2 49 
which is left. The parasite is oval, the protoplasm 
stains a light blue, and the nucleus shews a loose mesh- 
work of chromatin. We have often observed these 
bodies in the blood of moles, but have considerable 
doubts as to their parasitic nature and as to their 
inhabiting red cells. 
Haemamoebae in Bats 
1. H. murinus. —In Vespertilio murinus shews ring 
forms, medium forms, male and female gametes and 
sporulating forms. The spores are twenty to twenty- 
two in number and of an irregular angular shape. 
The sporulating forms are found almost entirely in 
macrophages in the liver. This parasite is pigmented 
and causes enlargement but no stippling of the red 
cell. 
2. H. melanipherus. —In Miniopterus schreibersii 
has a general resemblance to the quartan parasite. 
Gametes are the forms most commonly found, though 
young and medium forms also exist. Sporulating 
forms are unknown. The red cell is unchanged. 
During hibernation, only gametes are found in the 
blood. 
3. H. vesperuginis. —Occurs in the blood of various 
species of bats. It is unpigmented. Minute spindles, 
rings, large forms and Piroplasma-like forms, occur. 
It produces considerable anaemia and degenerative 
changes in the red cell. It possibly is a Piroplasma. 
It is possible that these parasites are conveyed by 
wingless flies, of the family Nycteribiidae which occur 
on bats. In V. capensis , the South African Serotine 
bat, haemamoebae also occur. 
4. H. monosoma. —In Vesperugo, sp ., in Annam : 
sexual forms only are known. 
