The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status exist and are in use at international, multi-country, national and local levels as well as for consumer use.
Diaptomus is a genus of copepods with a single eye spot. It is superficially similar in size and appearance to Cyclops. However it has characteristically very long first antennae that exceed the body length. In addition, the females carry the eggs in a single sac rather than the twin sacs seen in Cyclops. It is a copepod of larger freshwater ponds, lakes and still waters.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss.
Aglaodiaptomus is a genus of copepods in the family Diaptomidae. They are often bright red or blue due to carotenoid pigments.
Aglaodiaptomus marshianus is a species of calanoid copepod in the family Diaptomidae.
Allanaspides helonomus is a species of mountain shrimp in the family Anaspididae.
Allanaspides hickmani is a species of mountain shrimp in the family Anaspididae.
Allodiaptomus satanas is a species of calanoid copepod in the family Diaptomidae.
Haplophthalmus abbreviatus is a species of woodlouse in the family Trichoniscidae. It is found in Europe & Northern Asia.
Hesperodiaptomus augustaensis is a species of calanoid copepod in the family Diaptomidae.
Hesperodiaptomus californiensis is a species of calanoid copepod in the family Diaptomidae.
Mastigodiaptomus is a genus of Neotropical copepods in the family Diaptomidae. Two of the eight species in the genus are listed as Data Deficient (DD) on the IUCN Red List, and one is listed as a vulnerable species (VU):
Monolistra bolei is a species of isopod in the family Sphaeromatidae.
Skistodiaptomus carolinensis is a species of calanoid copepod in the family Diaptomidae.
Thermosphaeroma macrura is a species of isopod in the family Sphaeromatidae. It is found in Mexico.
Thermosphaeroma milleri is a species of isopod in the family Sphaeromatidae. It is found in Mexico.
Thermosphaeroma smithi is a species of isopod in the family Sphaeromatidae. It is found in Mexico.
Tropodiaptomus madagascariensis is a species of calanoid copepod in the family Diaptomidae.
Tropodiaptomus worthingtoni is a species of calanoid copepod in the family Diaptomidae.
Paratriaenops pauliani is a species of bat in the family Hipposideridae. It is endemic to Aldabra Atoll of the western Seychelles, where it was found on Picard Island. It was formerly considered to be part of the species Triaenops furculus, known from Madagascar, and was initially assigned as a new species within the genus Triaenops. Later it as well as T. furculus were placed in the separate genus Paratriaenops. A related species, Paratriaenops auritus, also of Madagascar, was similarly reassigned.
