Genus Clarkus

To view images go to: Image List

ORDER MONONCHIDA
            Family Mononchidae
                        Genus Clarkus, Jairajpuri, 1970

                       

“Diagnosis: Mononchinae.  Body length between 0.7 and 2.7 mm.  Stoma barrel shaped, nearly twice as long as wide.  Dorsal tooth directed forward, located in anterior half of stoma; it is opposed by a longitudinal ridge  on each ventrosublateral wall abruptly ending anteriorly almost tooth like.  Posterior third of pharynx with pearl-shaped structure.  Female didelphic; V≈45-70%.  Males rare.  Supplements 10-19; spicules relatively short.  Tail in both sexes conoid, ventrally arcuate, with rudimentary glands and without spinneret.

Type species C. papillatus (Bastian, 1865) Jairajpuri, 1970.  In all continents expect Antartica” Zullini and Peneva, 2006.

References:

Powers T. and P. Mullin. Plant and Insect Parasitic Nematodes. University of Nebraska Nematology Website. http://nematode.unl.edu/   Images:
Genus comparisons- Mononchid heads
Genus comparisons- Mononchid tails

Zullini A. and Peneva V.  2006.  Order Mononchida.  In: Eyualem Abebe, Traunspurger W., and Andrassy I. (eds) Freshwater Nematodes: Ecology and Taxonomy. CABI Publishing, Cambridge, MA, p. 468-496

Michigan State University
  • Spartans Will.
  • © Michigan State University

MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential.

Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Quentin Tyler, Director, MSU Extension, East Lansing, MI 48824. This information is for educational purposes only. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned.

The 4-H Name and Emblem have special protections from Congress, protected by code 18 USC 707.

We comply with the Federal Trade Commission 1998 Children’s Online Privacy Protection Act (COPPA).