = 5 ; 5 = 6
- Birth of rays 8 : At the base of the dorsal ray
- Length of the rigth spicule : 201 to 300 µm
- Length of the left spicule : 201 to 300 µm
- Shape of the spicules : Sharp
- Number of tips of the spicules : 1
- Shape of the genital cone : Form of strip ; Large
- Length of genital cone : 51 to 75 µm
- Presence of papilla 0 on anterior lip of genital cone : ?
- Presence of papillae 7 on posterior lip of genital cone : No
- Presence of gubernaculum : Yes
- Width of gubernaculum : 0 to10 µm
- 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 : Indistinct
- Diagram of basic pattern of the caudal bursa (lobes left and right are symmetric) : Type 2-2-1
- Tendency of the diagram ( lobes left and right are symmetric) : Tendency 2-2-1 ; Tendency 1-3-1
- Tendency of diagram (left lobe) : non applicable
- Tendency of diagram (right lobe) : non applicable
- Presence of the prebursal rays (= rays 1) : No
- Approaching rays 5 to 6 : No
- Ratio length between ray 8 and dorsal ray : Dorsal ray>ray 8
- Position of the rays 9 : After the division
- Form of gubernaculum : Well marked: oval form
- Length of gubernaculum : 11 to 20 µm ; 21 to 30 µm
- Symmetry of the caudal bursa : Symmetric