Family Leptolaimidae

Revised 07/06/22






Leptolaimidae Orley, 1880

As of 2021, the family includes seven genera, five of which inhabit marine and brackish habitats (Holovachov & Boström, 2004). Of these genera, Leptolaimus de Man, 1876  inhabits marine or brackish habits and includes over 70 nominal species,several of which are considered invalid (Gharahkhani et al;., 2021).

There were three subfamilies: Anonchinae, Camacolaiminae and Leptolaiminae (Hope and Tchseunov, 1999).. Of these, Camacolaiminae has been elevated to the rank of family (Camacolaimidae) (Holovachov and Bostrom, 2004).

General Characteristics:

Ref: Hope and Tchseunov, 1999


Gharahkhani, A., E. Pourjam, O. Holovachov, M. Pedram. 2021. Phylogenetic relationships of Leptolaimus de Man, 1876 (Plectida: Leptolaimidae) with description of two new species from the Persian Gulf, Iran. Nematology 23:153-169.

Holovachov, O. and Bostrom, S. 2004. Morphology and systematics of the superfamilies Leptolaimoidea Örley, 1880 and Camacolaimoidea Micoletzky, 1924 (Nematoda: Plectida).  J. Nematode Morphology and Systematics 7:1-49.

Hope, W.D. and Tchesunov, A.V. 1999. Smithsoninema inaequale n.g,  and n.sp. (Nematoda, Leptolaimidae) inhabiting the test of a foraminiferan. Invertebrate Biology  118: 95­108.

Urkmez, D. and Brennan, M.L. 2013. A new species of Halaphanolaimus (Nematoda: Leptolaimidae) from the southern Black Sea (Turkey) with a modified key for species identification. Zootaxa 3691:220-228.


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