Morphology of Monhystera Coomansi Sp.N. From Algeria (Nematoda: Monhysteridae)

  title={Morphology of Monhystera Coomansi Sp.N. From Algeria (Nematoda: Monhysteridae)},
  author={Ludo J. Jacobs and Juan Heyns},
The morphology of Monhystera coomansi sp.n., a free-living benthic species from Algeria, is described in detail. The new species is characterised by the presence of the longest spicules (135-220 μm) hitherto found in the genus and a gubernaculum with two plate-like, lateral apophyses and a median horsehead-shaped apophysis. The female of M. coomansi sp.n. is characterised by the following combination of characters: numerous ovoid and hyaline cells associated with the uterus, one pair of double… 
Descriptions of Eumonhystera borealis n. sp., Sphaerolaimus occidentalis n. sp., and a Redescription of S. gracilis de Man 1876 (Nemata) from Bothnian Bay, Baltic Sea.
The free-living nematodes Eumonhystera borealis n. sp., Sphaerolaimus occidentalis n. sp., and S. gracilis de Man 1876 from Bothnian Bay in the northern Baltic Sea are described and illustrated.
Description of two new monhysterid species (Nematoda: Monhysterida) from sewage in India
Summary.-Two monhysterid species, Monhystera rolandi sp. n. and Geomonhystera glandulata sp. n., obtained from drain (sewage water) in Aligarh, India are described and illustrated. M rolandi sp. n.
New species of free-living nematode Monhystera curvicaudata sp. nov. (Nematoda: Monhysterida) from India
The article provides the description of Monhystera curvicaudata sp. nov., a new species of free-living freshwater nematode from a water reservoir in Rajastan state, India. The new species differs
Aquatic nematodes from Ethiopia I
Freshwater bottom samples collected from Ethiopia during December 1993 and January 1994 yielded six species of the genus Monhystera Bastian, of which four are new to science, each of which can be recognized by a combination of characters.
Aquatic nematodes from Ethiopia II
Eight species of the genus Monhystrella, six of which are new to science, are described from bottom samples collected from three lakes, two rivers and a hot spring in Ethiopia, with the presence of a hyaline coelomocyte next to the germinal zone of the reproductive system reported for the first time in all eight species.
Position of pharyngeal gland outlets in monhysteridae (nemata).
It is concluded that at least three, and possibly five, nuclei are in the basal part of the pharynx and may well be the basic plan in the Class Chromadorea (including Secernentia as a subclass).
Comparison of British populations of potato cyst nematodes with populations from continental Europe and South America using RAPDs.
All the Pa2-Pa3 populations, except one from Scotland (Luffness), constituted a single group with no clear distinction based on pathotypes Pa2 and Pa3, according to random amplified polymorphic DNA (RAPD).