IUCN Red List version 2019-3: Table 3a Last Updated:10 December 2019 Table 3a: Status category summary by major taxonomic group (animals) Subtotal** Subtotal Subtotal Class* EX EW CR(PE)** CR(PEW)** (EX+EW+ CR EN VU NT LR/cd DD LC Total (EX+EW) (threatened spp.) CR(PE)+CR(PEW)) MAMMALIA 81 2 83 00 83 203 505 536 1,244 345 0 872 3,306 5,850 AVES 159 5 164 00 164 225 461 800 1,486 1,017 0 53 8,427 11,147 REPTILIA 30 3 33 00 33 309 565 535 1,409 432 2 1,159 4,794 7,829 AMPHIBIA 33 2 35 00 35 588 964 648 2,200 374 0 1,370 2,815 6,794 CEPHALASPIDOMORPHI 10 1 00 1 242 8 30 3 22 37 MYXINI 00 0 00 0 126 9 2030 35 76 CHONDRICHTHYES 00 0 00 0 42 57 107 206 112 0 438 368 1,124 ACTINOPTERYGII 62 10 72 00 72 546 804 1,098 2,448 556 1 3,510 11,368 17,955 SARCOPTERYGII 00 0 00 0 111 3 00 0 4 7 HOLOTHUROIDEA 00 0 00 0 079 16 00244 111 371 ECHINOIDEA 00 0 00 0 000 0 10 0 0 1 ARACHNIDA 90 9 00 9 60 84 53 197 10 0 39 89 344 CHILOPODA 00 0 00 0 351 9 00 0 1 10 DIPLOPODA 30 3 00 3 34 32 18 84 42 0 34 37 200 ENTOGNATHA 00 0 00 0 202 4 20 0 0 6 BRANCHIOPODA 00 0 00 0 61022 38 11 1 1 42 MALACOSTRACA 71 8 00 8 138 161 307 606 71 0 1,132 1,199 3,016 MAXILLOPODA 20 2 00 2 7071 78 0822 0 110 OSTRACODA 20 2 00 2 209 11 00 0 0 13 INSECTA 62 1 63 00 63 311 571 765 1,647 545 3 2,227 4,211 8,696 MEROSTOMATA 00 0 00 0 011 2 00 2 0 4 ONYCHOPHORA 00 0 00 0 324 9 10 1 0 11 CLITELLATA 20 2 00 2 6138 27 12 0 107 74 222 POLYCHAETA 00 0 00 0 100 1 00 1 0 2 BIVALVIA 32 0 32 00 32 74 62 55 191 56 4 170 341 794 GASTROPODA 267 14 281 00 281 592 500 962 2,054 626 0 1,632 2,612 7,205 CEPHALOPODA 00 0 00 0 122 5 20419 324 750 ENOPLA 10 1 00 1 111 3 00 1 1 6 TURBELLARIA 10 1 00 1 000 0 00 0 0 1 ANTHOZOA 00 0 00 0 6 26 202 234 175 0 166 293 868 HYDROZOA 00 0 00 0 122 5 10 2 8 16 TOTAL 754 38 792 0 0 792 3,165 4,842 6,227 14,234 4,386 19 13,635 40,441 73,507 IUCN Red List Categories: EX - Extinct, EW - Extinct in the Wild, CR - Critically Endangered (includes CR(PE) and CR(PEW)), EN - Endangered, VU - Vulnerable, LR/cd - Lower Risk/conservation dependent, NT - Near Threatened (includes LR/nt - Lower Risk/near threatened), DD - Data Deficient, LC - Least Concern (includes LR/lc - Lower Risk/least concern). * Animals: Mammalia (mammals), Aves (birds), Reptilia (reptiles), Amphibia (amphibians), Cephalaspidomorphi (lampreys), Myxini (hagfishes), Chondrichthyes (sharks, skates, rays and chimaeras), Actinopterygii (bony fishes), Sarcopterygii (coelacanth), Holothuroidea (sea cucumbers), Echinoidea (sea urchins, starfish, etc), Arachnida (spiders and scorpions), Chilopoda (centipedes), Diplopoda (millipedes), Entognatha (ametabolous arthropods), Branchiopoda (fairy shrimp, clam shrimp, tadpole shrimp and water fleas), Malacostraca (crabs, lobsters, shrimp, krill, woodlice, amphipods, mantis shrimp, etc.), Maxillopoda (barnacles, copepods, etc.), Ostracoda (seed shrimp), Insecta (insects), Merostomata (horshoe crabs), Onychopora (velvet worms), Clitellata (leeches and earthworms), Polychaeta (marine bristle worms), Bivalvia (mussels and clams), Gastropoda (snails, etc), Enopla (nemertine worms), Turbellaria (flatworms), Anthozoa (sea anemones and corals), Hydrozoa (corals). ** CR(PE) & CR(PEW): The tags 'Possibly Extinct' and 'Possibly Extinct in the Wild' have been developed to identify CR species that are likely already extinct (or extinct in the wild), but require more investigation to confirm this.NOTE that these are not IUCN Red List Categories; they are tags that can be attached to the CR category to highlight those taxa that are possibly extinct. They are included in the above table to indicate a plausible upper estimate for number of recently extinct species on The IUCN Red List. For the full list of CR(PE) and CR(PEW) species in the current IUCN Red List, see Table 9..