Tylenchina

Female Cephalobus, from Marisol Quintanill Tornel.

Belongs within: Secernentea.
Contains: Strongyloidoidea, Sphaerularioidea, Aphelenchoidea, Criconematoidea, Tylenchoidea.

The Tylenchina is a group of nematodes supported as monophyletic by molecular analyses. The clade lacks clear morphological synapomorphies, but potential ancestral characters include a stegostom without epithelial interradial cells or glottoid part, the absence of a median bulb, mono-prodelphy, and the absence of a bursa (Ley & Blaxter 2002).

Tylenchina
    |  i. s.: Drilonematomorpha [Drilonematida, Drilonematoidea] LB02
    |           |--Drilonematidae LB02
    |           |--Ungellidae LB02
    |           |--Homungellidae LB02
    |           |--Pharyngonematidae LB02
    |           `--Creagrocercidae LB02
    |--Panagrolaimomorpha LB02
    |    |--Strongyloidoidea LB02
    |    `--Panagrolaimidae [Panagrolaimoidea] LB02
    |         |--Turbatrix aceti [=Anguillula aceti] H02
    |         |--Panagrellus H02
    |         |    |--P. redivivus W02
    |         |    `--P. silusiae W02
    |         `--Panagrolaimus Fuchs 1930 E86
    |              |--P. davidi W02
    |              |--P. rigidus L02
    |              `--P. ruffoi Andrassy 1962 E86
    `--+--Tylenchomorpha [Tylenchida] LB02
       |    |  i. s.: Parasitaphelenchus MM02
       |    |         Prothallonema MM02
       |    |--Sphaerularioidea LB02
       |    |--Aphelenchoidea LB02
       |    |--Criconematoidea LB02
       |    |--Tylenchoidea LB02
       |    `--Myenchoidea LB02
       `--Cephalobomorpha [Cephalobina, Cephaloboidea] LB02
            |--Elaphonematidae LB02
            |--Osstellidae LB02
            |--Alirhabditidae LB02
            |--Bicirronematidae LB02
            `--Cephalobidae LB02
                 |--Acrobeloides nanus H02
                 `--Cephalobus Bastian 1865 E86
                      |--C. dubius G02
                      |--C. lentus G02
                      |--C. persegnis MM02
                      |--C. quinilineatus J02
                      `--C. troglophilus Andrassy 1967 E86

*Type species of generic name indicated

REFERENCES

[E86] Eder, R. 1986. Nematoda from continental subterranean aquatic habitats. In Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) (L. Botosaneanu, ed.) pp. 125-132. E. J. Brill / Dr. W. Backhuys: Leiden.

[G02] Gems, D. 2002. Ageing. In The Biology of Nematodes (D. L. Lee, ed.) pp. 413-455. Taylor & Francis: Florence (Kentucky).

[H02] Hope, I. A. 2002. Embryology, developmental biology and the genome. In The Biology of Nematodes (D. L. Lee, ed.) pp. 121-145. Taylor & Francis: Florence (Kentucky).

[J02] Justine, J.-L. 2002. Male and female gametes and fertilisation. In The Biology of Nematodes (D. L. Lee, ed.) pp. 73-119. Taylor & Francis: Florence (Kentucky).

[L02] Lee, D. L. 2002. Behaviour. In The Biology of Nematodes (D. L. Lee, ed.) pp. 369-387. Taylor & Francis: Florence (Kentucky).

[LB02] Ley, P. de, & M. Blaxter. 2002. Systematic position and phylogeny. In The Biology of Nematodes (D. L. Lee, ed.) pp. 1-30. Taylor & Francis: Florence (Kentucky).

[MM02] Munn, E. A., & P. D. Munn. 2002. Feeding and digestion. In The Biology of Nematodes (D. L. Lee, ed.) pp. 211-232. Taylor & Francis: Florence (Kentucky).

[W02] Wharton, D. A. 2002. Nematode survival strategies. In The Biology of Nematodes (D. L. Lee, ed.) pp. 389-411. Taylor & Francis: Florence (Kentucky).