The following brief video shows how to label and barcode tissue vials for the MVZ collections. It also provides some guidance on the types and order of tissues preserved (example is for birds; the types of tissues preserved may differ among collections).


Labeling Tissue Cap Inserts

Nalgene caps for standard MVZ tissue vials accommodate color-coded inserts that are used to label the collection. The collection is color-coded as follows:

  • Birds – white
  • Mammals – yellow
  • Herps – green

After specimens and tissues have been cataloged for an accession, tissue vial cap inserts should be labeled with the MVZ catalog number and the collector initial plus number using a “Cancer” pen as follows:

  1. Write the MVZ number (e.g., 180000) just below the semi-circle hole in the insert
  2. Draw a line below that number
  3. Write the collector’s initials and number below the line (e.g., JLP 1650)

Because the collector’s initials and number are written on the vial, adding this information on the cap insert allows matching of the cap and correct MVZ number with the vial in case of inadvertent mixing.

If there are multiple vials for a given specimen, add a single dot above the hole for the first sample, 2 dots for the second sample, 3 dots for the third sample, and so on. If the multiple vials have different preservation methods, the first dot(s) should be given to frozen tissue(s) and subsequent dot(s) to non-frozen samples.