PARASITIC NEMATODES FROM CHINA By Benjamin Schwartz Of the Zoological Division, Bureau of Animal Industry, United States Department of Agriculture The following report is based largely ou a collection of parasitic nematodes submitted for identification to the Zoological Division of the Bureau of Animal Industry by Dr. E. C. Faust of the Peking Union Medical College, Peking, China. In addition to the records based on the specimens submitted by Doctor Faust, many of which are new to China, two records based on China material in the Helminthological Collections of the U. S. National Museum as well as a number of records published by other investigators are included in this paper. Heretofore our knowledge concerning parasitic nematodes from China has been largely limited to forms occurring in man, the para-sitic nematode fauna of wild and domesticated animals having been practically unknown. The list of species given in the following pages contain not only many new records, but also represents an attempt to systematize our knowledge of these parasites from China. Siiperfamily ASCAROIDEA Railliet and Henry, 1915 Family ASCARIDAE Cobbold, 1864 Genus ASCARIS Linnaeus, 1758 ASCARIS LUMBRICOIDES Linnaeus, 1758 Several immature specimens from the intestine of swine, collected in Peking in 1920 (No. 26403 U.S.N.M.:'. This species has been reported from man and from swine in various parts of China, Max-well (1921) lists Ascaris suilla ( = Ascaris lumhricoides) from Canis familiaris in China, this being the second report of the occurrence of this species in dogs, the first report being that of Leiper (1913) and the most recent record that has come to light being that of Ando^ and Asai, published in 1924 and reviewed recently (1925; in the Japan Medical World. These writers say that three dogs out of one hundred that were examined showed human Ai^caris eggs in the feces. No. 2614.— Proceedings U. S. National Museum. Vol. 68, Art. 13 60729— 26t 1 1
BioStor
