Genus Doryllium

To view images go to: Image List

ORDER DORYLAIMIDA

Family Leptonchidae

Genus Doryllium, Cobb 1920

 “Definition:  Leptonchidae.  Spear very short, dorylaimoid, with strongly cuticularized extensions which bear flanges or flattened knobs.  Terminal bulb of oesophagus set off by constriction.  Gonad single, posterior.  Testes and spicules dorylaimoid.  Supplements consisting of an adanal pair and a single ventro-median one. Type Species:  Doryllium uniforme Cobb, 1920  syn. Dorylaimus (Doryllium) uniforme (Cobb, 1920) Micoletzky, 1922” From Goodey 1963 and Powers and Mullin website http://nematode.unl.edu/

Tylencholaimellinae. Small nematodes, less than 1 mm long. Lip region continuous or offset by depression or constriction; lips amalgamated, with their inner portion differentiated or not into a perioral disc. Cheilostom a truncate cone, lacking any specialization. Odontostyle relatively short, tubular, with distinct lumen and aperture. Odontophore with basal knobs or flanges. Anterior portion of the pharynx slender and weakly muscular, basal expansion a more or less pyriform bulb, speparated or not from the anterior portion by a constriction. Female genital system mono-opisthodelphic, with the anterior branch absent or reduced to a pre-vulval sac. Male with dorylaimid spicules and only one ventromedian supplement. Tail similar in both sexes: short and rounded.

References:

Goodey T. and J.B. Goodey. 1963. Soil and Freshwater Nematodes.  Butler and Tanner Ltd, London, Great Britain

Powers T. and P. Mullin. Plant and Insect Parasitic Nematodes. University of Nebraska Nematology Website. http://nematode.unl.edu/

Pena-Santiago, R. Freshwater Nematodes Ecology and Taxonomy. CABI Publishing. Page 369.

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).