• Bougainvillia macloviana
• Bougainvillia muscoides
• Bougainvillia muscus
• Bougainvillia principis
• Bougainvillia pyramidata
• Bougainvillia superciliaris
• Brachioteuthis riisei
• Brachydiastylis resima
• Branchiostoma lanceolatum
• Brusinia elongatum Hime-botan-gazami
  
• Bythocaris simplicirostris
• Bythotiara murrayi
• Calappa bicornis Futakobu-calappa
  
• Calappa calappa Marusode-calappa
  
• Calappa capellonis Hirakobu-calappa
  
• Calappa clypeata Hime-calappa
  
• Calappa gallus Kobu-calappa
  
• Calappa hepatica Hepatic box crab
  Sode-calappa
  
• Calappa japonica Yamato-calappa
  
• Calappa lophos Torafu-calappa
  
• Calappa matsuzawa Muroto-calappa
  
• Calappa philargius Megane-calappa
  
• Calappa pustulosa Marumi-calappa
  
• Calappa yamasitae Yamashita-calappa
  
• Callinectes sapidus Blue crab
  Midorigani
  
• Calmania balssi Balss-gani
  
• Calmania dahli Ralum-gani
  
• Calmania prima Calman-gani
  
• Calmania simodaensis Shimoda-calman-gani
  
• Calocarcinus lewinsohni Niijima-sangogani
  
• Calvactaea tumida Marutama-ohgigani
  
• Camatopsis rubida Camatogani
  
• Camposcia retusa Decorator crab
  Mokuzutshoi
  
• Camptandrium sexdentatum Mutsuha-áriake-gani
  
• Camptandrium sp Mutsuha-áriake-gani sp.
  
• Campylaspis costata
• Campylaspis glabra
• Campylaspis horrida
• Campylaspis rubicunda
• Campylaspis sulcata
• Campylaspis verrucosa
• Cancer amphioetus Ko-ícho-gani
  
• Cancer gibbosulus Ibo-ícho-gani
  
• Cancer japonicus Icho-gani
  
• Cancer magister Dungeness crab
  America-ícho-gani
  
• Cancer nadaensis Nada-ícho-gani
  
• Cancer tumifrons Hiroha-ícho-gani
  
• Candidiopotamon amamense Amami-minami-sawagani
  
• Candidiopotamon kumejimense Kumejima-minami-sawagani
  
• Candidiopotamon okinawense Okinawa-minami-sawagani