蛄 - mole cricket, cicada

crayfish (esp. the Japanese crayfish or red swamp crayfish); crawfish

mole cricket (esp. the Oriental mole cricket, Gryllotalpa orientalis)

red swamp crayfish (Procambarus clarkii)

mantis shrimp (any marine crustacean of order Stomatopoda, esp. the species Oratosquilla oratoria); mantis crab; squilla

caddisfly; caddis fly (any moth-like insect of the order Trichoptera)

being a jack of all trades and master of none

Christmas cactus (Schlumbergera truncata); crab cactus

being a jack of all trades and master of none

stonefly (any insect of order Plecoptera, esp. those of family Perlidae)

Japanese mud shrimp (Upogebia major)