410 Ma. H. G. PLIMMER ON 



Birds (coutuined). 



NiME. Habitat. Type. 



Ciipueiva Partridge {Odontojphoriis S. America. Long. 



cajjueira). 

 Occipital Blue Pie {Urocissa occi- India. Short. 



pitalis). 



Barred Dove {GeopeUa striata) do. !Sli;)rt, very thick. 



White-backed Pii)ing' Crow (Gi/intw- Australia". Short, thick. 



rhiiia leitconota). 



Reptiles and Batrachians. 



Bearded Lizard {Ajiiphiholivrus bar- Australia. Short, thick. 



batus). 



Spinj'-tailed Iguana {Ct/clara acaii- C America. do. 



tkura ) . 



8 Giant Toads CBitfo marinus) S. America. do. 



Pine Snake (Fituoph is sai/i) N. America. Long. 



*2 Edible Frogs {liana esculenta) Europe. Short. 



I now come to the Protozoa, and will take first a spirochete, 

 -whiah belongs to the so-called Pro flagel lata. The spirochetes are 

 important as being the cause of such diseases as relapsing fever, 

 tick fever, and syphilis. 



This particular one was found in the blood of a Monkey — Cer- 

 cojnthecus sabceus — and is of the type of 6'pirochceta recurrentis, 

 the cause of relapsing fever. 



Spiroch.eta found IX THE Blood of a 



Name. Habitat. Character. 



Green Monkey {Ceroopltheeus sahceus). Sierra Leone. Like Sp. recurrentis. 



The next in order are the Flagellates, and of these I will take 

 first the Ti-ypanosomes, which are flagellated organisms living in 

 the blood serum. They are the cause of many deadly diseases 

 in man and animals. 



I have found Trypanosomes in 50 mammals, 7 birds, and 

 3 amphibia. 49 of the mammals were ordinary rats, out of 500 

 examined at the Gardens for another purpose, in which the 

 ordinary nxt trypanosome, Trypanosoma lewisi, was found. The 

 other mammal was a F<it Mouse [Steatomys pratensis) irom 

 S. Africa, in which trypanosomes have not hitherto been desciibed. 

 The bird trypanosomes are all new in these particular birds ; but 

 they would appear to belong to the general type of Trypanosoma 

 avium. These bird trypanosomes are quite difi:'erent to the mam- 

 malian variety : they are very large and thick, they stain densely 

 and indistinctly, and they move very slowly. The spleens of the 

 infected birds were large and their blood an^iemic. The trypano- 

 somes found in reptiles were all of the type of Tryjmnosoma 

 rotatorimn, which was the one described by Gruby in 1843. It 

 has not been described before in the Tree Frog {Hyla vmuloso). 



