Paratype is a specimen other than holotype, isotype, or syntype mentioned in the protologue. The correct answer is Paratype.

Option Analysis

• Lectotype: A specimen selected later from syntypes (original series without holotype) to serve as the name-bearing type when no holotype exists. It becomes the definitive type post-protologue.

• Topotype: Specimen collected from the same locality (type locality) as the original type, but after description. Used for comparison, not part of protologue.​

• Paratype: Correct. Any specimen cited in the protologue (original description) excluding the holotype (single designated type), isotypes (exact duplicates of holotype), or syntypes (all originals without holotype). Supports the description but not name-bearing.

• Autotype: Duplicate of the holotype (synonym for isotype). Not distinct from excluded types.​

Introduction to Specimen Other Than Isotype Holotype Syntype Paratype

Specimen other than isotype holotype syntype paratype defines paratypes as supporting specimens in a species’ protologue under ICN rules. Essential for taxonomy stability.

Protologue and Type Specimens

Protologue is the original publication nomenclaturally validly describing a taxon. Contains holotype (single type), isotypes (duplicates), syntypes (series without holotype). Others like paratype aid diagnosis.

Paratype Role

Paratype specimens, cited in protologue but excluded from holotype/isotype/syntype, validate morphology/range. Not name-bearing; used if type lost (neotype selects from them).

Other Types Clarified

Lectotype resolves ambiguity post-description. Topotype from type locality, post-protologue. Ensures precise nomenclature per ICN.