Sentence:  Some <WSD>biocodes</WSD> for new species give identifications for species already included in the database. In these cases, additional tests must be performed to arrive at the correct identification. However, some new species do generate <WSD>biocodes</WSD> that are unique. 
Meaning of the word marked with <WSD> tags:  A single numeric value calculated from a collection of biometric data; profile.