SYSTEMATIC 497 



xvii. P. megacephalus, Baird, found embedded in the flesli of the head of an 



Indian crocodile, C. palustris, the " INIugger." Probably a larval 



form, 

 xviii. P. megastomus, Diesing, found in the lungs of a fresh -water tortoise, 



Hydraspis geoffroyana. 

 xix. P. moniliformis, Diesing, foiuid 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. oxycephaliis, Diesing, found in the lungs of crocodiles and 



alligators. 

 xxii. P. platycephaltLS, Lohrmann, habitat unknown, 

 xxiii. P. subulifei'us, 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. 



VOL. IV 2 K 



