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. 2014 Nov 14;43(Database issue):D1086–D1098. doi: 10.1093/nar/gku1127

Table 2. Types of type. Parenthesized letters indicate the code of nomenclature for which the type is valid (B) botanical code, (Z) zoological code and (P) bacteriological code.

type strain (P) deposited in at least two different culture collections
neotype strain (P) replacement culture for a type that has been lost
holotype (BZ) single name-bearing type specimen
paratype (BZ) other specimens designated in the original type series
neotype (BZ) single name-bearing specimen designated when holotype is lost
allotype (Z) designated type specimen of opposite sex to the holotype
epitype (B) other specimen designated in subsequent type series
isotype (B) duplicate specimen of the holotype
syntype (BZ) one of a name-bearing series of type specimens
isosyntype (B) duplicate specimen of a syntype
lectotype (BZ) syntype subsequently designated as the single name-bearing type
paralectotype (B) syntype not subsequently designated as lectotypes
hapanotype (B) protist assemblage collectively designated as holotype
type material (-) type material of unknown type
reference material (-) non-type material designated for reference purposes
culture from type (-) living eukaryotic culture derived from type material