vii. P. armillatus, Wyman, found in the adult state in the lungs of certain African pythons, and in the lion; in the larval form it occurs encysted in the abdomen of the Aard-wolf, the mandril, and man—usually in negroes. Its migrations in the body of its second host sometimes cause fatal results.
viii. P. bifurcatus, Diesing, found in the body-cavity of certain snakes, and in the lungs of boa-constrictors and the legless lizard, Amphisbaena alba. Possibly an immature form.
ix. P. clavatus, Lohrmann, found in the lungs of the Monitor lizard.
x. P. crocidura, Parona, found in the peritoneum of the “musk-rat” Crocidura in Burmah. Probably a larval form.
xi. P. crotali, Humboldt, found in the lungs, body-cavity, kidneys, spleen, and mesentery of many snakes and lizards, and of the lion and leopard. The immature forms occur in the liver and abdominal cavity of species of opossum, armadillo, mouse, raccoon, bat, and marmoset.
xii. P. geckonis, Dujardin, found in the lungs of a Siamese gecko.
xiii. P. gracilis, Diesing, found free in the body-cavity or encapsuled on the viscera and mesenteries of South American fishes, snakes, and lizards,
xiv. P. heterodontis; Leuckart, found encapsuled in the abdominal muscles and mesentery of a species of Heterodon.
xv. P. indicus,[[392]] v. Linst., found in the trachea and lungs of Gavialis gangeticus.
xvi. P. lari, Mégnin, found in the air-sacs of the Burgomaster or Glaucous gull, Larus glaucus of the Polar seas.