WHICH DIED IN TilE ZUOLOGICAL GARDEJSS. 



407 



a part in altering the size of the head, thvis supporting the view, 

 as to the function of the " ballonets," recently put forward in a 

 paper read before this Society by Ba3'lis and Lane*. 



A microscopical examination of the fteces of the same Leopard 

 Oat showed many minute ISTematode embryos. A similar exami- 

 nation of the stomach contents gave the same result, but no 

 adults could be found in this or any other of the neighbouring- 

 organs. However, in the mucosa of the oesophagus and naso- 

 pharynx the same embryos were present, but here each was 

 coiled up in an exceedingly thin membranous shell. The pre- 

 sence of these viviparous eggs in the nasopharynx led to the 

 discovery of the adult worms in a most unusual position, for the 

 frontal sinus v/as next explored, and here large numbers of a 

 species of Synthetocaidus were found. So far as we have been 

 able to ascertain, this species is new to science, but it is closely 

 allied to S, riifescens, Avliich occurs occasionally in the lungs and 

 air-passages of the Sheep in Europe. 



It is of interest to note that for some time befoi'e death tlie 

 animal sufiered fi'om "fits" and was often seen to lose its balance 

 and fall. These " fits," and loss of equilibrium were no doubt 

 due to the presence of Synthetocauhis in the frontal sinus. 



Further examination of the fa3ces from the same animal 

 showed many Treinatode ova, which were recognized as those of 

 Paraijoniv.ius uiestermanni. The lungs were then searched, and 

 four specimens of the adult fluke found. The number of eggs in 

 the fteces was exceedingly large considering the few adults which 

 gave rise to them. 



I am indebted to Professor R. T. Leiper for his invaluable 

 assistance and advice on a number of the more intricate points 

 arising in the course of the above inquiry. 



List of Parasites found, ivith their Hosts. 

 Trematoda. 



* P. Z.S. 1920, p. 245. 



t Denotes that this Parasite has not been recorded before from this Host. 



