(person) slippery as an eel
giant catfish (mythological being thought to cause earthquakes)
electric catfish (any species of family Malapteruridae, esp. species Malapterurus electricus)
electric catfish (any species of family Malapteruridae, esp. species Malapterurus electricus)
woodblock print depicting a giant catfish (popular in Edo after the 1855 earthquake)
upside-down catfish (Synodontis nigriventris)
Lake Biwa catfish (Silurus biwaensis)
woodblock print depicting a giant catfish (popular in Edo after the 1855 earthquake)
Wels catfish (Silurus glanis)