Nephridiopores in crayfish are part of their excretory system (for removing nitrogenous waste); crayfish propel water from the rear to the front and out the nephridiopores.
It is analogous to how humans have to expend their liquid waste.
The nephridiopore is an external opening of a nephridium, which is a tubular excretory organ in some invertebrates that removes metabolic wastes. The anus is an opening at the end of the digestive system through which waste materials are eliminated from the body. Therefore, the nephridiopore is specifically for excretion, while the anus is for the elimination of feces.
Actually the correct spelling is: nephridiopore - it is part of the excretory system of flatworms
Crayfish
Crayfish are known as both crayfish and yabbies in Australia. "Yabbies" are freshwater crayfish, often found in rivers, creeks and dams in rural areas.
My older crayfish died and my littler crayfish has not yet how do/can they die?
Do crayfish have tarritoris
Crayfish are omnivores.
protects the crayfish
Crayfish are related to small lobsters. Here is a link for pictures of crayfish. http://mackers.com/crayfish/pics.htm
Crayfish are invertebrates.
Crayfish-ess.
the crayfish resembles a lobster