Cryptolithodes
Cryptolithodes is a genus of king crabs, containing the following three species:
| Image | Scientific name | Common name | Distribution |
| Cryptolithodes expansus Miers, 1879 | メンコガニ | Japan, Korean coast, British Columbia | |
| Cryptolithodes sitchensis Brandt, 1853 | Umbrella crab | Northeastern Pacific Ocean | |
| Cryptolithodes typicus Brandt, 1848 | Butterfly crab, turtle crab | Northeastern Pacific Ocean |