| Holotype | : | The single specimen (except in the case of a hapantotype) designated or otherwise fixed as the name-bearing type of a nominal species or subspecies when the nominal taxon is established. |
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| Paratype | : | Each specimen of a type series other than the holotype. |
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| Neotype | : | The single specimen designated as the name-bearing type of a nominal species or subspecies when there is a need to define the nominal taxon objectively and no name-bearing type is believed to be extant. |
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| Syntype | : | Each specimen of a type series from which neither a holotype nor a lectotype has been designated. The syntypes collectively constitute the name-bearing type. |
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| Lectotype | : | A syntype designated as the single name-bearing type specimen subsequent to the establishment of a nominal species or subspecies. |
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| Paralectotype | : | Each specimen of a former syntype series remaining after the designation of a lectotype. |
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| Allotype | : | A term, not regulated by the ICZN, for a designated specimen of opposite sex to the holotype. |
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| Topotype | : | A term, not regulated by the ICZN, for a specimen originating from the type locality of the species or subspecies to which it is thought to belong, whether or not the specimen is part of the type series. |
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