barnacle

marine crustacean that attaches itself to submerged surfaces

Grasshopper

An insect with hind legs adapted for leaping

kangaroo

An upright herbivorous marsupial that moves by jumping, or the Klingon equivalent

shrimp

decapod crustaceans with elongated bodies and a primarily swimming mode of locomotion

rodent

creature familiar to Klingons, resembling a mouse, rat, hamster etc. What a {vIghro'} would chase after

starfish

An echinoderm with a star-shaped body, able to evert its stomach, usually has five arms/legs

crab

A decapod crustacean with pincers and a stub for a tail