Family Neodiplogastridae

                                 Rev 02/26/2024

Classification:

      Chromadorea
       Chromadoria
       Rhabditida
        Rhabditina
            Diplogastroidea
                 Neodiplogastridae Paramonov, 1952

Morphology and Anatomy:

Neodiplogastridae is distinguished from Diplogastridae in the asymmetric versus symmetric metastom and the movable teeth versus fixed teeth.

Two subfamilies: Neodiplogastrinae Paramonov, 1952  and Mononchoidinae Andrassy, 1976.

Mononchoidinae: Stegostom in left subventral position always with a serrate plate.

Neodiplogastrinae: Stegostom in left subventral position with one or two denticles, or without any armament.

In some genera the stoma comes in two forms, a longer, narrower form with less armamentation (stenostomous form) and a shorter, wider, more heavily armed form (eusrystomous form), eg., in Pristionchus.  Prevalence of the two forms may relate to food availability and whether the species is in predatory or becterivore mode.


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References

Andrassy, I. 2005. Free-living nematodes of Hungary Vol I.  Hungarian Natural History Museum.

De Ley, P. and Blaxter. M. 2004.  A new system for Nematoda: combining morphological characters with molecular trees, and translating clades into ranks and taxa.  Nematology Monographs and Perspectives, 2004: 633-653.

 Gagarin, V.G. & Nguyen Vu Thanh. 2006. Re-classification of Neodiplogasteridae with notes on the genus Glauxinema Allgen, 1947 and description of G. aquaticum sp. n. from Vietnam (Nematoda). Zoosystematica Rossica, 15:1-6

 

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