List of Data Deficient species in Japan
This is a list of Data Deficient species in Japan according to the IUCN Red List.
This list was last updated 2019-09-14
This list contains only species that have been assessed for the IUCN Red List. It is therefore not representative of all the species in the country.
Species counts by country: Total | Amphibians | Birds | Fish | Mammals | Reptiles | Vascular Plants.
| scientific_name | common_name | taxonid | category |
|---|---|---|---|
| Paraliparis atramentatus | 165913 | DD | |
| Alnus firma | 194589 | DD | |
| Parribacus japonicus | Japanese Mitten Lobster | 170013 | DD |
| Drawida companio | 118808623 | DD | |
| Metanephrops japonicus | Japanese Lobster | 170036 | DD |
| Juniperus chinensis var. tsukusiensis | 63548 | DD | |
| Carpinus laxiflora | 194624 | DD | |
| Amynthas yunoshimensis | 118829121 | DD | |
| Alnus maximowiczii | 194633 | DD | |
| Alnus fauriei | 194647 | DD | |
| Holothuria minax | 180310 | DD | |
| Carpinus japonica | Japanese Hornbeam | 194662 | DD |
| Panulirus brunneiflagellum | 170091 | DD | |
| Alnus hakkodensis | Monkey class alder | 194669 | DD |
| Luchuena hachijoensis | 12397 | DD | |
| Luciogobius pallidus | Well Earthworm Goby | 12404 | DD |
| Alnus sieboldiana | 194678 | DD | |
| Cambaroides japonicus | 153751 | DD | |
| Psammocora decussata | 133275 | DD | |
| Parastichopus nigripunctatus | 180382 | DD | |
| Conus tuberculosus | 192672 | DD | |
| Metaphire tosaensis | 118837412 | DD | |
| Amynthas japonicus | 118812839 | DD | |
| Apostichopus nigripunctatus | 19712189 | DD | |
| Conus kawamurai | 192706 | DD | |
| Polymixia sazonovi | 135403715 | DD | |
| Ateleopus edentatus | 123320518 | DD | |
| Neophaedusa spelaeonis | 14540 | DD | |
| Plestiodon takarai | 114618571 | DD | |
| Duplodicodrilus acinctus | 118829286 | DD | |
| Hypoptychus dybowskii | Korean Sandlance | 65134839 | DD |
| Scarus obishime | Yellowtail Parrotfish | 190716 | DD |
| Conus kiicumulus | 192806 | DD | |
| Ostichthys hypsipterygion | 67899687 | DD | |
| Apostichopus nipponensis | 19712304 | DD | |
| Drawida koreana ssp. shindo | 118808883 | DD | |
| Anoectochilus koshunensis | Jewel Orchid | 44392769 | DD |
| Guentherus katoi | 123320646 | DD | |
| Corylopsis pauciflora | 35145 | DD | |
| Eisenia japonica ssp. hiramoto | 117373257 | DD | |
| Ijimaia dofleini | 123320674 | DD | |
| Microphis jagorii | Philippine River Pipefish | 65403235 | DD |
| Ijimaia fowleri | 123320677 | DD | |
| Maroubra yasudai | Orange Pipefish | 65370481 | DD |
| Amynthas oyuensis | 118839678 | DD | |
| Awalycaeus akiratadai | 2443 | DD | |
| Neutrodiaptomus formosus | 14745 | DD | |
| Chamalychaeus expanstoma | 4524 | DD | |
| Chamalychaeus itonis ssp. nakashimai | 4525 | DD | |
| Chamalychaeus miyazakii | 4526 | DD | |
| Chamalychaeus takahashii | 4527 | DD | |
| Chamalychaeus yanoshigehumii | 4528 | DD | |
| Mandarina anijimana | 12740 | DD | |
| Mandarina aureola | 12741 | DD | |
| Mandarina chichijimana | 12742 | DD | |
| Hynobius katoi | 61895 | DD | |
| Mandarina exoptata | 12743 | DD | |
| Mandarina hahajimana | 12744 | DD | |
| Mandarina hirasei | 12745 | DD | |
| Mandarina mandarina | 12746 | DD | |
| Mandarina polita | 12747 | DD | |
| Mandarina luhuana | 12750 | DD | |
| Mandarina ponderosa | 12748 | DD | |
| Mandarina suenoae | 12749 | DD | |
| Onychoteuthis lacrima | 190929 | DD | |
| Angustassiminea yoshidayukioi | 188887 | DD | |
| Pisidium parvum | 188895 | DD | |
| Amynthas flavescens | 118809058 | DD | |
| Gnathophis xenica | 199141 | DD | |
| Synallactes chuni | 19743205 | DD | |
| Nobuea kurodai | 14827 | DD | |
| Bathypolypus rubrostictus | 190956 | DD | |
| Prunus incisa | Fuji Cherry | 50475511 | DD |
| Diplommatina circumstomata | 6660 | DD | |
| Diplommatina lateralis | 6661 | DD | |
| Camellia uraku | 62059020 | DD | |
| Aegista inexpectata | 530 | DD | |
| Aegista intonsa | 531 | DD | |
| Assiminea bella | 188970 | DD | |
| Amynthas hatomajimensis | 120072752 | DD | |
| Anisus noziriensis | 188985 | DD | |
| Picea maximowiczii var. senanensis | 31293 | DD | |
| Amynthas toriii | 120072771 | DD | |
| Ogasawarana optima | 15177 | DD | |
| Bathyraja abyssicola | Deepsea Skate | 2636 | DD |
| Segmentina mica | 189038 | DD | |
| Okamejei schmidti | Browneye Skate | 161725 | DD |
| Synallactes multivesiculatus | 19743348 | DD | |
| Phoca vitulina ssp. stejnegeri | Western Pacific Harbor Seal | 17014 | DD |
| Akiyoshia kishiiana | 189077 | DD | |
| Okamejei boesemani | Boeseman's Skate | 161735 | DD |
| Japonia hispida | 10915 | DD | |
| Japonia shigetai | 10916 | DD | |
| Japonia striatula | 10917 | DD | |
| Luciogobius dormitoris | 122055334 | DD | |
| Drawida tairaensis | 117371561 | DD | |
| Luciogobius fluvialis | 122055342 | DD | |
| Nupalirus chani | Small Furrow Lobster | 185007 | DD |
| Palinustus holthuisi | 185009 | DD | |
| Luciogobius fonticola | 122055365 | DD | |
| Metaphire vesiculata | 118837965 | DD | |
| Sepia tokioensis | 162511 | DD | |
| Sepia longipes | Longarm Cuttlefish | 162512 | DD |
| Austrorossia bipapillata | Big-eyed Bobtail Squid | 162518 | DD |
| Sepiadarium nipponianum | 162530 | DD | |
| Sinanodonta ogurae | 189155 | DD | |
| Sepia tenuipes | 162540 | DD | |
| Homeryon armarium | 185079 | DD | |
| Amynthas obscurus | 118815487 | DD | |
| Cavernacmella yamamotonis | 189187 | DD | |
| Malus zumi | 50133766 | DD | |
| Laemodonta exaratoides | 189201 | DD | |
| Sepia pardex | 162583 | DD | |
| Chimaera jordani | Jordan’s Chimaera | 60184 | DD |
| Chimaera owstoni | Owston’s Chimaera | 60186 | DD |
| Cipangochalax placeonovitas | 4891 | DD | |
| Cipangocharax okamurai | 4892 | DD | |
| Hydrolagus barbouri | Ninespot Chimaera | 60190 | DD |
| Sepia peterseni | 162588 | DD | |
| Hydrolagus purpurescens | Purple Ghostshark | 60196 | DD |
| Centrophorus tessellatus | Mosaic Dogfish | 60208 | DD |
| Melanoides rufescens | 189235 | DD | |
| Radix hamadai | 189237 | DD | |
| Drawida eda | 117369659 | DD | |
| Ogasawarana arata | 15170 | DD | |
| Ogasawarana capsula | 15171 | DD | |
| Bythinella kubotai | 189255 | DD | |
| Ogasawarana comes | 15172 | DD | |
| Ogasawarana discrepans | 15173 | DD | |
| Ogasawarana hirasei | 15180 | DD | |
| Ogasawarana microtheca | 15174 | DD | |
| Ogasawarana nitida | 15175 | DD | |
| Ogasawarana ogasawarana | 15176 | DD | |
| Sepia subtenuipes | 162640 | DD | |
| Sphaerium myadii | 189269 | DD | |
| Sepia appellofi | 162653 | DD | |
| Epinephelus suborbitalis | Seamount Grouper | 64405 | DD |
| Margaritifera laevis | 189347 | DD | |
| Stenomelania uniformis | 189354 | DD | |
| Assiminea estuarina | 189356 | DD | |
| Gyraulus pulcher | 189379 | DD | |
| Oncorhynchus iwame | Iwame Trout | 15320 | DD |
| Albula koreana | 199659 | DD | |
| Bodianus thoracotaeniatus | 187391 | DD | |
| Amynthas scholasticus | 118817796 | DD | |
| Sepia aureomaculata | 162621 | DD | |
| Conger jordani | 103685136 | DD | |
| Mesothuria thomsoni | 19743767 | DD | |
| Myoxocephalus tuberculatus | 154659 | DD | |
| Halichoeres bleekeri | 187432 | DD | |
| Pteragogus aurigarius | 187433 | DD | |
| Rossia mollicella | 162628 | DD | |
| Enteroctopus hongkongensis | 191540 | DD | |
| Sebastes nivosus | 154685 | DD | |
| Inversidens brandtii | 173125 | DD | |
| Abies homolepis var. umbellata | 191564 | DD | |
| Arothron carduus | 193613 | DD | |
| Amblyeleotris japonica | 68326478 | DD | |
| Abies sachalinensis var. nemorensis | 191572 | DD | |
| Paramonacanthus matsuurai | 154710 | DD | |
| Carex tsushimensis | 44393562 | DD | |
| Conacmella vagans | 5216 | DD | |
| Caridina okinawa | 197746 | DD | |
| Sphaerium biwaense | 189561 | DD | |
| Valvata japonica | 189569 | DD | |
| Astrabe fasciata | 154758 | DD | |
| Macrobrachium miyakoense | 197782 | DD | |
| Ebinania brephocephala | 154776 | DD | |
| Taxus cuspidata var. nana | Dwarf Yew | 191658 | DD |
| Oxynotus japonicus | Japanese Roughshark | 44206 | DD |
| Apristurus fedorovi | Stout Catshark | 44210 | DD |
| Trigonognathus kabeyai | Viper Dogfish | 44205 | DD |
| Apristurus macrorhynchus | Flathead Catshark | 44218 | DD |
| Opisthoteuthis japonica | 163003 | DD | |
| Abralia robsoni | 163024 | DD | |
| Gymnothorax sagmacephalus | 195795 | DD | |
| Octopus hattai | 163031 | DD | |
| Rhodeus atremius ssp. suigensis | Suigen Zenitanago | 19672 | DD |
| Malus tschonoskii | Pillar Apple | 50390234 | DD |
| Abdopus abaculus | 163036 | DD | |
| Opisthoteuthis depressa | 163054 | DD | |
| Zesticelus bathybius | 154858 | DD | |
| Ponerorchis curtipes | 22486264 | DD | |
| Bathymaster derjugini | 154884 | DD | |
| Halophila euphlebia | Species code: Hf | 173325 | DD |
| Helodrilus hachiojii | 117374223 | DD | |
| Octopus parvus | 163091 | DD | |
| Xyrichtys sciistius | 187686 | DD | |
| Scaergus patagiatus | 163130 | DD | |
| Acreichthys hajam | 154965 | DD | |
| Amynthas tappensis | 118818144 | DD | |
| Amynthas ambiguus | 117374319 | DD | |
| Geloina luchuana | 189807 | DD | |
| Octopus mutilans | 163201 | DD | |
| Amphioctopus ovulum | 163209 | DD | |
| Muusoctopus hokkaidensis | 163217 | DD | |
| Magnolia kobus | Kobushi Magnolia | 193954 | DD |
| Zoarchias neglectus | 155048 | DD | |
| Betula dahurica var. okuboi | 51207600 | DD | |
| Eumicrotremus barbatus | Papillose Lumpsucker | 155082 | DD |
| Gonatopsis japonicus | 163305 | DD | |
| Promachoteuthis megaptera | 163309 | DD | |
| Paramyxine atami | 196079 | DD | |
| Lycodes sadoensis | 155122 | DD | |
| Paramyxine moki | 196083 | DD | |
| Paramyxine walkeri | 196088 | DD | |
| Syngnathus chihiroe | 112664063 | DD | |
| Chirolophis snyderi | Bearded Warbonnet | 155155 | DD |
| Miroscyllium sheikoi | Rasptooth Dogfish | 44564 | DD |
| Onychoteuthis compacta | 163348 | DD | |
| Amynthas yamizoyamensis | 118828576 | DD | |
| Crassinarke dormitor | Sleeper Torpedo | 161326 | DD |
| Paludinella minima | 15928 | DD | |
| Dipturus tengu | Acutenose Skate | 161354 | DD |
| Opisthoteuthis albatrossi | 163404 | DD | |
| Clinostigma savoryana | Arrack Tree | 38477 | DD |
| Muusoctopus abruptus | 163407 | DD | |
| Muusoctopus profundorum | 163406 | DD | |
| Zameus ichiharai | Japanese Velvet Dogfish | 161363 | DD |
| Apristurus japonicus | Japanese Catshark | 161367 | DD |
| Hemitriakis complicofasciata | Ocellate Topeshark | 161368 | DD |
| Amamiku occulta | 134757 | DD | |
| Somniosus pacificus | Pacific Sleeper Shark | 161403 | DD |
| Scyliorhinus tokubee | Izu Catshark | 161412 | DD |
| Caridina macrodentata | 198279 | DD | |
| Camptoceras hirasei | 3720 | DD | |
| Culmenella rezvoji | 3721 | DD | |
| Amynthas nonsilvestris | 118838925 | DD | |
| Bathyraja matsubarai | Dusky Purple Skate | 161424 | DD |
| Squalus japonicus | Japanese Spurdog | 161433 | DD |
| Pungitius tymensis | Short-spined Ninespine Stickleback | 19922589 | DD |
| Geothelphusa marmorata | 134814 | DD | |
| Amynthas nonsetosus | 118838943 | DD | |
| Etmopterus splendidus | Splendid Lanternshark | 161448 | DD |
| Amynthas nonmonticolus | 118838959 | DD | |
| Amynthas nonmontanus | 118838971 | DD | |
| Galeus longirostris | Longnose Sawtail Catshark | 161473 | DD |
| Amynthas noninvisus | 118838980 | DD | |
| Alnus serrulatoides | 194248 | DD | |
| Centroscyllium ritteri | Whitefin Dogfish | 161508 | DD |
| Paraegista apoiensis | 16107 | DD | |
| Metaphire hataii | 118832878 | DD | |
| Oligolepis stomias | Plain Teardrop Goby | 196338 | DD |
| Parioglossus lineatus | 196341 | DD | |
| Somniosus longus | Frog Shark | 161552 | DD |
| Galeus nipponensis | Broadfin Sawtail Catshark | 161567 | DD |
| Satakentia liukiuensis | 38695 | DD | |
| Conus scopulicola | 192309 | DD | |
| Conus miniexcelsus | 192313 | DD | |
| Bathyraja violacea | Okhotsk Skate | 161594 | DD |
| Madracis asanoi | 132926 | DD | |
| Cerasus nipponica | Kurile cherry | 50028357 | DD |
| Acropora tanegashimensis | 132934 | DD | |
| Drawida keikiensis | 117370694 | DD | |
| Hippocampus coronatus | Crowned Seahorse | 10065 | DD |
| Cyathopoma nishinoi | 6002 | DD | |
| Conus habui | 192376 | DD | |
| Conus gratacapii | 192387 | DD | |
| Conus ikedai | 192398 | DD | |
| Cephaloscyllium umbratile | Japanese Swellshark | 161724 | DD |
| Hirasea biconcava | 10176 | DD | |
| Hirasea eutheca | 10177 | DD | |
| Apostichopus multidentis | 19711938 | DD | |
| Hirasea goniobasis | 10178 | DD | |
| Hirasea hypolia | 10179 | DD | |
| Conus hamamotoi | 192454 | DD | |
| Hirasea major | 10180 | DD | |
| Hirasea mirabilis | 10184 | DD | |
| Dipturus macrocauda | Bigtail Skate | 161738 | DD |
| Hirasea nesiotica | 10181 | DD | |
| Centroscyllium excelsum | Highfin Dogfish | 161740 | DD |
| Hirasea profundispira | 10185 | DD | |
| Hirasea sinuosa | 10183 | DD | |
| Hirasiella clara | 10186 | DD | |
| Histioteuthis inermis | 176076 | DD | |
| Parioglossus caeruleolineatus | 69130199 | DD | |
| Lampanyctus bensoni | 129302496 | DD | |
| Conus pauperculus | 192483 | DD | |
| Euhadra murayamai | 8181 | DD | |
| Euhadra nachicola | 8182 | DD | |
| Euhadra sadoensis | 8183 | DD | |
| Euhadra scaevola ssp. mikawa | 8184 | DD | |
| Metanephrops sagamiensis | Sculpted Lobster | 169971 | DD |
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Species are classified by the IUCN Red List into nine groups: