| Subject | English | Portuguese |
| nat.res. | Alaska deepsea crab | caranguejo-real (Paralithodes camtschatica) |
| life.sc., fish.farm. | Atlantic rock crab | sapateira-de-rocha-do-Atlântico (Cancer irroratus) |
| nat.res., fish.farm. | Atlantic rock crab | sapateira de rocha do Atlântico (Cancer irroratus) |
| nat.sc., agric. | Atlantic rock crab | sapateira-de-rocha-do-atlântico (Cancer irroratus (Say)) |
| nat.sc., agric. | black stone crab | caranguejo-negro-da-pedra (Menippe mercenaria) |
| nat.res. | blue crab | navalheira azul (Callinectes sapidus) |
| fish.farm. | blue crab | navalheira-azul (Callinectes sapidus) |
| nat.sc., agric. | blue crab | navalheira-azul (Callinectes sapidus(Rathbun,1896)) |
| life.sc., environ., fish.farm. | Chinese crab | caranguejo chinês (Eriocheir sinensis) |
| gen. | circular crab runway girder | monocarril |
| gen. | circular crab runway girder | carril circular de guincho |
| nat.res. | common shore crab | caranguejo (Carcinus maenas (Linnaeus,1758)) |
| nat.res. | common shore crab | cangrexo (Carcinus maenas (Linnaeus,1758)) |
| fish.farm. | common shore crab | caranguejo verde (Carcinus maenas, carcinus mediterraneus) |
| nat.res. | common shore crab | caranguejo-verde (Carcinus maenas) |
| nat.res. | common shore crab | cangrejo-verde (Carcinus maenas (Linnaeus,1758)) |
| met. | core crab | armadura |
| transp. | crab angle | ângulo de deriva |
| fish.farm. | crab cakes | bolos de carenguejos |
| mech.eng. | crab drive rack | cremalheira para comando do guindaste |
| mech.eng. | crab drive unit | unidade de comando do guindaste |
| environ., nat.res. | crab-eating dog | cachorro-do-mato (Cerdocyon thous) |
| environ., nat.res. | crab-eating fox | cachorro-do-mato (Cerdocyon thous) |
| environ., nat.res. | crab-eating zorro | cachorro-do-mato (Cerdocyon thous) |
| agric. | crab frozen in sections | caranguejo congelado em secções |
| agric. | crab meal | farinha de crustáceos |
| fish.farm. | crab meat | carne de caranguejo |
| nat.res. | crab plover | caranguejeiro (Dromas ardeola) |
| agric. | crab processed at sea | caranguejo transformado no mar |
| astronaut. | Crab Pulsar | pulsar da nebulosa de Crab |
| el. | crab rail | carril da ponte |
| nat.sc., agric. | crab's-eye vine | fruta-conteira (Abrus precatorius L.) |
| nat.sc., agric. | crab's-eye vine | fruta-de-conta (Abrus precatorius L.) |
| nat.sc., agric. | crab's-eye vine | jequiriti (Abrus precatorius L.) |
| nat.sc., agric. | crab's-eye vine | tento (Abrus precatorius L.) |
| fish.farm. | crab sticks | cilindros de surini |
| relig. | Crab/the | Caranguejo (Cancer) |
| mech.eng. | crab transmission system | sistema de transmissão do guindaste |
| mech.eng. | crab traversing motion | deslocamento lateral do guindaste |
| tech., industr., construct. | crabbing machine | máquina de pré-fixação da lã |
| industr., construct. | crabbing machine | máquina de fixar por fervura |
| tech., industr., construct. | crabbing machine | máquina de fixar a lã por fervura |
| life.sc., fish.farm. | deep-sea crabs | caranguejos-da-fundura (Geryonidae) |
| life.sc., fish.farm. | deep-water red crab | caranguejo-real-da-fundura (Chaceon affinis) |
| life.sc., fish.farm. | Dungeness crab | sapateira do Pacífico (Cancer magister) |
| fish.farm. | dungeness crab | sapateiza do pacíifico (Cancer magister) |
| nat.sc., agric. | Dungeness crab | sapateira-do-pacífico (Cancer magister (Dana)) |
| fish.farm. | edible crab | sapateira (Cancer pagurus) |
| nat.res., fish.farm. | edible crab | sapateira (Cancer pagurus) |
| nat.res. | fiddler crab | caranguejo violinista (Uca tangeri) |
| nat.res. | fiddler crab | cava-terra (Uca tangeri) |
| nat.res. | fiddler crab | cavalete (Uca tangeri) |
| nat.res. | fiddler crab | boca (Uca tangeri) |
| nat.sc., agric. | gazami crab | navalheira-gazami (Portunus trituberculatus) |
| nat.res. | green crab | caranguejo (Carcinus maenas (Linnaeus,1758)) |
| nat.res. | green crab | cangrejo-verde (Carcinus maenas (Linnaeus,1758)) |
| nat.res. | green crab | cangrexo (Carcinus maenas (Linnaeus,1758)) |
| nat.res. | green crab | caranguejo-verde (Carcinus maenas) |
| nat.res. | green crab | caranguejo verde (Carcinus maenas) |
| nat.res. | green shore crab | cangrejo-verde (Carcinus maenas (Linnaeus,1758)) |
| nat.res. | green shore crab | cangrexo (Carcinus maenas (Linnaeus,1758)) |
| nat.res. | green shore crab | caranguejo-verde (Carcinus maenas) |
| nat.res. | green shore crab | caranguejo (Carcinus maenas (Linnaeus,1758)) |
| nat.sc., agric. | hermit crabs | eremitas (Paguridae) |
| nat.sc., agric. | hermit crabs | casas-alugadas (Paguridae) |
| nat.res. | horseshoe crab | límulo (Limulus polyphemus) |
| nat.res. | horseshoe crab | limulo (Limulus spp) |
| nat.res. | Japanese crab | caranguejo-real (Paralithodes camtschatica) |
| nat.res., fish.farm. | Jonah crab | sapateira boreal (Cancer borealis) |
| nat.sc., agric. | Jonah crab | sapateira-boreal (Cancer borealis) |
| nat.res. | Jonah crabs | sapateiras (Cancridae) |
| nat.res. | king crab | caranguejo-real (Paralithodes camtschatica) |
| fish.farm. | king crab | caranguejo-real (Paralithodes camchatica) |
| life.sc., fish.farm. | king crab | caranguejo real (Lithodes ferox) |
| life.sc., fish.farm. | king crabs | caranguejos reais (Lithodidae) |
| nat.sc., agric. | king crabs | caranguejos-reais (Paralithodes) |
| nat.res. | land-crab | caranguejo terrestre |
| nat.res., fish.farm. | marine crabs | caranguejos do mar (Reptantia) |
| nat.sc., agric. | marine crabs | caranguejos-do-mar (Reptantia) |
| nat.res. | Mediterranean green crab | caranguejo-verde-do-mediterrâneo (Carcinus aestuarii (Nardo), Carcinus mediterraneus) |
| nat.res. | Mediterranean shore crab | caranguejo verde do Mediterrâneo (Carcinus aestuaria) |
| life.sc., fish.farm. | Mediterranean shore crab | caranguejo-verde-do-mediterrâneo (Carcinus aestuarii, Carcinus mediterraneus) |
| fish.farm. | mitten crab | caranguejo-chinês (Eriocheir sinensis) |
| life.sc., environ., fish.farm. | mitten crab | caranguejo chinês (Eriocheir sinensis) |
| nat.res. | mud crab | caranguejo-da-lama (Scylla serrata) |
| nat.res. | mud crab | caranguejo da lama (Scylla serrata) |
| nat.sc., agric. | Murray king crab | caranguejo-real-de-murray (Lithodes murrayi) |
| life.sc., fish.farm. | ox crab | sapateira (Cancer pagurus) |
| nat.sc., agric. | Pacific rock crab | sapateira-de-rocha-do-pacífico (Cancer productus) |
| fish.farm. | Pacific snow crabs | caranguejos-das-neves-do-pacífico (Chionoecetes spp.) |
| life.sc., fish.farm. | queen crab | caranguejo-das-neves-do-ártico (Chionoecetes opilio) |
| nat.res., fish.farm. | queen crab | caranguejo das neves (Chionoecetes opilio) |
| nat.sc., agric. | queen crab | caranguejo-das-neves (Chionoecetes opilio (Fabricius,1788)) |
| life.sc., nat.res., fish.farm. | red crab | caranguejo-vermelho-de-profundidade (Chaceon maritae, Geryon maritae) |
| nat.sc., agric. | red crab | caranguejo-vermelho-da-fundura (Geryon quinquedens) |
| nat.sc., agric. | red crabs | caranguejos-da-fundura (Geryon) |
| life.sc., fish.farm. | red deepsea crab | caranguejo-vermelho-da-fundura (Chaceon quinquedens, Geryon quinquedens) |
| nat.res. | rock crabs | sapateiras (Cancridae) |
| life.sc., fish.farm. | snow crab | caranguejo-das-neves-do-ártico (Chionoecetes opilio) |
| fish.farm. | snow crabs | caranguejos-das-neves-do-pacífico (Chionoecetes spp.) |
| life.sc., fish.farm. | softshell red crab | caranguejo-vermelho-de-casca-mole (Paralomis granulosa) |
| nat.sc., agric. | Southern king crab | caranguejo-real-do-sul (Lithodes antarcticus, Lithodes santolla (Molina)) |
| fish.farm. | Southern spider crab | santola-do-sul (Jacquinotia edwardsii) |
| fish.farm. | spider crab | santola (Maja squinado) |
| fish.farm. | spider crab | santola-europeia (Maja squinado (Herbst,1788)) |
| fish.farm. | spinous spider crab | santola-europeia (Maja squinado (Herbst,1788)) |
| fish.farm. | spinous spider crab | santola (Maja squinado) |
| fish.farm. | spinous spider crab | santola (Jacquinotia edwardsii, Maia squinado) |
| fish.farm. | spiny crab | santola (Maja squinado) |
| fish.farm. | spiny crab | santola-europeia (Maja squinado (Herbst,1788)) |
| nat.res., fish.farm. | stone king crab | caranguejo real das pedras (Lithodes maia) |
| nat.sc., agric. | stone king crab | caranguejo-real-da-pedra (Lithodes maja (Linnaeus)) |
| nat.sc., agric. | Subantarctic stone crab | caranguejo-real-de-murray (Lithodes murrayi) |
| nat.res., fish.farm. | swimming crab | pilado (Polybius henslowi) |
| fish.farm. | swimming crab | navalheira-felpuda (Ovalipes catharus, Portunus puber, liocarcinus puber) |
| life.sc., fish.farm. | swimming crab | navalheira felpuda (Necora puber, Liocarcinus puber, Macropipus puber) |
| nat.res., fish.farm. | swimming crabs | navalheiras (Portunidae, Portunus spp.) |
| life.sc., fish.farm. | Tanner crabs | caranguejo-das-neves (Chionoecetes spp.) |
| life.sc., fish.farm. | velvet swimming-crab | navalheira felpuda (Necora puber, Liocarcinus puber, Macropipus puber) |
| nat.sc., agric. | velvet swimming-crab | navalheira-felpuda (Liocarcinus puber, Macropipus puber, Necora puber (Linnaeus,1767), Portunus puber) |
| nat.res. | violin crab | caranguejo-violino |
