SYSTEMATIC 497 



xvii. P. merjace'phalus, Baird, found embedded in the flesh of the liead of an 

 Indian crocodile, C. palustris, the " JNIngger." 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 enca^jsuled in the abdominal 

 muscles and peritoneum of the cobra, JVaja trifudians. Probably a 

 larval form, 

 xxi. P. oxyceplialus, Diesing, found in the lungs of crocodiles and 



alligators, 

 xxii. P. platycephalus, Lohrinann, 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, Dipsadomorphns 



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 



