Crayfish - mouthparts
Crayfish - external (ventral view)
Decapoda - crayfish
Crayfish - external (dorsal front view)
Crayfish - external (dorsal)

Crafish - internal (dorsal front view w/ green glands

Crayfish - internal (dorsal front view)
Crayfish- internal (dorsal back view)
Crayfish - gonopods