xvii. P. megacephalus, Baird, found embedded in the flesh of the head of an Indian crocodile, C. palustris, the “Mugger.” Probably a larval form.
xviii. P. megastomus, Diesing, found in the lungs of a fresh-water tortoise, Hydraspis geoffroyana.
xix. P. moniliformis, Diesing, found in the lungs of pythons.
xx. P. najae sputatricis, Leuckart, found encapsuled in the abdominal muscles and peritoneum of the cobra, Naja tripudians. Probably a larval form.
xxi. P. oxycephalus, Diesing, found in the lungs of crocodiles and alligators.
xxii. P. platycephalus, Lohrmann, habitat unknown.
xxiii. P. subuliferus, Leuckart, in the lungs of the cobra Naja haje.
xxiv. P. teretiusculus, Baird, found in the lungs and mouth of certain Australian snakes.
xxv. P. tortus, Shipley, found in the body-cavity of a snake, Dipsadomorphus irregularis, taken in New Britain.
xxvi. Reighardia, sp., Ward, found in the air-sacs of Bonaparte’s gull and the common North American tern.