| Inadvertent error (orth. inval.: "orth. null.") [ICZN, 1999: Art. 32.5.1] | |
Ref:
S.J. Upton, 2000. In Lee, J.J., Leedale, G.F. & Bradbury, P., An Illustrated Guide to the Protozoa, Second Edition, vol. 1. Society of Protozoologists, Lawrence, Kansas, U.S.A.: 331.
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