G. H. F. Nuttall 
113 
mononuclear leucocytes (whence frequently termed Leucocytozoa ) during 
the stage of their development when they are found in the peripheral 
blood: 
Ilaemogregarina occurring in Leucocytes. 
Species and Synonymy 
Host 
Country 
Size of parasite 
H. canis (James), 1905 
Canis familiaris 
Assam (Bentley, 1904). 
8—10 x 4—5 fx 
— L. bentleyi Adie, 1906 
Perak, Fed. Malay 
States (Gerrard, 
1906), India 
(Bentley, 1905) 
11—12x4-2—5 p 
(Gerrard) 
H. canis adusti Nuttall, 1910 
Canis adustus 
(Jackal) 
British East Africa 10—13 x 4-3—6-3 g 
II. felis domesticae (Patton), 1908 
Felis domesticus 
Madras, India 
Not given 
H. muris Balfour, 1905-6 
Mus decumanus 
Sudan (Balfour). 
Perth, W. Australia 
(Cleland, 1906) 
9—10 - 5 x 4-5 p 
= (?) L. ratti Adie, 1906 
Mus rattus 
India 
11-7x5-6 p 
= (?) H. perniciosa (Miller), 
Mus decumanus 
United States of 
12x6 p 
1908 
= Hepatozoon perniciosum 
(white rat) 
N. America 
H. musculi (Porter), 1908 
Mus musculus 
London 
10-9x5-1 p 
II. funambuli (Patton), 1906 Funambulus palmarum India 
(palm squirrel) 
10 x 5 p 
H. leporis (Patton), 1908 
Lepus nigricollis 
(hare) 
Madras, India 
Not given 
Haemogregarina occurring in 
Bed Blood Corpuscles. 
Species 
Host 
Country 
H. balfouri Laveran, 1905 
= H. jaculi Balfour, 1906 
Jaculus gordoni 
Jerboa 
Sudan 
H. gerbilli Christophers, 1905 
Gerbillus indicus 
Indian field rat 
India 
H. dasyuri Welsh, Dalyell & Burfitt, 1908 Dasyurus viverrinus Sidney, Australia 
“native cat ” 
H. petauri Welsh & Barling, 1908 Petaurus sciureus Sidney, Australia 
marsupial flying squirrel 
Spirochaeta bovis caffris n.sp. 
Plate XI, Figs. 6—9. 
The examination of four coverglass preparations made from the blood 
of the buffalo (p. 108) revealed only four spirochaete-like parasites, all of 
which are illustrated in the accompanying plate. They differ from any 
spirochaetes I have hitherto seen in being very broad although they 
taper uniformly at both ends. Stained by Giemsa, they assumed a 
