248 S. J. JOHNSTON. 



Himasthla liarrisoni, sp. n. from Numenius cyanopus is 

 closely related to H. rhigedana, Dtz., parasitic in two 

 species of Numenius that inhabit the Sinai peninsula on 

 the Red Sea. 



Acanthoparypliium spinulosum, sp. n. from the duodenum 

 of Charadrius dominicus seems to be most closely related 

 to A. phcenicopteri, Lhe., parasitic in the African Phoeni- 

 copterus roseus. 



Echinoparyphium oxyurum and E. harveyanum found in 

 Herodias timoriensis and Micraeca fascinans respectively 

 are related to E. elegans. Lss., E. aconiatum, Dtz., and 

 E. agnatum, Dtz., found in Buteo and Vanellus. 



Patagifer bilobus, Rud., which occurs in the intestine of 

 several European and South American Ardeiformes is also 

 found in Australia in a number of birds of the same family. 

 P. acuminatus and P. fratemus are Australian species 

 closely related to the foregoing and found in similar birds, 

 e.g., Ibis molucca and Herodias timoriensis respectively. 



Chaunocephalus ferox, is another Echinostomid having, 

 like Patagifer bilobus, a very wide distribution. It is found 

 in Australia in the Black-necked Stork, Xenorhynchus 

 asiaticus, a bird which occurs in India, Burmah, the Malay 

 Peninsula, New Guinea, and Northern Australia. The 

 same trematode is also recorded from several species of 

 storks in Europe. 



Plagiorchiim:. 



Plagiorchis (Lepoderma) nisbetii, Nicoll, from Chibia 

 (Dicrura) bracteata is related to P. cirratum, Rud., found 

 in Corvus monedula in Europe ; and P. clelandi from Petro- 

 chelidon ariel in Australia is closely related to P. maculosus 

 parasitic in the European swallow Hirundo. All these 

 hosts are passeriform birds. P. spatulatus, another Aus- 

 tralian form, is also fairly close to P. maculosus, but it 

 occurs in one of the Motacillidse, Anthus australis. 



