UICN status and category
Aquarist category
C0.0
Possibility of distribution to be completed
Possibility of distribution to be completed
C0.1
Totally extinct species
Species identified, extinct in nature. No number in captivity
C0.2
SPECIES TO BE DISTRIBUTED
Species identified, extinct in nature. Insufficient numbers in captivity
C0.3
Species to maintain
Species identified, extinct in nature. Sufficient numbers in captivity
C1.1
Species to collect
Identified species, endangered in nature. No number in captivity, never maintained
C1.2
Species to collect
Identified species, endangered in nature. No number in captivity, already maintained
C1.3
SPECIES TO BE DISTRIBUTED
Identified species, endangered in nature. Insufficient numbers in captivity
C1.4
Species to maintain
Identified species, endangered in nature. Sufficient numbers in captivity
C2
SPECIES TO BE DISTRIBUTED
Identified species, common in nature. Insufficient numbers in captivity
C3
Species to maintain
Identified species, common in nature. Sufficient numbers in captivity
C4
DO NOT DISTRIBUTE
Species identified, place of origin uncertain
C5
DO NOT DISTRIBUTE
Indeterminate or hybridized species
C6
DO NOT DISTRIBUTE
Species unsuitable for captivity with some exceptions
UICN status
UICN status to be completed
UICN status to be completed
Not evaluated
The probability of extinction has not yet been assessed
Data Deficient
Insufficient data to assess probability of extinction
Least Concern
Animals are widespread and abundant, the probability of extinction is zero
Near Threatened
The probability of being in danger exists in the near future
Vulnerable
The probability of being in danger exists is high
Endangered
The probability of extinction in nature is high
Critically Endangered
The probability of extinction in nature is very high
Extinct in the wild
The species no longer exists in its original environment, but exists in captivity or elsewhere
Extinct
The species no longer exists