Care field guide
Isopod Taxonomy, Morphs & Trade Names
Learn how species names, morph labels, localities, and uncertain hobby designations differ, and how to keep accurate isopod colony records.
Updated September 15, 2026
Fallen leaves on a woodland floor in Guelph, Ontario.
Photo by Ryan Hodnett · CC BY-SA 4.0 · Resized / WebP.
An isopod label can describe formal taxonomy, appearance, collection history, or simply the name used in trade. Those categories are not interchangeable. Accurate records protect husbandry information and prevent a confident-sounding hobby name from becoming an unsupported scientific claim.
Four kinds of label
| Label type | What it means | Example |
|---|---|---|
| Accepted species | A formal binomial recognized in a taxonomic source | Armadillidium vulgare |
| Morph or selected line | A heritable or maintained captive appearance within a species | A. vulgare “Magic Potion” |
| Locality | A documented place associated with collected source stock | Valid only with preserved provenance |
| Trade designation | A market name without a verified species-level identification | Cubaris sp. “Rubber Ducky” |
“Sp.” means that the genus is being used without a formal species name. It is not itself a species epithet and does not prove that every animal sold with the same quoted label belongs to one undescribed species.
Accepted names and databases
The World Isopod Database, published through WoRMS, provides taxonomic records for recognized terrestrial isopods. GBIF aggregates biodiversity records and taxonomic backbones. These sources can establish that Porcellionides pruinosus or Armadillidium vulgare is an accepted name; they cannot authenticate a seller's captive colony from a listing photograph.
Taxonomy can also change as species are revised. Record the name used at acquisition and the source consulted rather than silently overwriting old labels. A synonym in a database has more context than a different spelling copied from a social post.
Morphs are not species
Powder Blue and Powder Orange are hobby color forms associated with the parent species Porcellionides pruinosus. Their color labels help manage cultures, but they do not create two formally described species.
Magic Potion is a selected pattern within Armadillidium vulgare. Additional line words require breeder records. Two animals with similar colors may have different documented histories, while animals from one line may vary in appearance.
Do not infer different care requirements from color alone. Use line-specific breeder reports when they are clearly attributed, then distinguish those observations from species-wide evidence.
Trade designations and uncertain placement
Rubber Ducky and Panda King are retained here as Cubaris sp. trade designations. The genus Cubaris is recognized, but that fact does not formally identify the hobby animals at species level.
This cautious notation is more useful than inventing precision. It lets keepers find the common trade animal while showing that origin stories, cave associations, and species identity may rest on supplier reports rather than a published taxonomic description.
Locality needs provenance
A locality label should trace to documented source stock. Appearance cannot recover a missing collection record. Do not add a country or cave name because a similar-looking animal is said to occur there.
For a captive line, preserve the supplier, acquisition date, exact original label, and any written provenance. If the history is unknown, record “provenance not provided” rather than assigning a likely origin.
A durable colony label
Use a label and digital record with:
- accepted species name when supported;
- morph or trade designation in quotation marks;
- locality only when documented;
- supplier and acquisition date;
- your internal colony identifier;
- source links or correspondence supporting the identification;
- crosses, splits, and transfers between cultures.
For example, Porcellionides pruinosus “Powder Orange” — supplier label retained — acquired 2026-09-15 distinguishes a species name from the color label without claiming a locality.
Buying and exchanging stock
Ask the seller for the complete label and whether cultures have been mixed. Request the conditions in which their colony is reproducing, especially when a profile lacks a verified range. Treat stock photos as illustrations unless the seller states they show the exact colony.
When sharing animals, pass the original record forward. Do not upgrade “sold to me as” into “confirmed,” and do not rename a culture to match a more valuable line. Use the quarantine guide before combining any new acquisition with established stock.
Sources
- World Isopod Database — taxonomic database and accepted-name context.
- GBIF species search — biodiversity backbone and occurrence-record context.
- International Code of Zoological Nomenclature — rules governing formal zoological names.
- World Isopod Database: Porcellionides pruinosus — example accepted species record.
- World Isopod Database: Armadillidium vulgare — example accepted species record.
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