Diploscapter coronatus

 

Contents

 

Rev 01/10/2022

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Diploscapter Menu Ecosystem Functions and Services
Distribution Management
Return to Diploscapteridae Menu Feeding  References
Go to Nemaplex Main Menu       Go to Dictionary of Terminology

 


Classification:

          Chromadorea

              Rhabditia

                Rhabditida

                  Rhabditoidea

                   Diploscapteridae

 

        Diploscapter coronatus (Cobb, 1893) Cobb, 1913

Synonyms:

Rhabditis coronata Cobb, 1893

 Rhabditis bicornis Zimmermann, 1898

 Diploscapter bicornis (Zimmermann, 1898) Goodey, 1963

Rhabditis cephaloides Stefan´ski, 1922

 Acrobeles armatus Kreis, 1929.

Back to Top

Morphology and Anatomy:

  • :Small nematodes, 358 to 504 um long.

  • Cuticle annulated; annuli about 2 um wide at midbody.

  • Lateral field occupying 14 to 22% of the midbody diameter, with four incisures

  • Lip region with six lips: the subdorsal and the subventral are very refractive and hook-like (4to 5 um high); the lateral lips are membranous, high and with dentate margin, not easily observed under LM

  • Stoma rhabditoid. Buccal prism with straight walls, very long and narrow. Stegostom lacking glottoid apparatus.

  • Esophageal corpus well demarcated, slightly longer than isthmus and basal bulb together; procorpus cylindrical and metacorpus swollen, almost as long as wide.

  •  Basal bulb spheroid, with well developed valves at its middle.

  • Cardia hemispherical, surrounded by intestinal tissue.

  • Excretory pore at 77 to 92% of neck length, at level of posterior portion of isthmus or basal bulb. Deirid at basal bulb level, at 81 to 97% of neck length.

  • Reproductive system didelphic-amphidelphic. Anterior genital branch dextral (on the right side of intestine) and posterior branch sinistral (on the left).

  • Ovaries with a flexure, rarely straight.

  • Uterus short, less than the corresponding body diameter long.

  • Vagina with thin walls, extending inwards one-third of body diameter.

  • Rectum 0.8 to 2.0 times anal body diameter long.

  • Tail conical-elongate to filiform, ending in acute tip. Phasmid at 11 to 12% of tail length.

  • Male not seen

 


Anterior region of Diploscapter coronatus
(from Abolafia and Pena-Santiago, 2007)

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

 

Back to Top

Distribution:

 

Back to Top

Feeding:

  Bacterivores. The hook-like processes on the dorsal and ventral lips are involved in sweeping the bacterial mass towards the mouth.

Back to Top

Biology and Ecology:

 

Back to Top

Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters

 
 
Back to Top

 


Ecosystem Functions and Services:

 

Back to Top

Management:

Back to Top

References:

Abolafia, J and Pena-Santiago, R. 2007. Nematodes of the Order Rhabditida from Andalucía Oriental, Spain. The Genera Protorhabditis (Osche, 1952) Dougherty, 1953 and Diploscapter Cobb, 1913, with Description of P. spiculocrestata sp. n. and a Species Protorhabditis Key. Journal of Nematology, 39:263-274

Back to Top

Copyright © 1999 by Howard Ferris.
Revised: January 10, 2022.