OX THE TRYPANOSOME OF THE LITTLE OWL. 
141 
Observations on the Trypanosome of the Little 
Owl (Athene noctua), with Remarks on the 
other Protozoan Blood-parasites occurring in 
this Bird . 1 
By 
E. 4. UiiMliin. M.A., F.R.S., 
and 
If. yi. 4Voo<lco«*k, D.Sc. 
With Plates 20 and 21. 
The observations to be recorded in this and in a subsequent 
paper are the result of a study of the protozoan blood-para- 
sites of the little owl, which was undertaken by us at Rovigno, 
, Istria, the actual place where Schaudinn’s celebrated investi- 
gation (16) on the same parasites was carried out. A 
re-investigation of these parasites has long been considered 
urgent, and stress has been laid by many people upon the 
importance of the work being done at Rovigno itself. The 
different views which have been taken with regard to the 
correctness or otherwise of Schaudinn’s account are now well 
known, aud it is scarcely necessary to recapitulate them here, 
more especially since they have been recently discussed by 
one of us in the first memoir of this series (18). 
We were together at Rovigno for nearly three months, 
from about the middle of January, 1909. Unfortunately, we 
went much too early in the year. This was chiefly due to 
the fact that one of us (E. A. M.) was obliged to be in 
London from May onwards in order to deliver the University 
course of lectures, which had been previously arranged for 
1 “ Studies on Avian Hamioprotozoa,” No. II. For No. I see * Quart. 
Journ. Micros. Sci.,’ vol. 55, p. 641. 
