Commonly known as river crab or crawfish. The tincture is prepared from the whole animal. It marked affects the liver and lymphatic glands. It produces URTICARIA; with liver complaints; jaundice of children. Itching in various parts. Crusta lactea, with enlarged lymphatic glands. Enlarged glands of neck in children and old people. Stinging pains are felt in various parts. Inward chilliness or shiverings. Nervous crawls over the body. Erysipelas, with nettlerash. Cramps in liver region, liver inflamed t pressure. Cough better when walking but returns as soon as he sits down. Violent fever, with headache; red glowing face. It constricts and may completely close both the duodenum and esp. the opening of the gall duct into the duodenum.