The fish affected sometimes recover. The treatment consists in draining the pond, supplying fresh 

 water, and feeding the smallest crustaceans in abundance. (3) "Kuchigusari." Fish in the hatching 

 ponds sometimes develop a destructive inflammation of the snout, which sloughs off; the caudal and 

 other tins also are destroyed. The cause is not known, and no cure has been found. (4) "Memuki." 

 The principal symptom is a bulging of the eyeballs in fish a year or more old. The disease occurs mostly 

 in April. May, September and October, and may be due to improper food or to failure to guard against 

 marked temperature changes. The fish die if left alone, but may be cured by careful attention to the 

 water and food. (5) "Chirosobu" and "Kurosobu." These diseases are characterized by white and 

 black spots, respectively, on the body, and may be of a fungous or protozoan nature. The skin loses its 

 luster and looks like Japanese paper. From one spot the affections may spread widely. They are 

 thought to be due to lowered vitality owing to deficiency of food, and may be cured by proper feeding. 

 (6) "Chinchiri." This name is given to a disease marked by swellings over which the scales project 

 prominently; the swellings are soft and ultimately discharge a yellow fluid. Fish three or four years 

 old are most frequently affected. The trouble is ascribed to a sporozoan, and is thought to be incur- 

 able. (7) "Pest." A malady called the pest by goldfish breeders sometimes carries off many year-old 

 fish. Black spots appear on body and fins, and there is much wasting of the muscles of the back. 

 The nature of the disease is not known, but it is probably either bacterial or protozoan, and is highly 

 infectious. On one occasion a pond in which the pest existed overflowed into a pond containing healthy 

 fish, with the result that the next afternoon those ponds were badly affected. (8) Swollen air- 

 bladder. This trouble, which is not common, occurs in older fish and particularly in those living in 

 deep ponds. The air-bladder being abnormally distended, the fish lose control over their movements 

 and equilibrium, and float at the surface with the tail or belly upward. 



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