• Gonatus fabricii
• Gonatus steenstrupi
• Goneplax nipponensis Yamato-medakagani
  
• Goneplax renoculis Medakagani
  
• Gonioinfradens paucidentata Yotsuha-íshigani
  
• Gonionemus vertens
• Gorgonariana sodalis Mure-ohgigani
  
• Gossea corynetes
• Grapsus albolineatus Minami-íwagani
  
• Grapsus intermedius Deman-ohíwagani
  
• Grapsus longitarsis Sunenaga-íwagani
  
• Grapsus tenuicrustatus Ohíwagani
  
• Grypachaeus tenuicollis Sakishima-ákeus
  
• Halicarcinus coralicola Tsunodashi-yawaragani
  
• Halicarcinus hondai Amami-yawaragani
  
• Halicarcinus messor Yawaragani
  
• Halicarcinus orientalis Toyo-yawaragani
  
• Halicarcinus setirostris Ashiboso-yawaragani
  
• Halimede fragifer Gokaku-ibo-ohgigani
  
• Halimede tyche Gokaku-íbo-ohgigani-modoki
  
• Haliphron atlanticus
• Halitholus yoldiaarcticae
• Halocypria globosa
• Halocypris inflata
• Halopsis ocellata
• Hapalocarcinus marsupialis Sango-yadori-gani
  
• Harrovia albolineata Borneo-komachigani
  
• Harrovia elegans Merugui-komachigani
  
• Harrovia japonica Komachigani
  
• Harrovia truncata Hiraáshi-komachigani
  
• Heikea arachnoides Seto-heikegani
  
• Heikea japonica Heikegani
  
• Helgicirrha schulzei
• Helicana japonica Nihon-ashihara-gani
  
• Helicana wuana Hime-ashihara-gani
  
• Helice formosensis Taiwan-ashihara-gani
  
• Helice latimera Rathbun-ashihara-gani
  
• Helice subquadrata Minami-ashihara-gani
  
• Helice tientsinensis Tenshin-ashihara-gani
  
• Helice tridens Ashihara-gani
  
• Hemigrapsus longitarsis Sunenaga-ísogani
  
• Hemigrapsus penicillatus Kefusa-ísogani
  
• Hemigrapsus sanguineus Isogani
  
• Hemigrapsus sinensis Hime-kefusa-ísogani
  
• Hemilamprops rosea
• Hemimysis abyssicola
• Hemimysis lamornae
• Hepatoporus distinctus Kushimoto-horagani
  
• Hepatoporus orientalis Horagani
  
• Hephthopelta aurita Nekogani