Monhystera dispar Bastian 1865
- Dataset
- FREELIVING AND PLANT PARASITIC NEMATODES FROM SPITZBERGEN, COLLECTED BY MR. H. VAN ROSSEN
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Nematoda
- class
- Chromadorea
- order
- Monhysterida
- family
- Monhysteridae
- genus
- Monhystera
- species
- Monhystera dispar
description
Two females. Dimensions: L = 0.57 - 0.61 mm; a = 22 - 25; b = 5.2 - 5.9; c = 5.6 - 5.9; V = 33 - 3659 - 60. The amphids measure 2.5; x or 20 - 25 % of the corresponding body diameter; they are located 1.6 - 2.0 head widths from the anterior end. Cephalic setae very short. Width of head slightly more than one-third of body width at base of oesophagus. The head is devoid of lips. The oesophagus is widened slightly distally. The tail measures 5.8 - 6.5 anal body widths; it is conoid in the anterior half, cylindroid in the posterior. Anus and vulva inconspicuous, the lips not protruding. Rectum two-thirds of anal body width. Vulva-anus distance equal to 121 - 142 % of tail length. In the anterior part of the gonad the oocytes are arranged into multiple rows. The identity of these specimens is not quite certain: the head is not conspicuously broad, the amphids lie too far backward. Amphid size is controversial in this species: 13 % of corresponding body width after de Man (1884), 40 - 50 % after Wieser (1956). Sample 22.
Name
- Homonyms
- Monhystera dispar Bastian 1865