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754  Added Entry–Taxonomic Identification (R)

Input Standards

1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
‡a Taxonomic name (R) Mandatory/Mandatory
‡c Taxonomic category (R) Mandatory/Mandatory
‡d Common or alternative name (R) Optional/Optional
‡x Nonpublic note (R) Optional/Optional
‡z Public note (R) Optional/Optional
‡0 Authority record control number (R) Optional/Optional
‡2 Source of taxonomic identification (NR) Mandatory/Mandatory


Taxonomic identification information associated with the item.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank ( blank character ).

blank character


2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank ( blank character ).

blank character



‡a Taxonomic name

The taxonomic name conforms to the syntax controls of the taxonomic classification system identified in subfield ‡2. Precede subfield ‡a by subfield ‡c, which indicates the taxonomic hierarchical category to which the name belongs. Repeat subfield ‡a for each taxonomic name associated with the item. Each combination is input in repeatable subfields ‡c and ‡a in taxonomic hierarchical order.

754     ‡c phylum ‡a Vertebrata ‡d Vertebrates ‡c class ‡a Mammalia ‡d Mammals ‡c order ‡a Rodentia ‡d Rodents ‡c family ‡a Castoridae ‡d Beaver family ‡2 Linnaean taxonomy
‡c Taxonomic category

The taxonomic category to which the name in subfield ‡a belongs. The terms used in this subfield are specified by the thesaurus identified in subfield ‡2. Subfield ‡c always precedes the data with which it is associated.

754     ‡c kingdom ‡a Plantae ‡c class ‡a Liliopsida ‡c family ‡a Pontederiaceae ‡c genus ‡a Eichhornia kunth ‡d Water hyacinth ‡2 PLANTS database
‡d Common or alternative name

The common or alternative name to which the name in subfield ‡a belongs. Subfield ‡d may refer to one or multiple occurrences of subfield ‡a.

754     ‡c species ‡a Ptychocheilus oregonensis ‡d Northern pikeminnow ‡2 Integrated Taxonomic Information System (ITIS)
‡x Nonpublic note

A note pertaining to the taxonomic identification of the item that is in a form not adequate for public display.

754     ‡c family ‡a Gekkonidae ‡c genus ‡a Hemidactylus ‡c species ‡a Turcicus ‡d Mediterranean gecko ‡d Mediterranean gekko ‡x Hemidactylus turcicus. ‡2 Integrated Taxonomic Information System (ITIS)
‡z Public note

A note pertaining to the taxonomic identification of the item that is in a form adequate for public display.

754     ‡c family ‡a Pottiaceae ‡c genus ‡a Barbula ‡c species ‡a agraria ‡x Barbula agraria. ‡z Species authority: Hedw. turcicus. ‡2 PLANTS database
‡0 Authority record control number

Subfield ‡0 (zero) contains the system control number of the related authority record or a standard identifier such as an International Standard Name Identifier (ISNI). The control number or identifier is preceded by the appropriate MARC Organization code (for a related authority record) or the Standard Identifier source code (for a standard identifier scheme), enclosed in parentheses. See MARC Code List for Organizations ( for a listing of organization codes and Standard Identifier Source Codes ( for code systems for standard identifiers. Subfield ‡0 is repeatable for different control numbers or identifiers.

‡2 Source of taxonomic identification

The name or MARC code that identifies the source list from which the taxonomic identification was assigned. For the MARC code, see Taxonomic Classification Source Codes (

754     ‡c class ‡a Actinopterygii ‡d Ray-finned fishes ‡c order ‡a Siluriformes ‡d Catfishes ‡c family ‡a Plotosidae ‡d Eel catfishes ‡c species ‡a Plotosus canius Hamilton ‡d Canine catfish eel ‡2 Integrated Taxonomic Information System (ITIS)

This page last revised: September 4, 2015