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Acrobeloides ?maximus (Thorne, 1925) Thorne, 1937

CGC strain code:


Old codes:

C1, WCUG1, B1


Nebe, central Senegal: Sahel soil 5 km south of Diourbel along road Diourbel-Gossas. Collected in January 1989 by Pierre Baujard.


Secernentea - Rhabditida - Cephalobina - Cephaloboidea - Cephalobidae

Culture conditions:

- Axenic: 3% yeast extract, 3% soy peptone, 0.5 µg/ml hemoglobin

- Monoxenic: E. coli on NA + 5mg/ml cholesterol + 1 mM CaCl2 + 1 mM MgSO4 + 25 mM K-phosphate buffer (pH=6).

Long-term storage:

No survival after freezing in glycerin. Can be stored 6-12 months on slowly desiccated plates; such plates can probably be stored permanently in liquid nitrogen.


Freely available in axenic medium.


Thorne, G. (1925). The genus Acrobeles von Linstow, 1877. Transactions of the American Microscopical Society 44: 171-209. Original description from US; not detailed.

Steiner, G. (1935). Opuscula miscellanea nematologica, I. Proceedings of the Helminthological Society of Washington 2: 41-45. Brief description of a male, good drawings.

A. maximus could be senior synonym of A. saeedi - cf. Siddiqi, M.R.; De Ley, P. & Khan, H.A. (1992). Acrobeloides saeedi sp.n. from Pakistan and redescription of A. bodenheimeri (Steiner) and Placodira lobata Thorne (Nematoda: Cephalobidae). Afro-Asian Journal of Nematology 2: 5-16.


Paul De Ley. See remark above on A. saeedi and notes below.


Apparently part of a species complex. Cultured specimens are morphologically very close to e.g. the amphimictic sinistral strains PS1158 and PS2160 (A. bodenheimeri) and to the amphimictic dextral strain PS2052 (A. camberenensis), but are parthenogenetic and have a higher reproductive rate. Very rare males appear only in very crowded plates. 
Last Updated: Monday 01 Nov. 2004