402 ON SOME H.EMOGREGARINES FROM AUSTRALIAN REPTILES, 



(c) //. petauri Welsh, Dalyell and Burfitt,(4) from a marsupial 

 " squirrel," Petaurus sciureus Shaw (New South Wales). 



(d) H. amethystina J ohnHton,{Q) from the Northern carpet-snake 

 Python amethystinus Schn.(North Queensland). 



Of the above, the first and the fourth have been met with in our 

 work at the Bureau of Microbiology, and in addition, H. (Leuco- 

 cytozoon) muris Balfour {5),originally described from the Egyptian 

 Sudan, has been met with on a few occasions!?) in the sewer-rat 

 {Mus decimianus Pallas) in Sydney during our plague-investiga- 

 tion work. Dr. J. B. Cleland(8) recorded the occurrence of the 

 same parasite from this rat in West Australia under the names 

 Leucocytozoon ratti, and L. halfoiiri Laveran, the former name 

 being a slip, whilst the latter name would be the correct one if 

 further investigation should show that H. balfouri {L. jaculi) 

 Lav., of the Jerboa, and H ynuris of the rat, are specifically the 

 same. 



Although I have examined blood-tilms from a large number of 

 birds, mammals, lizards, frogs, and fishes, the presence of hsemo- 

 gregarines has not been detected in them, though species of other 

 hsematozoa, such as Ilalteridimn, Plasiaodium, Babesia, and 

 Hcemocystidium were seen, many of them having been described 

 recently by Dr. Cleland and myself. The H?emogregarines 

 described below were met with in our Bureau work. 



HiEMOGREGARiNA SHATTOCKi Saiub and Seligm.(3) 



(Plate xxxiv , fi^s.13-20). 



In 1907, Sambon and Seligmann(2) described the above species 

 from the erythrocytes of an Australian dian:Lond-snake, Python 

 spilotes Lacep., which died in the Zoological Gardens, London. 

 They mentioned(i) that this snake occurs in Australia, and New 

 Guinea. The true diamond snake has a very restricted range, 

 being found only along the coastal districts from Broken Bay to 

 Jervis Bay, and the adjacent mountain slopes; whilst the variety 

 of it, P. spilotes var. variegata Gray, better known as the carpet- 

 snake, is found all over the continent. T am inclined to take 



