Heligmonella asymmetrica male
Super-family: Heligmosomoidea
Family: Heligmonellidae
Sub-family: Heligmonellinae
Synonymy:
= Longistriata asymmetrica, Durette-Desset, 1969
Author and date: (Durette-Desset, 1969), Durette-Desset, 1971
Parasite of Atherurus africanus, Hystricidae, Mammalia
Locality: Loukapon (Democratic republic of Congo)
Location: small intestine
Collection : Collections of Museum national d'Histoire Naturelle de Paris; n°
Reference: Durette-Desset, 1969, Cahiers de la Maboké, 7: 109-130.(personal reference n°27)
Atherurus africanus (Host)
Transversal section of Heligmonella asymmetrica male
Synlophe of Heligmonella asymmetrica male
Caudal bursa of Heligmonella asymmetrica male, ventral view.
Spicule extremity of Heligmonella asymmetrica male
+
Classification
Generality of the parasite
Whole body
Cephalic characters
- Presence of cephalic vesicle : Yes
- Width of the cephalic vesicle (in middle) : 41 to 50 µm
- Number of internal labial papillae : ?
- Number of external labial papillae : ?
- Presence of cephalic papillae : ?
- Length of the cephalic vesicle : 61 to 70 µm
Anterior part
- Position of the nervous ring from the anterior end : 201 to 250 µm
- Position of the excretory pore from the anterior end : 251 to 300 µm
- Position of deirides from the anterior end : 301 to 350 µm
- Length of the oesophagus : 351 to 400 µm
- Ratio length of the oesophagus over the total length : 6 to 10%
- Excretory glands : Visible
Synlophe at midbody
- Number of cuticular ridges at midbody : 6 to 10
- Size of ridges : 1 to 10 µm ; 11 to 20 µm ; 21to 30 µm
- Axis of orientation of the synlophe : 2 axes
- Right axis : 31 to 40°
- Left axis : 61 to 70°
- Appearance of ridges : On the posterior edge of the cephalic vesicle
- Nature of the ridges : Continuous ridges ; Longitudinal ridges
- Number of dorsal ridges at midbody : 1 to 5
- 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 : non applicable
- Number of ventral ridges at midbody : 1 to 5
- Presence of a gradient of size of the cuticular ridges : Gradient on dorsal face
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 : Posterior third
- Length of the rays 9 in ratio to the rays 10 : 9 = 10
- Diagram of rays 2 to 6 (left lobe) : Type 1-4
- Disposition of types of bursal arrangements in lateral lobes : Non-similar diagram left and right
- Length of rays 2 to 6 : 3<4 ; 4 = 5 ; 5 = 6
- Birth of rays 8 : On thedorsal ray
- Length of the rigth spicule : 401 to 500 µm
- Length of the left spicule : 401 to 500 µm
- Shape of the spicules : Sharp ; Winged
- Number of tips of the spicules : 1
- Shape of the genital cone : Form of strip
- Length of genital cone : 26 to 50 µm
- Presence of papilla 0 on anterior lip of genital cone : ?
- Presence of papillae 7 on posterior lip of genital cone : ?
- Presence of gubernaculum : ?
- Width of gubernaculum : ?
- Asymmetry of the caudal bursa : Right
- Height of the asymmetry : 201 to 250 µm
- Width of asymmetry : 351 to 400 µm
- Diagram of rays 2 to 6 (right lobe) : Type 2-3
- Dorsal lobe visible : Indistinct
- 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) : Tendency 1-4
- Tendency of diagram (right lobe) : Tendency 2-2-1
- Presence of the prebursal rays (= rays 1) : Yes
- Approaching rays 5 to 6 : No
-
Ratio length between ray 8 and dorsal ray : Dorsal ray
- Position of the rays 9 : After the division
- Form of gubernaculum : ?
- Length of gubernaculum : ?
- Symmetry of the caudal bursa : Asymmetric