• Pinnotheres taichungae Taiwan-pinno
  
• Pinnotheres tsingtaoensis Tsingtao-pinno
  
• Pinnotheres villosulus Timor-pinno
  
• Pisoides bidentatus Oh-togari-gani
  
• Pisoides ortmanni Togari-gani
  
• Plagiostomum vittatum
• Plagusia chabrus Cape rock crab
  Linnaeus-syojin-gani
  
• Plagusia dentipes Syojin-gani
  
• Plagusia speciosa Dana-syojin-gani
  
• Plagusia tuberculata Depressed red rock crab
  Ibo-syojin-gani
  
• Planes cyaneus Okinagare-gani
  
• Planocera pellucida
• Planopilumnus minabensis Minabe-kebukagani
  
• Planopilumnus pygmaeus Bonin-kebukagani
  
• Planopilumnus vermiculatus Meiro-kebukagani
  
• Platepistoma anaglyptum Noh-ícho-gani
  
• Platyeriocheir formosa Chan-mokuzugani
  
• Platymaia aff wyvillethomsoni Hiraáshi-kumogani-modoki
  
• Platymaia bartschi Oh-hiraáshi-kumogani
  
• Platymaia fimbriata Tsuno-hiraáshi-kumogani
  
• Platymaia remifera Albatross-hiraáshi-kumogani
  
• Platymaia wyvillethomsoni Hiraáshi-kumogani
  
• Platynereis dumerilii
• Platypilumnus soelae Hira-kebuka-ohgi
  
• Platypodia anaglypta Hiraáshi-ohgigani
  
• Platypodia granulosa Tsubu-hiraáshi-ohgigani
  
• Platypodia semigranosa Hime-hiraáshi-ohgigani
  
• Platypodia tomentosa Deman-hiraáshi-ohgigani
  
• Platysquilla eusebia
• Pleistacantha cervicornis Toge-harisenbon
  
• Pleistacantha japonica Yokoya-harisenbon
  
• Pleistacantha oryx Tsuno-harisenbon
  
• Pleistacantha sanctijohannis Harisenbon
  
• Pleistacantha simplex Hime-harisenbon
  
• Pleurobrachia pileus
• Pneumodermopsis ciliata
• Pneumodermopsis paucidens
• Podocatactes hamifer Toge-higegani
  
• Podocoryne areolata
• Podocoryne borealis
• Podocoryne carnea
• Podon intermedius
• Podon leuckartii
• Podon polyphemoides
• Podophthalmus minabensis Kougai-menaga-gazami
  
• Podophthalmus nacreus Hime-menaga-gazami
  
• Podophthalmus vigil Long-eyed swimming crab
  Menaga-gazami
  
• Polybius henslowii
• Polydectus cupulifer Kebuka-kinchaku-gani
  
• Polydora hermaphroditica