. Animal parasites and human disease. Parasites; Medical parasitology; Insects as carriers of disease. 222 THE FLUKES species of crabs in Formosa, and Yoshida, another Japanese in- vestigator, acting on the discovery of his countryman, found the larvae in a fourth species of crab in Japan. The crabs most com- monly infected are Potamon obtusipes, a coarse-shelled, chestnut- colored crab about one and a half inches in diameter, and P. dehaanii, a slightly smaller species, grayish black or red- dish in color. Both these crabs bound in the shallow waters of mountain streams, and the former specie
. Animal parasites and human disease. Parasites; Medical parasitology; Insects as carriers of disease. 222 THE FLUKES species of crabs in Formosa, and Yoshida, another Japanese in- vestigator, acting on the discovery of his countryman, found the larvae in a fourth species of crab in Japan. The crabs most com- monly infected are Potamon obtusipes, a coarse-shelled, chestnut- colored crab about one and a half inches in diameter, and P. dehaanii, a slightly smaller species, grayish black or red- dish in color. Both these crabs bound in the shallow waters of mountain streams, and the former species is sometimes used as food. An- other implicated species, Eriocheir japonicus (Fig. 72), is abundant in all plains rivers in Japan and is a common article of diet throughout the country. It is a larger crab, reaching a diameter ^of three inches, and has large hairy claws. The fourth species, Sesarma dehaani, is of medium size, dark in color with light reddish claws, and inedible. Miyairi has shown that in Korea another crab, Astacus japonicus, is the intermediate host. The lung fluke cercarise encysted in these crabs (Fig. 73A) were found chiefly in the liver while young, but when older they. Fig. 72. A common fresh-water crab of Japan, Eriocheir japonicus, which serves as a host for lung fluke. (After Yoshida.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Chandler, Asa C. (Asa Crawford), 1891-1958. New York, J. Wiley
Size: 1927px × 1297px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1922
