| Original name, rank & spelling | : | |
Lankester, E.R. 1877. Quart. J. Microsc. Sci. (N.S.) 17: 442 ("Grade"). [sine descr.]. ≡
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| Original use as a zoological name | : | |
op. cit.: 442 ("Protozoa").
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| Description/Diagnosis in English | : | |
Lankester, 1891: 23. ("Grade ... Lankester, 1878"). ≡ |
| Emended diagnosis (emend.) | : | |
Lankester, 1878: xviii ("Grade"). [sine descr.]. ≡ |