Admirandus

  

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Rev 08/28/2026

  Classification Hosts
Morphology and Anatomy Life Cycle
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Classification:
Enoplea
     Enoplia
        Enoplida
              Oncholaimoidea
                    Oncholaimidae
Adoncholaiminae

Admirandus Belogurov & Belogurova, 1979

Type species of the genus: Admirandus multicavus Belogurov & Belogurova, 1979

Synonyms:

 

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Morphology and Anatomy:

 
  • Outer labial and cephalic sensilla papilliform.
  • Cephalic sensilla surrounded by marginal lamellae in form of hook-like plates.
  • Buccal capsule elongate. Three onchia in buccal cavity, largest located on right ventrosublaterally and other two equal in size. 
  • Tail anteriorly conical, posteriorly cylindrical.

Female:

  • Didelphic
  • Vulva at mid-body
  • Demanian tube system of Adoncholaimus type, but with postanal terminal canals and pores situated on tail.

Male:

  • Spicules curved, relatively long, slender, proximally cephalated, distally pointed, slightly broadening anterior to distal end.
  • Gubernaculum present.
  • Ventromedian precloacal supplements present or not.
  • Precloacal and postcloacal sensilla long, setiform

Ref: Mordukhovich et al., 2015; Smol et al., 2014; Huang and Guo, 2022
Body size range for the species of this genus in the database - Click:
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Distribution:

Free-living marine  and brackish water nematodes. Type species described from subtidal muddy sediments in the Sea of Japan and east China Sea.

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Economic Importance:

 

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Feeding:

Food Sources and Feeding strategies for the genus Admirandus

 

     Probably omnivore-predators with large stoma and sharp teeth (Heip et al., 1985; Tchesunov, 2015)

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Life Cycle:

For Ecophysiological Parameters for this genus, click 
 
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Damage:

 

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Management:

 

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References:

Belogurov, O.I. and Belogurova, L.S. 1979. [Morphology of three species of marine nematodes of the genus Adoncholaimus Filipjev, 1918 and validation of Admirandus multicavus gen. et sp. n. (Nematoda, Oncholaimidae).] In: Freeliving and parasitic worms. Vladivostok, USSR, Far-Eastern University, pp. 37-63.

Heip, C., Vincx, M., Vranken, G. 1985. The ecology of marine nematodes. Oceanography and marine biology. Ann Rev Lond 23:399-489

Huang, Y. and Guo, Y. 2022. Free-living Marine Nematodes from the East China Sea, https://doi.org/10.1007/978-981-16-3836-7_10

Mordukhovich, V., Atopkin, D., Fadeeva, N., Yagodina, V., Zograf, H. 2015. Admirandus multicavus and Adoncholaimus ussuriensis sp. n. (Nematoda: Enoplida: Oncholaimidae) from the Sea of Japan. Nematology 17:1229-1224

Smol, N., Muthumbi, A., Sharma, J. 2014. Order Enoplida, 7.3. In Schmidt-Rhaesa, A. (ed) Handbook of Zoology. De Gruyter, Berlin

Tchesunov, A.V. 2015. Free-living nematode species (Nematoda) in hydrothermal sites of the North Mid-Atlantic Ridge. Helgoland Marine Research 69:343-384.

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Revised by Howard Ferris: August 28, 2026.