LepsGlossary (H)

One or more preparations consisting of directly related individuals representing distinct stages in the life cycle, which together form the name-bearing type in an extant species of protistan [Article 72.5.4 (ICodeZN)]. A hapantotype, while a series of individuals, is a holotype that must not be restricted by lectotype selection; however, if a hapantotype is found to contain individuals of more than one species, components may be excluded until it contains individuals of only one species [Article 73.3.2 (ICodeZN)].

A system of classification based on a sequence of taxonomic categories ranked by their increasing levels of inclusiveness.

A single specimen (except in the case of a hapantotype) designated or indicated the type specimen by the original author at the time of publication of the original description.

Authorship for two or more homonyms may be cited using ‘non’ and/or ‘nec’ as follows: A... Smith 1947 non Jones 1958 nec Brown 1960.

see Principle of homonymy.

Each of two or more identical but independently proposed names for the same or different taxa. See also Junior homonym, Senior homonym, Primary homonym, Secondary homonym.

Classification which stresses grouping together taxa in a similar stage of evolution, rather than location on the same phyletic line. See also: Vertical classification.

Names of progeny of two individuals belonging to different taxa, names given to hybrids are not normally available, as they are individuals, not populations, and hence not taxa. See Articles 1.3.3, 17, 23.8 (ICodeZN) for treatment of names given to hybrids and to taxa or hybrid origin.