Answer:

holotype -

a single type specimen upon which the description and name of a new species is based.

lsotype:-

An isotype usually refers to any related proteins/genes from a particular gene family.

paratype:-

a paratype is a specimen of an organism that helps define what the scientific name of a species and other taxon actually represents

lectotype:-

A lectotype is a specimen later selected to serve as the single type specimen for species originally described from a set of syntypes.